Product Description:
The NAU7802 24-bit ADC module is a high-resolution differential analog-to-digital converter designed for precise measurement applications. With built-in gain and calibration circuitry, it is especially well-suited for use with strain gauges, load cells, and Wheatstone bridge sensors.
This breakout board makes it easy to connect 4-wire sensors, providing excitation voltage and reading differential outputs with 24-bit accuracy. Thanks to its STEMMA QT / Qwiic connectors, it integrates seamlessly into I²C-based projects without soldering, while terminal blocks offer direct wiring for sensor inputs.
Key Features:
24-bit differential ADC (NAU7802 chip) for ultra-precise sensor measurements
Ideal for Wheatstone bridge sensors: strain gauges, load cells, and similar devices
Configurable Excitation Voltage: 2.4V to 4.0V reference output
Sensor Connections:
E+ / E–: Excitation voltage for sensor power
A+ / A–: Differential signal inputs
B+ / B–: Secondary bridge measurement option
I²C Interface: Simple communication with microcontrollers
STEMMA QT / Qwiic Connectors: Plug-and-play I²C integration
Supported Libraries: Arduino, CircuitPython, and Python drivers available
Fixed I²C Address: Multiplexer required for multiple sensors on the same bus
Technical Specifications:
Chipset: NAU7802
Resolution: 24-bit differential ADC
Excitation Voltage: 2.4V to 4.0V (generated by NAU7802)
Interface: I²C (STEMMA QT / Qwiic compatible)
Inputs: Supports one or two Wheatstone bridge sensors
Power Supply: 3.3V – 5V
Dimensions: Compact breakout form factor
Applications:
Strain gauge and force measurement
Load cell interfacing
Pressure sensors and torque sensors
Precision data acquisition
IoT and industrial monitoring systems
Package Includes:
