MQ771-GL: Fibocom’s Compact Cat.M Module Enters Sampling, Driving Asset Tracking Innovation
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MQ771-GL: Fibocom’s Compact Cat.M Module Enters Sampling, Driving Asset Tracking Innovation

　　Fibocom (300638.SZ | 0638.HK), a global leader in wireless communicationmodules and AI solutions, announced that its Cat.Mmodule MQ771-GL has entered the engineering sample stage. Withits ultra-compact size, low power consumption,global frequency coverage, and stable network compatibility,the MQ771-GL offers a cost-effective IoT solution for asset tracking, enablinglong battery life, high reliability, and precise positioning for large-scaleLPWA deployments.　　Dual-Mode Support for FlexibleDeployment　　The MQ771-GL supports 3GPP Release 14Cat.M1 and NB-IoT standards and is compatible with mainstream frequencybands worldwide, making it ideal for LPWA network deployments across NorthAmerica, Europe, Asia, and beyond. This global compatibility ensuresreliable connectivity for asset tracking devices and enables flexible operationeven in complex or challenging environments.　　Compact Size with Ultra-Low Power Consumption　　Leveraging advanced power managementtechnologies, the MQ771-GL supports PSM (Power Saving Mode) and eDRX (extendedDiscontinuous Reception), dramatically extending device battery life. InPSM mode, standby current drops to the microampere (μA) level, cutting powerconsumption by 75% compared with the previous generation — ideal for smartwater meters. In eDRX mode, power usage is reduced by 90%, making itsuitable for gas meters, asset trackers, and other long-term outdoor devices,enabling multi-year operation.　　The module’s 17.7mm × 15.8mm LGA package is compatible with the pin layout of Fibocom’s Cat.1 modules, supportingflexible product iteration. Its compact form factor is well-suited forspace-constrained tracking devices, simplifying integration and deployment.　　Enhanced Performance with Rich InterfaceOptions　　The MQ771-GLsupports MQTT, CoAP, LwM2M and standard interfaces like UART, I2C,and I2S, making it adaptable for diverse asset tracking terminals. Itintegrates Soft GPS for precise real-time positioning and features a hardware-levelsecurity engine for encrypted, secure communications, protecting againstunauthorized access.　　Liu Sunzhi,General Manager of Fibocom’s MTC Business Unit, commented:　　"With the MQ771-GL now entering the engineering sample stage, itsultra-compact, ultra-low-power design is set to lower development barriers forasset tracking terminals and accelerate large-scale IoT connectivity. Movingforward, we will continue to strengthen collaborative innovation with verticalindustries, driving the rapid commercialization of low-power, wide-connectivitysolutions for asset tracking and other IoT applications."
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Release time：2026-02-06 17:41 reading：534 Continue reading>>
A new choice for high-accuracy, highly compatible current sensing: NOVOSENSE launches the NSCSA21x-Q series high-precision current sense amplifiers
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A new choice for high-accuracy, highly compatible current sensing: NOVOSENSE launches the NSCSA21x-Q series high-precision current sense amplifiers

　　NOVOSENSE has launched the NSCSA21x-Q series high-precision current sense amplifiers, offering a –2V to 28V common-mode input range, ultra-low ±5μV offset voltage, 130dB CMRR, and 200kHz bandwidth. Designed to meet the needs of new energy vehicles, server power supplies, telecom power systems, and energy storage, the NSCSA21x-Q series delivers exceptional accuracy and system stability in demanding environments.　　Addressing Key Challenges in Modern Power and Automotive Systems　　As automotive electrification and industrial intelligence advance, current sensing accuracy and system stability have become critical to overall performance. Traditional current sensors often face limitations in low-voltage detection, reverse connection protection, and dynamic response, impacting system reliability and efficiency. The NSCSA21x-Q series directly targets these pain points, overcoming three major challenges in precision current detection:　　(1) High-Precision Motor Phase Current Sampling　　Supports bidirectional current sensing in H-bridge structures. Combined with FOC algorithms, it enables ±0.5° electrical angle control for precise motor performance.　　(2) Suppression of Parasitic Inductance Interference　　In low-side sensing, the NSCSA21x-Q effectively mitigates “ground bounce” effects through PWM rejection, maintaining high accuracy even with small current signals. With a 130dB CMRR and only ±5μV input offset, it ensures signal integrity under severe transient conditions.　　(3) Reverse Battery Protection　　Withstands up to –28V reverse voltage, safeguarding the system against battery misconnection and simplifying protection circuit design.　　