Block Diagram
Power and Size Optimized
Amplifier – AD8235 - 40µA, low power small size in amp
ADC – AD4001 - 16-Bit, 2 MSPS/1 MSPS, precision, differential SAR ADCs
Voltage Reference – ADR3425 - Micropower, high-accuracy 2.5V voltage reference
Isolation – ADuM1441 - Micropower quad-channel digital isolator, default high (3/1 channel directionality)
Noise Optimized
Amplifier – AD8237 - Micropower, zero drift, true rail-to-rail instrumentation amplifier
ADC – AD4001 - 16-Bit, 2 MSPS/1 MSPS, precision, differential SAR ADCs
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 Single Channel Voltage, Current and Biosignal Measurement-Noise Optimized
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 – AD4001 - 16-Bit, 2 MSPS/1 MSPS, precision, differential SAR ADCs
Voltage Reference – ADR3425 - Micropower, high-accuracy 2.5V voltage reference
Isolation – ADuM1441 - Micropower quad-channel digital isolator, default high (3/1 channel directionality)
Additional Resources
- The Easy Steps to Calculate Sampling Clock Jitter for Isolated, Precision High Speed DAQs
- Ask the Applications Engineer—11: How Good Must a Voltage Reference Be?
- Understanding and Eliminating 1/f Noise
- How to Stay Out of Deep Water when Designing with Bridge Sensors
- Vital Sign Technologies: Condition-Based Monitoring of the Human Body
- Flexible ECG Front-End IC Serves Ultralow Power IoT Edge Node Signal Processing Designs

