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MCP4822-E/P

MCHPMCP4822-E/P

Microchip Technology
Dual 12-bit DAC option if two channels are required in the design.
Active977 in stock

Overview

The MCP4822-E/P is a dual-channel 12-bit voltage output digital-to-analog converter (DAC) that utilizes an internal voltage reference for simplified circuit design. It features a buffered string DAC architecture and communicates over a standard SPI interface, operating across a wide supply range of 2.7V to 5.5V.

Why Choose This Part

This DAC is an excellent choice for prototyping due to its 8-pin PDIP package which is breadboard-friendly. It eliminates the need for an external reference while maintaining a fast 4.5us settling time and low power consumption, making it highly efficient for space-constrained designs.

Applications

Set Point and Offset Trimming
Adjusting analog signal levels in precision circuits to compensate for component tolerances.
Sensor Calibration
Providing accurate reference voltages for calibrating analog sensor outputs in industrial environments.
Portable Instrumentation
Utilizing the 6uA shutdown mode to extend battery life in handheld measurement devices.
Optical Communication Control
Providing precise bias voltages and calibration for optical transceiver modules.

Key Specifications

Output Type Voltage - Buffered
Architecture String DAC
INL/DNL (LSB) +/-4, +/-0.25
Mounting Type Through Hole
Settling Time 4.5us (Typ)
Data Interface SPI
Number of Bits 12
Package / Case 8-DIP (0.300", 7.62mm)
Reference Type Internal
Differential Output No
Operating Temperature -40degC ~ 125degC
Supplier Device Package 8-PDIP
Number of D/A Converters 2
Voltage - Supply, Analog 2.7V ~ 5.5V
Voltage - Supply, Digital 2.7V ~ 5.5V

Getting Started

To begin development, interface the MCP4822-E/P with any microcontroller using a 3-wire SPI bus and a chip select (CS) line. Since it uses an internal 2.048V reference, ensure your software logic accounts for the selectable gain (1x or 2x) to set the full-scale output range.

Also Consider

MCP4821-E/P MCHPMicrochip Technology - A single-channel version of this 12-bit DAC if the second output is not required, reducing cost.
MCP4922-E/P MCHPMicrochip Technology - An alternative dual 12-bit DAC that requires an external voltage reference for applications needing custom output ranges.
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