Robust Performance Across All Operating Conditions　　Breaking conventional design limits, the NSCSA21x-Q series supports a wide –2V to 28V common-mode range with built-in PWM suppression and chip-level reverse-voltage tolerance. Even under –28V reverse common-mode stress, the device quickly resumes normal operation. In rigorous transient tests (–2V to 12V step change), it achieves a <5μs recovery time and <50mV output disturbance, making it ideal for high-accuracy current detection in motor drives and solenoid control under PWM switching environments.　　Precision and Stability Across Temperature Extremes　　Featuring a ±5μV (typical) input offset voltage and ±0.5% maximum gain error, the NSCSA21x-Q maintains outstanding accuracy over a full –40°C to 125°C temperature range. With a temperature drift as low as 0.05μV/°C, it ensures stable measurements in harsh automotive and industrial conditions.Input Offset Voltage Distribution of NSCSA21x-Q SeriesCommon-Mode Rejection Ratio (CMRR) Distribution of NSCSA21x-Q Series　　Fast Dynamic Response and Strong Transient Protection　　With a 200kHz bandwidth (50V/V gain) and a 2V/μs slew rate, the NSCSA21x-Q supports fast current variation monitoring and real-time protection. Compared to mainstream alternatives, it achieves up to 3× faster transient response, meeting the needs of high-speed applications such as motor control and power protection.　　Flexible Configurations with Automotive-Grade Reliability　　The NSCSA21x-Q series offers four fixed gain options (50V/V, 75V/V, 100V/V, and 200V/V), covering both industrial and automotive versions. Packaged in an ultra-compact SC70-6 (2mm × 1.25mm) footprint, it's pin-compatible with industry standards, enabling smaller system size and higher design efficiency.Four Fixed-Gain Versions of the NSCSA21x-Q Series　　The NSCSA21x-Q series is AEC-Q100 Grade 1 qualified, supporting –40°C to +125°C operation and ensuring long-term reliability in automotive environments.
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Release time：2026-01-15 17:20 reading：1607 Continue reading>>
NOVOSENSE launches automotive- and industrial-grade NSCSA240-Q series current sense amplifiers to address PWM transient interference challenges
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NOVOSENSE launches automotive- and industrial-grade NSCSA240-Q series current sense amplifiers to address PWM transient interference challenges

　　NOVOSENSE announced the launch of its new bidirectional current sense amplifier series, NSCSA240-Q, covering both industrial and automotive versions, designed for high-voltage PWM systems in vehicles and industrial equipments. The NSCSA240-Q series integrates enhanced PWM rejection technology, supporting bidirectional current sensing with exceptional transient immunity, automotive-grade precision, and flexible configurability. Featuring an ultra-wide input common-mode range from –4V to 80V, a typical input offset voltage of ±5μV, and a 135dB DC Common-Mode Rejection Ratio (CMRR). This series effectively tackles the challenge of high-frequency transient interference in PWM systems, providing a highly reliable current monitoring solution for automotive electronic power steering (EPS), motor drive, industrial automation and other applications. The NSCSA240-Q series meets the AEC-Q100 automotive reliability standard.　　Superior Transient Immunity: Reliable Performance in High-Voltage PWM Environments　　In PWM systems, rapid switching can cause severe common-mode voltage fluctuations that distort output signals in conventional amplifiers. The NSCSA240-Q series achieves an AC CMRR of 90dB at 50kHz, effectively suppressing ΔV/Δt transients. Its proprietary transient suppression design reduces output disturbances by up to 80%, achieving a recovery time of less than 10μs under 80V common-mode voltage transients. With a bandwidth ranging from 450kHz to 600kHz (gain-dependent), it supports both high-speed overcurrent protection and accurate low-frequency PWM signal capture—ensuring stable, low-noise signal performance for EPS, motor drive and industrial motor control systems. The wide –4V to 80V input common-mode range offers broad dynamic capability and robust tolerance across 12V, 24V, and 48V vehicle power architectures. Furthermore, ±2000V ESD protection (HBM/CDM) enhances resistance to external electrical disturbances, ensuring overall system reliability.NSCSA240-Q Series Application Diagram　　Automotive-Grade Precision: ±5μV Offset and ±0.1% Accuracy Across –40°C to 125°C　　Designed to meet the increasingly stringent current measurement requirements of automotive electronics, the NSCSA240-Q series delivers exceptional measurement stability. It features a typical input offset voltage of only ±5μV (maximum ±25μV) and achieves ±0.1% accuracy over a wide temperature range (–40°C to 125°C). With a typical gain error of 0.05%, it ensures reliable and consistent current monitoring even under harsh conditions. Fully qualified to the AEC-Q100 automotive standard, the series guarantees long-term reliability in demanding in-vehicle environments.　　Flexible Integration: Multiple Gain and Package Options for Design Optimization　　As automotive systems trend toward miniaturization and integration, the NSCSA240-Q series is engineered for flexible and space-efficient design. It offers four fixed gain options—20V/V, 50V/V, 100V/V, and 200V/V—supporting shunt resistors ranging from 10mΩ to 0.1mΩ for flexible current detection. The series is available in two compact packages: SOIC-8 (4.9mm × 3.91mm) and TSSOP-8 (3mm × 4.4mm), allowing easy integration into space-constrained motor controller PCBs and helping designers optimize system layouts within limited board area.NSCSA240-Q Series Package
