In the intelligent era of the Internet of Everything, electronic devices are pursuing slimmer designs and more powerful computing capabilities; sensors and control systems in new energy vehicles have extremely stringent requirements for signal accuracy; high-end scientific research instruments are constantly pushing the boundaries of measurement to the extreme. The core driving force behind all this is inseparable from a key component in the signal chain — the operational amplifier. However, traditional operational amplifiers are facing unprecedented challenges: How can weak signals be transmitted clearly in high-noise environments? How can high-speed data streams ensure zero distortion? How can performance remain stable under extreme temperatures? As the tide of information surges forward, the "nerve endings" of devices need a more precise "signal commander."
AWINIC's AWS796X2 series of ultra-high-precision, low-noise CMOS operational amplifiers includes two product lines: AWS79632 and AWS79652. These amplifiers boast excellent performance characteristics such as ultra-low input offset voltage, low-voltage operation, rail-to-rail input and output, exceptional bandwidth and slew rate, as well as ultra-low distortion. The operational amplifiers are unity-gain stable and feature ultra-low input bias current, making them highly suitable for applications such as high-precision signal sampling and sensors.
Key Parameters of AWS796X2
Picture 1: AWS796X2 Package
Main Applications of AWS796X2
Ultra-low Input Offset Voltage
Input offset voltage (VOS) refers to the additional voltage that needs to be compensated at the input to make the output of the operational amplifier zero. The magnitude of VOS affects the accuracy and error of the entire system's output. With a maximum input offset voltage of 8.5µV, the AWS796X2 is highly suitable for high-precision applications.
Picture 2: Curve of Output Voltage vs. Input Voltage
Ultra-low Equivalent Input Noise
Equivalent input noise, also known as 1/f noise, is a non-periodic signal that cannot be calibrated. Therefore, noise must be considered for high-precision applications. 1/f noise is the main noise factor at low frequencies and can cause significant output voltage drift when the circuit gain is high. Thanks to its chopper architecture, the AWS796X2 can suppress 1/f noise, making it an ideal choice for DC high-precision applications. In the 0.1-10Hz frequency range, the amplifier's voltage noise is only 250nVpp @ VCC=5V. The figure below shows that the output of the AWS796X2 remains stable when used for ADC data acquisition.
Picture 3: Stable Output of AWS796X2 in ADC Data Acquisition
AWINIC specializes in the design of high-performance digital-analog mixed-signal, power management, and signal chain ICs, with mastery of core chip design technologies. The AWINIC operational amplifier product family will continue to launch a variety of high-quality products with high voltage, high precision, and zero-drift performance, committed to providing customers with comprehensive products and solutions.
AWINIC Operational Amplifier Selection Guide
Operational Amplifier Selection Guide 1
Operational Amplifier Selection Guide 2
About AWINIC
Leading Digital-Analog IC Provider in China
Customer needs are the sole reason for AWINIC's existence | A high-caliber team is AWINIC's greatest asset
Shanghai AWINIC Electronics Technology Co., Ltd., founded in 2008, specializes in the design of high-performance digital-analog mixed-signal, power management, and signal chain ICs. It successfully listed on the Sci-Tech Innovation Board of the Shanghai Stock Exchange in August 2021, with the stock code 688798.
AWINIC has accumulated 42 product subcategories and over 2,000 product models, with product performance and quality reaching industry-leading levels. Its products are widely used in consumer electronics, industrial internet, and automotive markets, including smartphones, tablets, laptops, smart wearables, smart speakers, smart home appliances, mobile payments, the Internet of Things (IoT), AI education, smart toys, servers, new energy, robots, drones, security, and automotive electronics.
In 2024, the company's R&D investment reached 510 million RMB, accounting for nearly 17% of its revenue. Technical personnel account for over 74% of the workforce, with a total of 649 domestic and foreign patents, 125 software copyrights, and 595 integrated circuit layout registrations.
AWINIC has been awarded qualifications and honors such as the National Enterprise Technology Center, Single Champion Enterprise in Audio Manufacturing, National Intellectual Property Advantage Enterprise, "National High-Tech Zone Listed Company Innovation Top 100", Shanghai Innovative Enterprise Headquarters, Shanghai Quality Gold Award, Shanghai Municipal Design Innovation Center, Shanghai Intelligent Audio Chip Technology Innovation Center, and Shanghai Hardcore Technology Enterprise Top 100.
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