描述 Description

The MCP41/424X devices are non-volatile, 7-bit (129 wiper steps) digital potentiometers with EEPROM and 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 WiperLock? Technology which allows the user unlimited reprogramming and locking of the wiper setting. It is useful for equipment that requires factory trimming or recalibration. The MCP41/42XX devices offer a variety of configurations simplifying design while minimizing cost, package size and pin count.

特性 Features

7-bit: 128 Resistors with Taps to VSS and VDD
SPI compatible interace
Automatic Recall of Potentiometer Wiper Settings
Resistance Values: 5kΩ, 5kΩ, 10kΩ, 50kΩ,100kΩ
Absolute (Rheostat): Ratiometric (Potentiometer): Low Wiper Resistance: 100Ω (typ.)
WiperLock? Technology to Secure the EEPROM
Low-Power Operation: 1μA Max Static Current
Wide Operating Voltage: 2.7V to 5.5V
Extended Temperature Range: -40°C to +125°C

簡介

MCP4141屬于集成電路（IC）的數(shù)字電位計。由制造生產(chǎn)的MCP4141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(diào)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。