Gravity: I2C 12-Bit DAC Module

SKU: DFR0552 Brand: DFRobot

DFRobot Gravity 12-Bit I2C DAC is a small and easy-to-use 12-bit digital-to-analog converter with EEPROM. It can accurately convert the digital value to corresponding...

$8.10 AUD, inc GST

$7.36 AUD, exc GST

Available with a lead time
Expect dispatch between Dec 02 and Dec 05

Quantity Discounts:

10-25 $7.15 (exc GST)
25+ $6.99 (exc GST)

Introduction

DFRobot Gravity 12-Bit I2C DAC is a small and easy-to-use 12-bit digital-to-analog converter with EEPROM. It can accurately convert the digital value to a corresponding analog voltage signal, which is useful in may creative projects and automatic control systems. Although an analog voltage signal can be generated by PWM with traditional controllers such as Arduino and Raspberry Pi, such signal is ROUGH and NOT ACCURATE. To obtain a steady and nice analog voltage signal, the DAC is the best candidate. In addition to be applied in automatic control systems, the DAC module can be used to serve as a function generator to generate a sine wave, triangular wave and even arbitrary waveform (DFRobot provide a library to generate low-frequency sin and triangular wave with just a few parameters).

The module employs a 12-bit DAC MCP4725. It requires no external reference voltage (DAC reference is driven from VCC directly), supports 3.3V~5V wide input voltage and has a I2C address selection switch (two address 0x60 and 0x61 are available, which support maximum two modules in cascade). The EEPROM can retain the DAC input while power-off and resume the DAC output upon power-on.

FEATURES

12-bit high accuracy DAC
On-board EEPROM, retain DAC input while power-off
Gravity I2C interface, plug and play. XH2.54 4P reserved for expansion
Wide voltage input, compatible with 3.3V and 5V controllers
Small size and easy to install

APPLICATIONS

Sensor Calibration
Automatic Control Systems
Function Generator

Specification

Input Voltage (VCC): 3.3V~5.0V
Output Voltage: 0 ~ VCC
Resolution: 12-bit
Working Current: <0.2 mA
Interface: Gravity I2C (logic level: 0-3.3V)
Dimension: 27.0mm*22.0mm
Weight: 13.8g

Documents

Parts List

Gravity: I2C 12-Bit DAC Module x1
XH2.54-4P Header x1
Gravity-4P I2C/ UART Sensor Wire x1

Product Comments

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