MCP4342中文资料7-Bit Quad Digital POT with NVM and SPI数据手册Microchip规格书

描述 Description

The MCP434X devices are non-volatile, 7-bit (129 wiper steps) digital potentiometers with EEPROM and an SPI compatible interface. The MCP434X 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 MCP434X 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 Steps)
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
Automatic Recall of Saved Wiper Setting
WiperLock™ Technology
SPI serial interface
Brown-out reset protection (1.5V typical)
Serial Interface Inactive current (2.5 uA typical)
High-Voltage Tolerant Digital Inputs: Up to 12.5V
Supports Split Rail Applications
2.7V to 5.5V - Device CharacteristicsSpecified
1.8V to 5.5V - Device Operation
2 MHz (typical) for 5.0 kΩ device
Extended temperature range (-40°C to +125°C)

简介

MCP4342属于集成电路（IC）的数字电位计。由制造生产的MCP4342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。