Amplifier / Data Conversion-2024 World Electronics Achievement Awards-EE Times

Product：Wide common-mode，bidirectional current sense amplifier with PWM rejection：DIA2240

Recommended reasons： Description The DIA2240 device is an automotive qualified high precision, bidirectional and zero-drift current sense amplifier with enhance PWN rejection. The device sense drops across the shunt resistor over a wide common-mode voltage range of -4 V to 110 V, which is independent of the operating supply. Depending on the REF pin’s configuration, the DIA2240 can be used for bidirectional current detection. The device achieves ultra-high precision current measurement accuracy under the combination of features such as an ultra-low offset voltage of ±5 µV, a small gain error of ±0.05% and a high DC CMRR. Moreover the enhanced PWM rejection function provides a high level of suppression of large common-mode transients (ΔV/Δt) in systems that use pulse width modulation (PWM) signals (such as motor control, solenoid control systems). Advantage DIA2240 has a common voltage of up to 110V, while most other competitors only have a common voltage of 80V. Features  AEC-Q100 qualified: − Device ambient temperature: -40°C ≤ TA ≤ 125°C − Device junction temperature:-40°C ≤ TJ ≤ 150°C  Enhanced PWM Rejection  Wide supply range: − Single power supply: 2.7 V to 5.5 V − Wide Common-Mode Range: –4 V to 110 V  Accuracy： − Low input offset voltage: ±5 µV − Offset drift: 50nV/ ̊C − Gain error: ±0.05% − Gain drift: 0.5 ppm/°C  Unity Gain Bandwidth: 400 KHz  Choice of gain： − DIA2240A1: 20 V/V − DIA2240A2: 50 V/V − DIA2240A3: 100 V/V − DIA2240A4: 200 V/V  Input voltage noise: 50 nV/√Hz  Low quiescent current：2mA Applications  Electronic Power Steering  Stability and Traction Control  Motor and Actuator Control  Solenoid and Valve Control

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Nanjing Chipnext Semiconductor Co., Ltd.

Product：Zero Drift & High Accuracy Operational Amplifiers CN855X

Recommended reasons： CN855X is a zero drift high-accuracy operational amplifier, with a power supply voltage range of 1.8V to 5.5V. The input offset voltage Vos is as low as 1uV, and the offset voltage temperature drift coefficient is as low as 0.005uV/℃, which is the best level in the industry. CN8551 is a point channel operational amplifier, CN8552 is a dual channel operational amplifier, and CN8554 is a four channel operational amplifier. Among them, CN8551S and CN8552S are operational amplifiers with enable shutdown function. The product includes various packaging types such as SOT/SOP/MSOP/TSOP/DFN, and is widely used in medical equipment, robotics, instrumentation, industrial control, precision sensors, and other fields.

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SG Micro Corp

Product：4MHz, Rail-to-Rail Output, Low Noise, High Voltage, Precision Operational Amplifiers SGM8277-1/2

Recommended reasons： The SGM8277-1/2 are a family of single and dual operational amplifiers, which are optimized for high voltage, high precision, low noise and low power operation. These devices can operate from 4V to 36V single supply or from ±2V to ±18V dual power supplies, and consume 1100μA quiescent current per amplifier. The input common mode voltage range is from (-VS) + 2V to (+VS) - 2V, and the output swing is rail-to-rail with heavy loads. The SGM8277-1/2 feature a low input offset voltage of ±10μV (TYP) and a low input bias current of ±10pA (TYP). They exhibit a gain-bandwidth product of 4MHz and a slew rate of 3.5V/μs. They are designed to provide optimal performance in low noise systems. These specifications make the operational amplifiers appropriate for various applications. The SGM8277-1 is available in Green SOIC-8 and TDFN-3×3-8L packages. The SGM8277-2 is available in Green SOIC-8, MSOP-8 and TDFN-3×3-8L packages. They are specified over the extended industrial temperature range (-40℃ to +125℃).

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Jiangsu Gtic Microelectronics Co., Ltd.

