Gravity: I2C 4-20mA DAC Module

This is an I2C DAC module that outputs 0-25mA current. It offers a more accurate 4-20mA current output after calibration, which can be used with most 4-20mA devices on markets such as motors, inverters, valves, pumps, etc., by Arduino programming.

Function Indication

Hardware Connection

Features

• 0-25mA output, more accurate current within 4-20mA available after calibration
• Gravity interface, I2C communication
• High accuracy, 0.2% linearity error
• 18-24V power supply

Specifications

• Chip Type: GP8302
• Input Signal Range: 12Bit, 0x000-0xFFF (0-25mA)
• Input I2C Signal High Level: 2.7V-5V
• Power Supply: 18V-24V (24V recommended)
• Accuracy: 0.5% before calibration, 0.2% after calibration
• Power Consumption: ＜5mA
• Start-up Time: ＜2ms
• Operating Temperature: -40°C to 125°C
• Load Resistance: Maximum 450Ω load capacity for 18V power supply, maximum 750Ω for 24V
• Output Current: 0-25mA
• I2C Address: 0x58

Resources

• Product wiki
• Schematics
• Dimensions
• 2D_CAD File
• 3D Model File
• Datasheet

Package Contents

• 1x Gravity: I2C 4-20mA DAC Module (Arduino Compatible)
• 1x Gravity I2C/UART Sensor Connector