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Release time：2026-01-12 13:52 reading：1096 Continue reading>>
ROHM has Developed Ultra-Compact CMOS Op Amp: Delivering Industry-Leading* Ultra-Low Circuit Current
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ROHM has Developed Ultra-Compact CMOS Op Amp: Delivering Industry-Leading* Ultra-Low Circuit Current

　　ROHM’s ultra-compact CMOS Operational Amplifier (op amp) TLR1901GXZ achieves the industry’s lowest operating circuit current. This IC is optimized to be applied as a measurement sensing amplifier in size-constrained applications such as handheld measurement instruments, wearable devices, and indoor motion detectors.　　As the demand continues to grow for more sophisticated control in battery-driven devices, the importance of sensors that detect parameters such as temperature, humidity, vibration, pressure, and flow rate – along with the op amps used to amplify these sensor signals – continues to rise. At the same time, greater miniaturization and energy savings in applications is a necessary step to realizing a sustainable society –placing similar demands on individual devices as well.　　In response to these evolving market needs, ROHM has advanced its process, packaging, and proprietary Nano Energy™ circuit technologies to develop an op amp that addresses three key requirements: lower power consumption, higher accuracy, and compact size. The newly developed TLR1901GXZ achieves an ultra-compact footprint of less than 1mm2 by adopting a WLCSP (Wafer Level Chip Scale Package) with a fine ball pitch of 0.35mm while delivering an industry-leading low operating current of 160nA (typ.). This not only contributes to high-density mounting in space-constrained applications, but also to a significantly extended battery life.　　Moreover, the TLR1901GXZ features an exceptionally low input offset voltage of just 0.55mV (max.), one of the best among ultra-low current op amps. This represents an approximate 45% reduction compared to typical products on the market. A maximum input offset voltage temperature drift of 7uV/°C ensures high accuracy operation over the operating temperature range.　　Design flexibility can be further enhanced by pairing the op amp with ROHM’s ultra-compact general-purpose resistors, such as the MCR004 (0402 metric / 01005 inch) and MCR006 (0603 metric / 0201 inch), for applications like gain adjustment. The MCR004 series lineup includes the MCR004E –an environmentally friendly, fully lead-free option designed to support sustainable designs. Adapter boards featuring SSOP5 package ICs are offered as well to support initial evaluation and replacement assessments.　　Going forward, ROHM will continue to pursue further power savings in op amps by advancing both miniaturization and original ultra-low power technologies. At the same time, we are committed to improving device performance by reducing noise and offset, expanding power supply voltage ranges, and contributing to solving social issues through more precise application control.　　Key Product Characteristics　　Application Examples　　• Consumer devices: wearables, smart devices, motion sensors, etc.　　• Industrial equipment: gas detectors, fire alarms, handheld measurement instruments, environmental sensors for IoT, etc.　　Online Sales Information　　Sales Launch Date: Now　　Pricing: $2.1/unit (samples, excluding tax)　　Online Distributors: AMEYA360　　• Applicable Part No: TLR1901GXZ-E2　　• IC-Mounted Adapter Board: TLR1901GXZ-EVK-001　　What is Nano Energy™ Technology?　　Nano Energy™ refers to proprietary ultra-low current consumption technology that achieves a current consumption on the order of nano ampere (nA) by combining advanced analog technologies covering circuit design, layout, and processes utilizing ROHM’s vertically integrated production system.　　This contributes not only to extending operating time of battery operated IoT and mobile devices, but also improving efficiency in industrial and automotive equipment where increased power consumption is problematic.　　https://www.rohm.com/support/nano 　　Nano Energy™ is a trademark or registered trademark of ROHM Co., Ltd.　　Terminology　　WLCSP (Wafer Level Chip Scale Package)　　An ultra-compact package in which terminals and wiring are formed directly on the wafer before separated into individual chips. Unlike general packages where the chips are cut from wafers and then molded with resin to form terminals, WLCSP allows the package size to match the chip itself, making it possible to further reduce size.　　Input Offset Voltage　　The small voltage difference that must be applied between the inverting and non-inverting inputs of the operational amplifier to make the output voltage exactly zero.　　Input Offset Voltage Temperature Drift　　Refers to how much an op amp's input offset voltage changes as the temperature changes.
