DFRobot - Gravity: I2C 4-20mA DAC Module (Arduino Compatible)

This is an I2C DAC module that outputs 0–25mA current. It provides accurate 4–20mA current output after calibration, making it suitable for controlling industrial devices such as motors, inverters, valves, and pumps via Arduino or other microcontrollers.

Designed to convert digital signals into standard 4–20mA industrial control signals, this module serves as a bridge between microcontroller platforms and industrial systems.

With I2C communication and provided sample code, users can easily control the output current by setting digital values, enabling quick integration into automation and control projects.

This DAC module requires an external 18–24V power supply for proper 4–20mA loop operation.

Function Indication

Hardware Connection

Click here to get Selection Guide of DAC Modules

Selection Guide

Product Name

Gravity: I2C 12-Bit DAC Module

Gravity: 2-Channel I2C DAC Module (0-10V)

Gravity: I2C 4-20mA DAC Module (Arduino Compatible)

Gravity: GP8211 I2C 15-bit DAC Module (0-5V/10V)

Gravity: GP8101S 1-Channel PWM to 0-5V/10V DAC Module

Gravity: GP8501 2-Channel PWM to 0-2.5V/VCC DAC Module

Gravity: GP8413 2-Channel 15-bit I2C to 0-5V/10V DAC Module

Gravity: GP8512: 1-Channel 15bit I2C to 0-2.5V/VCC DAC Module

Gravity: GP8630N I2C/PWM to ±10V / 4-20mA DAC Module (16-bit)

Gravity: GP8503 2-Channel 12bit I2C to 0-2.5V/VCC DAC Module

Gravity: GP8600 1-Channel I2C & PWM to 0-5V / 0-10V / 4-20mA DAC Module (16-bit)

Figure

SKU

DFR0552

DFR0971

DFR0972

DFR1071

DFR1036

DFR1037

DFR1073

DFR1035

DFR1230

DFR1034

DFR1229

Description

I2C 12-Bit DAC

2-Ch 0-10V DAC

4-20mA Current DAC

1-Ch 15-Bit (0-10V)

1-Ch PWM (0-10V)

2-Ch PWM (0-2.5V)

2-Ch 15-Bit (0-10V)

1-Ch 15-Bit (0-2.5V)

Hi-Res ±10V / 4-20mA

2-Ch 12-Bit (0-2.5V)

Hi-Res 0-10V / 4-20mA

Comm.

I2C

I2C

I2C

I2C

PWM

PWM

I2C

I2C

I2C/PWM

I2C

I2C/PWM

Res.

12-bit

12-bit

12-bit

15-bit

8-bit

8-bit

15-bit

15-bit

16-bit

12-bit

16-bit

Channels

1

2

1

1

1

2

2

1

1

2

1

Output Range

0~VCC

0-10V / 0-5V

4-20mA (0-25mA)

0-10V / 0-5V

0-10V / 0-5V

0-2.5V / 0-VCC

0-10V / 0-5V

0-2.5V / 0-VCC

±10V, 0-10V, 4-20mA

0-2.5V / 0-VCC

0-10V, 0-10V, 4-20mA

Chip

MCP4725

GP8403

GP8302

GP8211S

GP8101S

GP8501

GP8413

GP8512

GP8630N

GP8503

GP8600

Key Features

Classic model, with EEPROM, cost-effective

Dual-channel industrial voltage, cascade up to 16 devices

Industrial current loop, requires 18-24V power

High precision (0.01%), single channel

PWM driven, easy to use, industrial voltage

PWM driven, dual channel, low voltage control

High precision, dual channel, industrial voltage

High precision, single channel, low voltage control

Flagship, supports bipolar (negative voltage) output

Medium precision, dual channel, low voltage control

16-bit ultra-high precision, multi-function all-in-one

Add to Cart

• 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

• Function signal generator
• Automatic controller for lighting or fountain
• Automatic and quick transformation of small equipment
• Electromechanical equipment debugging
• Transformation of small test device

• 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

• Gravity: I2C 4-20mA DAC Module (Arduino Compatible) x1
• Gravity I2C/UART Sensor Connector x1