Block Diagram
Power and Size Optimized
Amplifier – AD8235 40µA, low power small size in amp.
ADC – AD7682/AD7689 - AD7682 is a 16-Bit, 4-channel, 250 kSPS PulSAR ADC
AD7689 is a 16-Bit, 8-channel, 250 kSPS PulSAR ADC.
Voltage Reference (Integrated) – ADR3425 micropower, high-accuracy 2.5V voltage reference.
Isolation – ADuM1441 micropower quad-channel digital isolator, default high (3/1 channel directionality).
Power Solutions for Multichannel Voltage, Current and Biosignal Measurement-Power and Size Optimized
Noise Optimized
Amplifier – AD8237 micropower, zero drift, true rail-to-rail instrumentation amplifier.
ADC – AD4696 16-Bit, 16-channel, 1 MSPS, easy drive muxed SAR ADC.
Voltage Reference – ADR3425 micropower, high-accuracy 2.5 V voltage reference.
Isolation – ADuM1441 micropower quad-channel digital isolator, default high (3/1 channel directionality).
Power Solutions for Multichannel Voltage, Current and Biosignal Measurement-Noise Optimized
Biosignal Size Optimized and AC Coupled
Biosignal – Size Optimized and AC Coupled
Amplifier – AD8233/AD8232 the AD8233 is a 50µA, 2mm × 1.7mm WLCSP, low noise, heart rate monitor for wearable products. The AD8232 is a 170µA, 4mm × 4 mm LFCSP, low noise, heart rate monitor for wearable products.
ADC – AD7682/AD7689 - AD7682 is a 16-Bit, 4-channel, 250 kSPS PulSAR ADC AD7689 is a 16-Bit, 8-channel, 250 kSPS PulSAR ADC.
Voltage Reference – ADR3425 micropower, high-accuracy 2.5V voltage reference.
Isolation – ADuM1441 - micropower quad-channel digital isolator, default high (3/1 channel directionality).
Configurable, Integrated, Power & Density Optimized
Instrumentation Amplifier – AD8235/AD8237 - AD8235 is a 40μA micropower instrumentation amplifier in the WLCSP package.
AD8237 is a micropower, zero drift, true rail-to-rail instrumentation amplifier.
Operational Amplifier – ADA4505-4 - 10µA, RRIO, zero input crossover distortion quad op-amp.
ADC – AD4130-8 – 32μA, ultra-low power, 24-bit sigma-delta ADC with integrated PGA and FIFO.
Voltage Reference – ADR3425 - Micro-power, high-accuracy 2.5V voltage reference.
Isolation – ADUM1441 - Micropower quad-channel digital isolator, default high (3/1 channel directionality).
Additional Resources
- Exploring Different SAR ADC Analog Input Architectures
- Integrated Multiplexed Input ADC Solution Alleviates Power Dissipation and Increased Channel Density Challenges
- How to Stay Out of Deep Water when Designing with Bridge Sensors
- Understanding and Eliminating 1/f Noise
- Isolated SPI Bus for Distinct System Requirements
- Vital Sign Technologies: Condition-Based Monitoring of the Human Body
- Flexible ECG Front-End IC Serves Ultralow Power IoT Edge Node Signal Processing Designs