Product：GT852X Micro-Power,Low-Offset,Rail-to-Rail I/O CMOS Op Amps

Recommended reasons： The GT852X family of precision amplifiers offers state-of-the-art performance. Utilizing chopper-stabilized technology, the GT852X provides a low offset voltage (1.6 µV typical), near-zero drift over time and temperature, and low input voltage noise of 1.1 µVpp (0.1 Hz to 10 Hz). With a mere 21 µA of quiescent current, the GT852X achieves a 350 kHz bandwidth. These compact, high-precision operational amplifiers feature high input impedance and rail-to-rail input and output swing.The GT852X's low offset voltage, high precision, exceptional stability, low power consumption, and compact size make it ideal for sensitive medical equipment, such as ECG and EEG monitors. It is also well-suited for industrial sensors and control systems that require precise measurement and control, as well as portable devices and high-precision test and measurement equipment.

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Monolithic Power Systems (MPS)

Product：AX5689GRK Class-D Audio Controller

Recommended reasons： AX5689GRK is a super-fast ADC and digital feedback loop based Class-D audio controller chip. It supports four-channel class-D amplifier solutions in BTL configuration. In combination with different power stages, output power ranges from a few watts up to 1000 watts. Main applications include active monitor speakers, Hi-Fi streaming amplifiers, subwoofers and TV speakers etc. It brings ultra-low distortion within whole audio band, low noise floor, inaudible startup pops and high damping factors due to PFFB loop.

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Monolithic Power Systems (MPS)

Product：MDC91256 – 256-Channel 20b Current-Input Analog to Digital Convertor

Recommended reasons： MDC91256 is a single-chip 256-Channel 20b Current-Input Analog to Digital Converter. It offers the lowest Input Range (4pC) in industrial X-Ray Imaging and Detection Applications, highest channel count (256), and cutting-edge noise performance (20ppm RMS at 25pC with 20pF CSENSOR) as well as linearity performance (±0.025% INL at 4pC Range). MDC91256 also supports a high output data-rate for industrial imaging and detection applications (80Mbps) and offers new features such as data buffering to enable flexibility in applications and system-level designs.

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PI Semiconductor (Shenzhen) Co., Ltd.

Product：4 channel ELSFP laser driver PI12030

Recommended reasons： Co-packaged optics (CPO) is a new technology that provides a cost and power advantage over using DSP based pluggable optical modules in large data center and AI applications. Silicon photonic PICs are placed close to the switch IC such that the interface from the switch module to the front panel and beyond is fully optical. For thermal management and maintenance reasons, the CW laser sources are kept separate in ELSFP pluggable modules as defined by the OIF. Sixteen ELSFP modules, each with eight lasers, are used to support the latest 51.2T CPO switches. Each laser supports a high output power to enable splitting of the light into multiple channels within the PIC. Efficient biassing is hence critical. The PI12030 is a high-efficiency, high-current, 4-channel current DAC (IDAC) ideally suited to use within ELSFP and similar applications as high power CW Laser driver. It is unique in that it can deliver high laser bias currents with over 91% efficiency directly from the 3.3V module supply. The total solution, including all external components, is designed to fit within the ELSFP’s form-factor, thermal constraints, and electrical requirements. The PI12030 is highly integration with all setup and monitoring through SPI or I2C. An internal ADC monitors a wide range of internal and external information and the results, compared to programmable thresholds, can generate alarms and warnings. Fast shutdown is also provided. Transimpedance amplifiers (TIAs) are included which can be used to maintain the laser bias loop at constant optical power. Features • Four High-efficiency IDACs – 1.25A maximum output current per channel – Low Noise generation and High Noise Rejection • 20nA/sqrt(Hz) rms output noise density at 10kHz • 60B ACPSRR from 100kHz to 4MHz – > 91% total efficiency from the voltage supply input to each load • Internal 15ppm/°C Voltage Reference. • Overtemperature protection. • Digital Diagnostic reporting of all parameters for each channel – laser bias current, laser voltage, supply voltage, laser power (if MPD is connected), external temperature sensor, internal die temperature – Alarm/Warning level comparators • Flexible Slave Interface. – Both SPI and I2C interface supported. – Digital inputs support ELSFP, OSFP, QSFP-DD timing for Low Power Mode and Fast Disable – Digital outputs support Fault and Warning interrupts to the MCU • Small Solution Size for a given efficiency target – < 6.6 x 10.5 mm total PCB implementation size for > 90% efficiency and ultra-low-noise output. – 3.21 mm x 5.375mm WLCSP.