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Release time：2025-09-12 17:23 reading：772 Continue reading>>
New High Accuracy Current Sense Amps Compatible with Both Negative and High Voltages
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New High Accuracy Current Sense Amps Compatible with Both Negative and High Voltages

　　ROHM has developed a new lineup of high accuracy current sense amps – the BD1423xFVJ-C and the BD1422xG-C. They are qualified under the AEC-Q100 automotive reliability standard. The BD1423xFVJ-C series, offered in the TSSOP-B8J package, supports input voltages up to +80V, making it ideal for high-voltage environments such as 48V DC-DC converters, redundant power supplies, auxiliary batteries, and electric compressors. The series includes three models with different gain settings: BD14230FVJ-C, BD14231FVJ-C and BD14232FVJ-C.　　For lower voltage use cases, the BD1422xG-C, available in the compact SSOP6 package, supports input voltages up to +40V. This makes them suitable for automotive applications requiring space-saving designs, such as current monitoring and protection (overcurrent) in 5V/12V power supply networks used in body and drivetrain domains. Like its high-voltage counterpart, this series also consists of three different gain options: BD14220G-C, BD14221G-C and BD14222G-C.　　In recent years, alongside conventional 5V/12V power supplies, the automotive market has seen a growing adoption of 48V systems fueled by the rising popularity of electric vehicles. Furthermore, as vehicle functionality becomes more advanced, the need for precise monitoring and control across a wide range of applications continues to increase, placing a greater importance on high-accuracy current sensing.　　A current sense amp indirectly measures the current flowing through a circuit by amplifying the miniscule voltage drop across a shunt resistor. The amplified signal is then sent to an ADC or comparator for system control and monitoring. ROHM’s automotive-grade current sense amps meet market demands by leveraging proven analog expertise. This enables high-accuracy current sensing with compatibility for both negative and high voltage environments, contributing to improved safety and reliability in automotive applications, particularly electric vehicles.　　These new products achieve greater space efficiency by integrating most of current sensing circuitry, typically comprised of an operational amplifier and discrete components, int o a single package. As a result, current detection is possible by simply connecting a shunt resistor. The devices also feature a two-stage amplifier configuration, consisting of a chopper amplifier at the input and an auto-zero amplifier at the output. Internal resistor matching for gain setting ensures stable, accurate current sensing (±1%) while minimizing the effects of temperature variations.　　Furthermore, current detection accuracy is maintained even when an external RC filter circuit added for noise suppression, significantly reducing design complexity and development time. Additional features include -14V negative voltage tolerance that supports back electromotive force, reverse connection, and negative voltage input.　　Going forward, ROHM will continue to deliver optimal solutions that contribute to higher precision and enhanced reliability in automotive equipment.　　Application Examples　　• BD1423xFVJ-C (for 48V systems): Redundant power supplies, auxiliary batteries, DC-DC converters, and electric compressors, and the like　　• BD1422xG-C (for 5V/12V systems): Body DCUs (Domain Control Units) / ECUs (Electronic Control Units), etc.　　Terminology　　AEC-Q100 Automotive Reliability Standard　　AEC stands for Automotive Electronics Council, a reliability standard for automotive electronic components established by major automotive manufacturers and US electronic component makers. Q100 is a standard that specifically applies to integrated circuits (ICs).　　Shunt Resistor　　A resistor connected in series in the current path to detect the current in the circuit by measuring the potential difference across it.　　Chopper Amp　　An amp circuit designed to minimize signal offset and noise, primarily used for accurately amplifying low-frequency and weak DC signals.　　Auto-Zero Amp　　An amp that automatically compensates for offset voltage (unwanted noise and errors) by continuously sampling and correcting it during operation. This ensures high signal accuracy, making it ideal for applications that demand ultra-precise measurement and signal processing.
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Release time：2025-06-13 16:56 reading：764 Continue reading>>
NOVOSENSE introduces NSDA6934-Q1: Automotive-grade Class D audio amplifier with digital input
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NOVOSENSE introduces NSDA6934-Q1: Automotive-grade Class D audio amplifier with digital input

　　NOVOSENSE recently announced the launch of the NSDA6934-Q1, a digital-input automotive-grade Class D audio amplifier designed for vehicle audio systems. Featuring four-channel audio output with up to 75W per channel, it supports low-latency mode and sampling rates up to 192kHz. The amplifier offers flexible switching frequencies, multiple modulation options, and comprehensive protection features, making it highly adaptable to various automotive audio system designs.　　Class D amplifiers: Driving the evolution of automotive audio　　As automotive electronics continue to advance, Class D amplifiers have emerged as the preferred choice for vehicle audio systems due to their high efficiency, low heat dissipation, and compact form factor. These amplifiers not only meet modern vehicles’ stringent energy efficiency demands but also enhance audio quality and power output within limited space, playing a key role in the evolution of automotive audio technology.　　Optimized Low-Latency Mode: Reducing Path Delay by Over 70%　　In automotive audio systems, amplifiers boost signals from the DSP (Digital Signal Processor) before transmitting them to the speakers. Traditional amplifiers can contribute to over 30% of total signal transmission latency, impacting system performance.　　The NSDA6934-Q1 features a unique low-latency mode that reduces transmission path delay by more than 70%, granting the DSP additional time for signal processing. This reduces DSP resource demands and enhances the effectiveness of RNC (Road Noise Cancellation). Additionally, the amplifier supports up to 192kHz sampling rates, delivering high-resolution audio with enhanced clarity and detail for an immersive in-car listening experience.　　