描述 Description

The MCP42050 is a single-channel, 8-bit digital potentiometer features 50kΩ end-to-end resistance value with an SPI serial interface. The wiper position varies linearly and is controlled via the SPI interface. The MCP42050 has outstanding AC and DC characteristics, and consumes <1 μA during static operation. Applications for the MCP42050 digital potentiometer include audio equipment (volume and tone controls), servo-motor control, battery charging and control, communications (line impedance matching), power supplies, instrumentation (gain, offset adjust), LCD contrast control and programmable filters. The MCP42050 is available in 8-pin PDIP and SOIC packages.

特性 Features

Two?Resistor Networks
Potentiometer or Rheostat configuration options
8-bit:?255 Resistors (256 Steps)
50kΩ
Zero-Scale to Full-Scale Wiper operation
INL: 1LSB (max)
DNL: 1LSB (max)
SPI Compatible Serial interface
Standby?current: 1uA (max)
Wide Operating Voltage: 2.7V to 5.5V
Wide Bandwidth (-3dB) Operation: 280 MHz (typ.)
Extended temperature range: -40°C to +125°C

簡介

MCP42050屬于集成電路（IC）的數(shù)字電位計。由制造生產的MCP42050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。