描述 Description

The MCP41/425X devices?are volatile, 8-bit (257 wiper steps) digital potentiometers?with an SPI compatible interface. The MCP41/42XX family is available with end-to-end resistor values of 5KΩ, 10KΩ, 50kΩ and 100KΩ. These devices offer a variety of configurations simplifying design while minimizing cost, package size and pin count.

特性 Features

8-bit:256 Resistors with Taps to VSS and VDD
SPI compatible interace
Automatic Recall of Potentiometer Wiper Settings
Resistance Values: 5kΩ, 10kΩ, 50kΩ, 100kΩ
Absolute (Rheostat): Ratiometric (Potentiometer): Low Wiper Resistance: 100Ω (typ.)
Low-Power Operation: 1μA Max Static Current
Wide Operating Voltage: 1.8V to 5.5V
Extended Temperature Range: -40°C to +125°C

簡介

MCP4251屬于集成電路（IC）的數(shù)字電位計。由制造生產(chǎn)的MCP4251數(shù)字電位計數(shù)字電位器是一系列集成電路器件，可提供類似于傳統(tǒng)機械電位器或變阻器的可調節(jié)電阻，但通過電子信號而非機械輸入來進行控制。雖然這些器件的電阻可耗散的電能相對有限，但其電子控制能力有助于小型化、自動化和遠程控制信號級模擬電路，而這些電路本來可能會使用機械電位器。