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MCP4725A2T-E/CH

MCHPMCP4725A2T-E/CH

Microchip Technology
Digital to Analog Converters - DAC Sngl 12-B NV DAC w/ I2C interface
3,235 in stock
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Overview

The Microchip MCP4725 is a single-channel, 12-bit digital-to-analog converter (DAC) featuring an I2C interface and on-board nonvolatile EEPROM. It provides a buffered voltage output, allowing for direct connection to loads requiring up to 25mA. Its compact SOT-23-6 package makes it suitable for space-constrained applications.

Why Choose This Part

This DAC offers nonvolatile memory, allowing the last programmed output value to be retained across power cycles without host microcontroller intervention. Its rail-to-rail output and typical 6 us settling time provide good performance for a wide range of applications. The small SOT-23-6 package is ideal for compact designs.

Applications

Sensor Calibration and Trim
Precisely adjust sensor offsets or gain settings in embedded systems using the 12-bit resolution and I2C control, with settings stored in EEPROM.
Audio Volume Control
Implement digital volume control for low-power audio circuits or signal generators, leveraging the rail-to-rail buffered output.
DC Motor Speed Control
Generate a variable voltage reference for motor driver circuits, enabling fine-grained control of motor speed or position.
Programmable Voltage Sources
Create adjustable voltage references for analog front-ends, power supply margining, or testing purposes.
LED Dimming Control
Provide an analog control voltage for LED drivers, enabling smooth and precise dimming in lighting applications.

Key Specifications

Output Type Voltage - Buffered
Architecture String DAC
INL/DNL (LSB) +/-2, +/-0.2
Mounting Type Surface Mount
Settling Time 6us (Typ)
Data Interface I2C
Number of Bits 12
Package / Case SOT-23-6
Reference Type Supply
Differential Output No
Operating Temperature -40degC ~ 125degC
Supplier Device Package SOT-23-6
Number of D/A Converters 1
Voltage - Supply, Analog 2.7V ~ 5.5V
Voltage - Supply, Digital 2.7V ~ 5.5V

Getting Started

Microchip provides evaluation boards like the MCP4725 EV for quick prototyping. This DAC is controlled via the I2C interface, making it compatible with most microcontrollers including PIC, AVR, and ARM-based MCUs. Code examples for I2C communication and DAC control are widely available in application notes and community forums.

MCP4725 Family

Part NumberDifferenceStock
MCP4725A0T-E/CH 0T-E/CH 27,335
MCP4725A3T-E/CH 3T-E/CH 3,282
MCP4725EV EV 3
Also available as: MCP4725
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