Flexible Configurations to Suit Various Designs　　The NSDA6934-Q1 provides a wide range of switching frequencies and modulation options, allowing system engineers to optimize efficiency and size.　　Adjustable Switching Frequency (384kHz – 2.1MHz)　　At 384kHz, the amplifier achieves up to 93% efficiency, ideal for applications prioritizing power savings, though it requires a 10μH inductor for operation.　　At 2.1MHz, the amplifier supports a compact 3.3μH inductor, making it suitable for space-constrained smart cockpit integration.　　Selectable Modulation Modes (BD Mode & 1SPW Mode)　　BD Mode (50% duty cycle) ensures superior linearity at high power levels, making it ideal for high-output applications.　　1SPW Mode (20% duty cycle) reduces conduction losses, improving efficiency in low-power scenarios　　Additionally, the NSDA6934-Q1 supports TDM16 data format, ensuring seamless integration with mainstream audio interfaces. With eight selectable I2C addresses, it prevents communication conflicts among peripheral devices. It also features integrated PVDD voltage monitoring, eliminating the need for external resistor dividers and simplifying system wiring and debugging.　　Enhanced EMC Performance & Comprehensive Protection　　The NSDA6934-Q1 incorporates multiple EMC optimization techniques, including slew rate control, phase control, and three spread-spectrum modes (triangular wave, random spread, hybrid spread), helping customers pass system-level EMC tests efficiently.For system reliability, the amplifier integrates multiple intelligent protection and diagnostic functions, including:　　• I2C watchdog for real-time bus monitoring.　　• Thermal protection, which automatically reduces gain under high-temperature conditions.　　• AC/DC diagnostics for real-time power supply monitoring.　　• Comprehensive protection suite, including temperature alarms, over-temperature shutdown, undervoltage, overvoltage, and overcurrent protection, ensuring robust system stability.
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Release time：2025-04-24 17:19 reading：1708 Continue reading>>
ROHM Develops the Industry's Smallest* CMOS Op Amp Optimized
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ROHM Develops the Industry's Smallest* CMOS Op Amp Optimized

　　ROHM has developed an ultra-compact 1.8V - 5V, rail-to-rail CMOS operational amplifier (op amp) - the TLR377GYZ. It is optimized for amplifying signals from sensors such as temperature, pressure, flow rate, used in smartphones, small IoT devices, and similar applications.　　The size of smartphones and IoT devices continues to decrease - requiring smaller components. To accurately amplify small signals as needed in high precision sensing, op amps must improve low input offset voltage and noise performance while continuing to shrink the form factor.　　The TLR377GYZ succeeds in balancing miniaturization with high accuracy (which has been difficult to achieve with conventional op amps) by further evolving proprietary circuit design, process, and packaging technologies cultivated over many years.　　Op amps’ input offset voltage and noise generation degrade amplification accuracy and can be suppressed by increasing the size of the built-in transistors - but at the expense of miniaturization. In response, ROHM developed proprietary circuits which achieve a maximum offset voltage as low as 1mV without increasing the size of the transistors. In addition, proprietary process technology greatly reduce flicker noise, while ultra-low noise is achieved with an input equivalent noise voltage density of 12nV/√Hz by optimizing the resistive components at the element level. Furthermore, the new product adopts a WLCSP (Wafer Level Chip Scale Package) with a ball pitch of just 0.3mm utilizing original packaging technology. This reduces size by approximately 69% compared to conventional products and 46% over existing compact products.　　The IC-mounted conversion board that can replace SSOP6 packages is also offered to support replacement considerations and initial evaluation. Both the new product and conversion board are available for purchase through online distributors. In addition, the high accuracy SPICE model - called ROHM Real Model - is available on ROHM’s website for verification simulations.　　Going forward, in addition to greater miniaturization and accuracy, ROHM will continue to improve op amp performance by reducing power consumption further utilizing proprietary ultra-low current consumption technology.　　Key Product FeatureA shut down function required by mobile devices is built in, reducing power consumption during standby mode.　　Application Examples• Smartphones, compact IoT devices equipped with measurement sensor amps, etc.　　High Accuracy Simulation Models: ROHM Real ModelsROHM Real Models are new high accuracy SPICE models that utilizes original model-based technology to faithfully reproduce the electrical and temperature characteristics of the actual IC, resulting in a perfect match between the IC and simulation values. This ensures reliable verification, contributing to more efficient application development - for example by preventing rework after prototyping. ROHM Real Models are now available on ROHM’s website.　　TerminologyInput Offset Voltage　　The error voltage that occurs between the input terminals of an op amp.　　Flicker Noise　　Noise inherent to electronic components such as semiconductors. Power is inversely proportional to frequency, so the lower the frequency the greater the power. Also called 1/f noise or pink noise. Other types of noise include thermal (i.e. Johnson-Nyquist, white) noise.　　Equivalent Input Noise Voltage Density　　The value obtained by short-circuiting the input terminals and referring the noise voltage density appearing at the output to the input terminals, i.e., since amplifiers have gain (amplification factor), dividing the output noise voltage density by the gain allows for a fair evaluation of the amplifier’s intrinsic noise characteristics.　　ROHM Real Model　　A high-accuracy simulation model that succeeds in achieving a perfect match between the actual IC and simulation values utilizing ROHM’s proprietary model-based technology.
