MCP4821-E/MC

$2.59

Description：IC DAC 12BIT V-OUT 8DFN
Series：-

SKU:9cce26a65b28 Category: Digital to Analog Converters (DAC) Brand: Microchip Technology

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Product introduction

Product Detailed Parameters

Description：IC DAC 12BIT V-OUT 8DFN
Series：-
Mfr：Microchip Technology
Package：Tube
Number of Bits：12
Number of D/A Converters：1
Settling Time：4.5µs (Typ)
Output Type：Voltage - Buffered
Differential Output：No
Data Interface：SPI
Reference Type：Internal
Voltage - Supply, Analog：2.7V ~ 5.5V
Voltage - Supply, Digital：2.7V ~ 5.5V
INL/DNL (LSB)：±4, ±0.25
Architecture：String DAC
Operating Temperature：-40°C ~ 125°C
Package / Case：8-VFDFN Exposed Pad
Supplier Device Package：8-DFN (2x3)
Mounting Type：Surface Mount
Grade：-
Qualification：-

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MCP4821-E/MC

Overview

The MCP4821-E/MC is a single-channel, 12-bit buffered voltage output Digital-to-Analog Converter (DAC) from Microchip Technology. It operates on a single supply voltage ranging from 2.7V to 5.5V and features an internal 2.048V voltage reference. The device utilizes a resistive string architecture with SPI compatibility supporting up to 20 MHz clock speeds. Key electrical parameters include a typical settling time of 4.5 µs, INL error of ±2 LSB, and DNL error of ±0.25 LSB. It offers selectable unity or 2x gain outputs and operates within an extended temperature range of -40°C to +125°C.

Feature Summary

Features a rail-to-rail buffered analog output amplifier for high accuracy and low noise performance.
Includes double-buffered registers allowing synchronous DAC updates via the LDAC pin.
Supports hardware shutdown mode to minimize power consumption by disabling internal circuits.

Applications

Set point or offset trimming in industrial control systems
Sensor calibration for temperature, pressure, and humidity signals
Precision selectable voltage reference generation
Portable instrumentation requiring battery-powered operation

Procurement Notes

Verify the specific suffix 'MC' corresponds to the 8-lead DFN package configuration before ordering. Confirm that the application environment remains within the specified -40°C to +125°C operating temperature range to ensure compliance with datasheet specifications. Ensure proper PCB layout practices are followed for the exposed thermal pad connection to maintain thermal performance.

Selection Notes

Select this component when a single-channel, 12-bit resolution is required with an integrated voltage reference. Compare against the MCP4921 if an external reference is preferred or the MCP4822 if dual-channel capability is necessary. Consider the 8-lead DFN package constraints regarding thermal dissipation and board space availability during the design phase.

Part Context

This part belongs to the MCP4801/4811/4821 family of single-channel DACs. It shares architectural similarities with the MCP4801 (8-bit) and MCP4811 (10-bit), differing primarily in resolution. It is distinct from the MCP49xx series which utilizes external voltage references rather than internal ones.