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

The Gravity: GP8600 16-bit DAC module is a high-precision signal conversion tool designed to bridge the gap between digital microcontrollers and analog industrial equipment. By converting I2C or PWM input signals into stable 0-5V, 0-10V, or 4-20mA outputs, this digital-to-analog converter enables makers to control standard industrial hardware—such as lighting systems, inverters, and valves—using logic-level controllers like Arduino, ESP32, or Raspberry Pi. Unlike basic 8-bit DACs, this GP8600 converter offers a linearity error of just ±0.2% and supports cascading up to 8 devices, making the unit ideal for complex, multi-channel automation projects requiring fine-grained control.

Industrial-Grade Signal Conversion

The GP8600 DAC module excels in scenarios requiring compatibility with industrial standards. While many microcontrollers only output weak 3.3V analog signals, this converter boosts these logic signals to industry-standard 0-10V voltage or 4-20mA current loops. This capability allows the GP8600 to drive water pumps, servo motors, and heavy-duty lighting drivers directly. The inclusion of a 4-20mA current mode is particularly valuable for transmitting signals over long distances in noisy electrical environments without signal loss.

Flexible Control & Expansion

Designed for scalability, the GP8600 16-bit converter supports 8 adjustable I2C addresses, enabling the simultaneous control of up to 8 independent channels from a single microcontroller interface. This feature simplifies the wiring for multi-axis motor controllers or complex LED arrays. Additionally, the device accepts a wide 3.3V-5V power supply and utilizes the standard Gravity PH2.0 interface, ensuring plug-and-play compatibility with the DFRobot ecosystem and widespread platforms like STM32 and Raspberry Pi.

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

• Motor & Inverter Control: Precise 0-10V speed regulation for variable frequency drives (VFDs).
• Smart Lighting Systems: Flicker-free, high-resolution dimming for 0-10V LED drivers.
• Fluid Automation: Accurate position control for 4-20mA proportional valves and water pumps.
• Lab Signal Generation: Creating custom voltage waveforms for testing sensors and analog circuits.
• Device Retrofitting: Converting legacy analog appliances into smart, microcontroller-managed devices.

Basic Parameters

• Chip Model: GP8600
• Operating Voltage: 3.3V-5V
• Power/Communication Interface: PH2.0-4Pin/3Pin
• Input Signal: I2C / PWM
• Output Signal:
       Current Output Range: 0-20mA
       Voltage Output Range: 0-6V / 0-12V
• Number of Channels: 1 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 0-6V, 0-12V, or 0-20mA
       PWM Mode:0-255 corresponds to 0-6V, 0-12V, or 0-20mA, 0-1023 corresponds to 0-6V, 0-12V, or 0-20mA

Physical Dimensions

• PCB Dimensions: 38 × 32 × 12.39 mm
• Mounting Hole Spacing: 25mm
• Mounting Hole Diameter: 3.0 mm

• Gravity: GP8600 1-Channel I2C & PWM to 0-5V / 0-10V / 4-20mA DAC Module ×1
• Gravity-4Pin I2C/UART Sensor Cable ×1
• Gravity-3Pin Analog Sensor Cable ×1