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Release time：2024-08-13 14:03 reading：1051 Continue reading>>
ROHM Develops a New Op Amp that Minimizes Current Consumption
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ROHM Develops a New Op Amp that Minimizes Current Consumption

　　ROHM has developed a linear operational amplifier (op amp) - LMR1901YG-M - featuring the lowest* current consumption in the industry. This makes it ideal for amplifying sensor signals used to detect and measure temperature, flow rate, gas concentration, and other parameters in applications powered by internal sources (i.e. batteries).　　In recent years, advanced control has been in increasing demand for various applications in consumer and industrial electronics. Therefore, there is an increasing need for accurate sensing of parameters relevant to the application - such as, temperature, humidity, vibration, pressure, and flow rate. Op amps whose main function is to amplify sensor signals for subsequent detection and/or analog-to-digital conversion, is a crucial component in the signal chain - greatly affecting both accuracy and power consumption. ROHM is developing op amps that satisfy the dual need for high accuracy and low current consumption. By further refining the circuit design based on original Nano Energy™ technology, ROHM is now able to offer an op amp that delivers the lowest current consumption on the market.　　The LMR1901YG-M leverages original ultra-low power technology that thoroughly suppresses current increase caused by temperature and voltage changes to reduce current consumption to just 160nA (Typ.) - approximately 38% lower than that of general low power op amps. This not only extends the life of applications powered by internal batteries like electronic shelf labels, but also contributes to longer operating times for smartphones and other devices equipped with rechargeable batteries. At the same time, this low current consumption does not change over the temperature range of -40°C to +105°C - allowing stable low-power operation, even in environments where external temperatures fluctuate, including fire alarms and environmental sensors.　　Other performance enhancements include 45% reduction of input offset voltage to just 0.55mV (Max. Ta=25°C) over general low-current op amps while a maximum input offset voltage temperature drift of 7V/°C is guaranteed. This enabling high accuracy amplification of sensor signals. Capable of operating from 1.7V to 5.5V supply voltage and offering rail-to-rail input/output, LMR1901YG-M is suitable for a wide variety of applications in the industrial equipment and consumer markets. ROHM’s new op amp also complies with the automotive reliability standard AEC-Q100 - ensuring stable operation even under harsh conditions such as vehicle cabins without compromising functionality.　　In addition to various technical documents necessary for circuit design and SPICE models for simulation (available free of charge on ROHM’s website), the LMR1901YG-M can be used with ROHM Solution Simulator to speed up time to market.　　Going forward, ROHM will continue to pursue further power savings in op amps using proprietary ultra-low power technology. On top, ROHM aims to improve the performance of op amp lineups by reducing noise and offset - increasing power savings and expanding the power supply voltage range while contributing to solving social issues through higher accuracy application control.　　Application Examples• Consumer applications: smartphones, smartwatches, wearables, fire alarms, motion sensors, etc.　　• Industrial equipment: electronic shelf labels (ESL), handheld measurement instruments, data loggers, environmental sensors for IoT, etc.　　• Automotive systems: anti-theft sensors, drive recorders, etc.　　Online Sales InformationSales Launch Date: November 2023　　Pricing: $4.0/unit (samples, excluding tax)　　Online Distributors: DigiKey, Mouser and Farnell　　The products will be offered at other online distributors as they become available.。　　Product Information　　Applicable Part No: LMR1901YG-M　　Online Distributors　　What is Nano Energy™ Technology?Nano Energy™ refers to proprietary ultra-low current consumption technology that achieves a current consumption on the order of nano ampere (nA) by combining advanced analog technologies covering circuit design, layout, and processes utilizing ROHM’s vertically integrated production system.　　This contributes to not only extending the operating time of battery operated IoT and mobile devices, but also improved efficiency in industrial and automotive equipment where increased power consumption is problematic.　　*Nano Energy™ is a trademark or registered trademark of ROHM Co., Ltd.　　TerminologyInput Offset Voltage　　Refers to the error voltage that occurs between the input terminals of an op amp.　　Input Offset Voltage Temperature Drift　　The fluctuation in input offset voltage caused by a rise/fall in temperature. The smaller this value is the higher the op amp accuracy. Zero-drift op amps automatically compensate for input offset temperature drift.　　Rail to Rail Input/Output　　A circuit format that allows the input and output voltages of an op amp to accommodate the entire supply voltage range. The supply voltage in this case is called a Rail.　　ROHM Solution Simulator　　A free electronic circuit simulation tool that runs on ROHM’s website. A wide variety of simulations are supported, from component selection and standalone device verification to system-level operational testing.
