MCP4331中文资料7-Bit Quad Digital POT w/SPI数据手册Microchip规格书

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

简介

MCP4331属于集成电路（IC）的数字电位计。由制造生产的MCP4331数字电位计数字电位器是一系列集成电路器件，可提供类似于传统机械电位器或变阻器的可调节电阻，但通过电子信号而非机械输入来进行控制。虽然这些器件的电阻可耗散的电能相对有限，但其电子控制能力有助于小型化、自动化和远程控制信号级模拟电路，而这些电路本来可能会使用机械电位器。