描述 Description

The MCP433X devices?are quad-channel, volatile, 7-bit (129 wiper steps) digital potentiometers?with an SPI compatible interface. The MCP433X 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

Quad Resistor Network
Potentiometer or Rheostat Configuration Options
7-bit: 128 Resistors (129 Taps)
5kΩ
10kΩ
50kΩ
100kΩ
Zero Scale to Full Scale Wiper Operation
Low Wiper Resistance: 75?Ω (typical)
Absolute (Rheostat): 50 ppm typical (0°C to 70°C)
Ratiometric (Potentiometer): 15 ppm typical
High-Speed Read/Writes to wiper registers
Resistor Network Terminal Disconnect Feature via Terminal Control (TCON) Register
Reset Input Pin
Brown-out Reset Protection (1.5V typical)
Serial Interface Inactive Current (2.5 μA typical)
High-Voltage Tolerant Digital Inputs: Up to 12.5V
Supports Split Rail Applications
2.7V to 5.5V – Device Characteristics Specified
1.8V to 5.5V – Device Operation
2 MHz (typical) for 5.0 kΩ device
Extended Temperature Range (-40°C to +125°C)
AEC-Q100 Grade 1 quarlified

簡介

MCP4331屬于集成電路（IC）的數(shù)字電位計。由制造生產(chǎn)的MCP4331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。