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Release time：2024-04-12 11:51 reading：992 Continue reading>>
ROHM's New Zero-Drift Op Amp with High Accuracy Regardless of Temperature Changes
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ROHM's New Zero-Drift Op Amp with High Accuracy Regardless of Temperature Changes

　　ROHM has developed a zero-drift operational amplifier (op amp) - the LMR1002F-LB. It is designed for industrial and consumer electronics devices and minimizes both input offset voltage and input offset voltage temperature drift. Capable of accurately amplifying output signals from sensors installed in various measurement devices, this new op amp is ideal for current sensing applications such as power control inverters and temperature/pressures/flow/gas detectors.　　As automotive and industrial equipment become more sophisticated and application control requirements are more precise, environmental sensors are increasingly being used to quantify temperature, pressure, and gas concentrations such as carbon dioxide to foster a sustainable society. However, sensor signals are so small that amplification is necessary, and if a general op amp with 1mV offset voltage is used to amplify the sensor signal by a factor of 1,000, for example, the offset voltage also increases by this amount - resulting in a voltage error of 1V (1,000mV) in the signal output. At the same time, input offset voltage temperature drift, which varies according to temperature and time, is difficult to compensate for.　　In response, ROHM developed a zero-drift op amp that addresses these problems by leveraging proprietary analog circuit technology - cultivated over many years. The LMR1002F-LB is ROHM’s first zero-drift op amp using the chopper method. In contrast to conventional low-offset op amps featuring a typical input offset voltage of 150µV (Max.), ROHM’s new product limits input offset voltage to just 9µV (94% lower). This eliminates the need for peripheral components or software to adjust the input offset voltage, reducing both design person-hours and costs. On top, input offset voltage temperature drift is just 0.05µV/°C (Max.) in the operating temperature range of -40°C to +125°C - the lowest among ROHM’s op amps. Enabling accurate amplification of measured sensor signals without being affected by environmental changes such as temperature contributes to high accuracy control of industrial equipment in factories. This, coupled with a wide supply voltage range of 2.7V to 5.5V and rail-to-rail input/output, make it ideal for a variety of industrial applications.　　Going forward, ROHM will continue to improve the performance and expand its lineup of zero-drift op amps. Moreover, ROHM will work to improve the performance of op amp lineups by reducing noise and offset - while increasing power savings, and expand the power supply voltage range demanded in the automotive and industrial equipment markets. The overall goal: contributing to solving social issues through higher accuracy application control.      Product Lineup　　Application Examples　　• Industrial equipment: Power control inverters, photovoltaic inverters, storage battery monitoring, pressure gauges, flow meters, temperature controllers, gas detectors, etc.　　• Consumer appliances: Refrigerators, washing machines, air conditioners, etc.　　Online Sales Information　　Sales Launch Date: December 2023　　Pricing: $8.0/unit (samples, excluding tax)　　The product will be offered at other online distributors as it becomes available.　　■Product Information　　Applicable Part No: LMR1002F-LB　　Terminology　　Input Offset Voltage　　Refers to the error voltage that occurs between the input terminals of an op amp.　　Input Offset Voltage Temperature Drift　　The fluctuation in input offset voltage caused by a rise/fall in temperature. The smaller this value is the higher the op amp accuracy. Zero-drift op amps automatically compensate for input offset temperature drift.　　Chopper Circuit　　A circuit configured to detect the offset voltage generated inside an op amp and automatically correct it via digital circuit control. This cancels offset voltage by feeding back the offset voltage stored as capacitance in the circuit using a voltage-current conversion circuit.　　Rail-to-Rail Input/Output　　A circuit format that allows the input and output voltages of an op amp to accommodate the entire supply voltage range. The supply voltage in this case is called a Rail.
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Release time：2024-02-19 14:10 reading：1808 Continue reading>>
10 transimpedance amplifier manufacturers in the world
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10 transimpedance amplifier manufacturers in the world

　　In the realm of electronics and signal processing, the Transimpedance Amplifier (TIA) serves as a vital component, enabling the conversion of minute current signals into measurable voltage outputs. Numerous manufacturers specialize in producing high-quality TIAs, catering to a wide array of applications across industries such as telecommunications, optical communication, biomedical instrumentation, and sensor interfacing.　　These manufacturers boast expertise in designing and crafting TIAs with varying specifications, catering to diverse requirements ranging from low-noise precision amplification to high-speed data processing. This introduction provides an overview of some leading manufacturers in the field of Transimpedance Amplifiers, highlighting their contributions, specialties, and technological advancements in this critical segment of electronic devices.　　一、Marvell　　Marvell Technology, Inc. is an American company, headquartered in Wilmington, Delaware, which develops and produces semiconductors and related technology.　　Products　　Compute　　Data Processing Units　　Networking　　Automotive　　DCI Optical Modules　　Ethernet Controllers　　Ethernet Switches　　Linear Driver　　PAM DSP　　Transimpedance Amplifiers　　Fibre Channel　　HDD　　SSD Controller　　ASIC　　二、Analog Devices　　Analog Devices, Inc. (NASDAQ: ADI) is a global semiconductor leader that bridges the physical and digital worlds to enable breakthroughs at the Intelligent Edge. Analog Devices, Inc., also known simply as Analog, is an American multinational semiconductor company specializing in data conversion, signal processing, and power management technology, headquartered in Wilmington, Massachusetts.　　Products　　A/D Converters (ADC)　　Amplifiers　　Analog Functions　　Audio Products　　Clock and Timing　　D/A Converters (DAC)　　Embedded Security and 1-Wire　　iButton and Memory　　Interface and Isolation　　Motor and Motion Control　　Optical Communications and Sensing　　Power Management　　Processors and Microcontrollers　　RF and Microwave　　Sensors and MEMS　　Switches and Multiplexers　　Video Products　　三、Renesas　　Renesas Electronics Corporation delivers trusted embedded design innovation with complete semiconductor solutions that enable billions of connected, intelligent devices to enhance the way people work and live. A global leader in microcontrollers, analog, power, and SoC products, Renesas provides comprehensive solutions for a broad range of automotive, industrial, home electronics, office automation, and information communication technology applications that help shape a limitless future.　　Products　　Microcontrollers & Microprocessors　　Analog Products　　Automotive Products　　Clocks & Timing　　Interface　　Memory & Logic　　Power & Power Management　　Programmable Mixed-signal, ASIC & IP Products　　RF Products　　Sensor Products　　Space & Harsh Environment　　Wireless Connectivity　　四、Semtech　　Semtech Corporation is a supplier of analog and mixed-signal semiconductors and advanced algorithms for consumer, enterprise computing, communications and industrial end-markets. It is based in Camarillo, Ventura County, Southern California. It was founded in 1960 in Newbury Park, California.　　Products　　Wireless RF　　Circuit Protection　　Signal Integrity　　Professional AV　　PerSe® Smart Sensing　　Broadcast Video　　Power Management　　五、Macom　　MACOM Technology Solutions is a developer and producer of radio, microwave, and millimeter wave semiconductor devices and components. The company is headquartered in Lowell, Massachusetts, and in 2005 was Lowell’s largest private employer. MACOM has more than 70 years of application expertise with multiple design centers, Si, GaAs and InP fabrication, manufacturing, assembly and test, and operates facilities throughout the United States, Europe, and Asia.　　Products　　RF/Microwave & mmWave　　Optical　　Networking　　六、Texas Instrument　　Texas Instruments Incorporated is an American information technology company headquartered in Dallas, Texas that designs and manufactures semiconductors and various integrated circuits. It is one of the top 10 semiconductor companies worldwide based on sales volume.　　They design, manufacture, test and sell analog and embedded semiconductors in markets that include industrial, automotive, personal electronics, communications equipment and enterprise systems.　　Products　　Amplifiers　　七、Xiamen Uxfastic　　Founded in February2003, XIAMEN UX HIGH-SPEED IC CO., LTD is one of the first companies in China specializing in the design of front-end, high-speed optical communication transceiver chips, and has participated in the formulation of over 20national industry standards with more than 100 independent intellectual property rights (IPR). As the leading enterprise in the domestic optical communication chip industry, it has been listed as the national enterprise with IPR advantages and the national technologically advanced small and medium-sized enterprise in SRDI.　　Products　　Trans-impedance amplifier　　Laser driver　　Limiting amplifier　　Transceiver　　MCU　　八、MaxLinear　　MaxLinear is an American hardware company. Founded in 2003, it provides highly integrated radio-frequency analog and mixed-signal semiconductor products for broadband communications applications. It is a New York Stock Exchange-traded company.　　Products　　Access　　Connectivity　　Infrastructure　　Power Management　　Interface　　九、EoChip　　Xiamen EoChip is headquartered in Xiamen, Fujian. The company focuses on the research and development of high-speed optical communication integrated circuit chips and low-power MCU chips.　　Products　　TIA　　BM TIA　　Current Mirror MCU　　BM LA　　Transceiver　　十、Qorvo　　Qorvo is an American multinational company specializing in products for wireless, wired, and power markets. The company was created by the merger of TriQuint Semiconductor and RF Micro Devices, which was announced in 2014 and completed on January 1, 2015. It trades on Nasdaq under the ticker symbol QRVO.　　Products　　Amplifiers　　Control Products　　Discrete Transistors　　Filters & Duplexers　　Frequency Converters & Sources　　Integrated Products　　Optical　　Passives　　Power Solutions　　Switches　　Wireless Connectivity
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Release time：2024-01-10 16:13 reading：1729 Continue reading>>

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