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Hangzhou Ruimeng Technology Co,Ltd

Product：36V High Precision, Zero Drift , Dual OpAmp MS8188-2

Recommended reasons： The MS8188-2 is a high-voltage, low-noise, high-precision, and zero-drift dual operational amplifier with a supply voltage range of 4-36V. Its primary features lie in exceptional DC accuracy and ultra-low noise levels, ensuring precise signal processing capabilities across various environments. The key specifications of this product are as follows: 1. Vos: Less than 3μV across the full temperature range, guaranteeing extremely high initial accuracy. 2. Vos Drift: Merely 0.01μV/°C over the entire temperature range, ensuring consistent performance within a wide temperature spectrum. 3. Noise: Below 9nV/√Hz, making it suitable for precision measurement scenarios sensitive to noise. 4. Low Chopper Ripple: Particularly crucial in precision measurement and signal conditioning applications, its low ripple characteristic enhances measurement accuracy and reliability. Compared to competitors, the MS8188 significantly reduces glitches on the harmonics of the chopping frequency. 5. PSRR: Exceeding 150 dB, providing outstanding power noise isolation capabilities. This operational amplifier finds broad application areas, including but not limited to sensor signal conditioning in industrial automation, data acquisition systems in scientific research instruments, and precision testing and measurement scenarios requiring high accuracy over a wide temperature range. Compared to competitors, the product's core advantages stem from its leading comprehensive performance indicators, particularly in ultra-high precision, low noise, low chopper ripple, and temperature stability, making it the preferred choice for designers seeking ultimate signal purity and reliability. Furthermore, its advanced manufacturing processes and design optimizations ensure low power consumption and a smaller package size while delivering high performance, further enhancing its applicability in modern electronic systems with high integration requirements.

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Jiangsu Runic Technology Co., Ltd.

Product：16 Bit, 400KSPS, 2.7V to 5.5V, Analog-to-Digital Converter

Recommended reasons： The RS1430B is a 16-bit, sampling, analog-to-digital (A/D) converter specified for a supply voltage range from 2.7V to 5.5V. It requires very little power, even when operating at the full data rate. At lower data rates, the high speed of the device enables it to spend most of its time in the power-down mode. For example, the average power dissipation is less than 162µW at a 10kHz data rate. The RS1430B offers excellent linearity and very low noise and distortion. It also features a synchronous serial (SPI/SSI-compatible) interface and a pseudo-differential input. The reference voltage can be set to any level within the range of 0.1V to VDD. Low power and small size make the RS1430B ideal for portable and battery-operated systems. It is also a perfect fit for remote data-acquisition modules, simultaneous multichannel systems, and isolated data acquisition. The RS1430B is available in an MSOP8 packag

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Texas Instruments

Product：ADS9219

Recommended reasons： TI’s ADS9219 is a two-channel, 18-bit, 20MSPS per channel successive approximation register (SAR) analog-to-digital converter (ADC) with integrated ADC driver and voltage reference in a 5 mm-by-5 mm QFN package. The device is the industry’s highest speed, highest precision two-channel ADC, and improves digital control-loop latency and accuracy while reducing design complexity. It achieves the industry’s highest sampling rate, 20MSPS, combined with the SAR architecture’s zero-cycle latency, provides 50ns latency to help achieve faster feedback and control in high-resolution control-loop test & measurement applications. The ADS9219 uses simultaneous sampling to monitor and control voltage and current in systems designed to accurately monitor and control vital electrical parameters, including current, voltage and power. For example in the following two use cases: • Automated semiconductor testers need high-channel density with high speed at a certain level of accuracy. Data acquisition equipment requires very high speeds to capture the signals, and high-end linear encoders that use sine and cosine control require accurate simultaneous sampling ADCs to enable precise control. The ADS9219 can help design engineers build top-tier systems with reduced size and improved operating accuracy, minimizing the required calibrations and downtime in end equipment. • High-speed data acquisition systems require a wide-bandwidth, alias-free precision signal chain to measure the outputs of high-frequency sensors, such as undamped accelerometers or wide-bandwidth current transducers. A high-speed precision ADC is required in order to capture fast transient signals accurately over a wide dynamic range. Data acquisition systems need an ADC around 20MSPS to accurately capture the wide variety of signals they may experience. The ADS9219 offers a 95dB signal-to-noise ratio at 20MSPS. An integrated ADC driver eases the bandwidth requirement of the front-end amplifier. This enhancement enables data acquisition systems to deliver both precision and wide bandwidth. Supplementary • Technical article: How to monitor automated testers and encoders

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