DFRobot Gravity: GP8630N I2C/PWM DAC Module
DFRobot Gravity: GP8630N I2C/PWM DAC Module is a high-precision 16-bit digital-to-analog converter that converts I2C and PWM signals into ±10V, 0V to 10V, 0V to 5V, or 4mA to 20mA outputs. Features bidirectional voltage support for direct motor control and 1.2x over-range capability.
Based on the GP8630N chip, the DFRobot Gravity: GP8630N I2C/PWM DAC Module provides versatile signal generation for industrial and robotic applications, supporting multiple output modes. The 16-bit resolution delivers fine-grained control for sensitive equipment, making this module an essential tool for automated systems that require accurate analog inputs.
Features
- Supports ±10V symmetrical high-voltage output for bidirectional control
- Provides standard 4mA to 20mA current loop output for industrial sensors
- High 16-bit resolution with low full-scale error (±0.2%)
- Dual interface support: I2C and PWM input signals
- Compatible with 3.3V to 5V power supplies and Gravity interface
Applications
- Motor forward/reverse control
- Lighting brightness control
- Valve and pump control
- Signal generator
- Automation upgrades for small equipment
Specifications
- GP8630N chip model
- 3.3V to 5V operating voltage
- Power/communication interface: PH2.0 4-pin/3-pin
- Input signal: I2C/PWM
- Output signal:
- 0mA to 24mA current output range
- ±12V/0V to 6V/0V to 12V voltage output range
- One channel
- Resolution:
- 16-bit (I2C mode)
- 8-bit, 10-bit (PWM mode, selectable based on controller)
- Full‑scale error: ±0.2% (measured after fitting calibration)
- Value range:
- I2C mode: 0-65535 corresponds to ±12V, 0V to 6V, 0V to 12V, or 0mA to 24mA
- PWM mode: 0-255 or 0-1023 corresponds to the output range
- Physical dimensions
- PCB dimensions: 42mm x 32mm x 12.39mm
- 25mm mounting hole spacing
- 3.0mm mounting hole diameter
Kit Contents
- Gravity: GP8630N 1-channel I2C and PWM to ±10V/0V to 5V/0V to 10V/4mA to 20mA DAC module
- Gravity 4-pin I2C/UART sensor cable
- Gravity 3-pin analog sensor cable
Associated Module
DFRobot Gravity: GP8600 I2C/PWM DAC Module
16-bit DAC designed to convert I2C or PWM digital signals into standard industrial analog outputs.
Additional Resources
Layout
