CAT5121数据手册集成电路（IC）的数字电位计规格书PDF

描述 Description

CAT5121 linear-taper digital POT performs the same function as a mechanical potentiometer or a variable resistor. This device consists of a fixed resistor and a wiper contact with 32-tap points that are digitally controlled through a 2-wire up/down serial interface.The CAT5121 is configured as a variable resistor. See Pin Configurations for part functionality.Three resistance values are available: 10 kΩ , 50 kΩ and 100 kΩ.

特性 Features

• 0.3 µA Ultra-low supply current
• Single-supply operation: 2.7 V to 5.5 V
• Glitchless switching between resistor taps
• Power-on reset to midscale
• 2-Wire up/down serial interface
• Resistance values: 10 kΩ, 50 kΩ and 100 kΩ

应用 Application

• LCD screen adjustment
• Volume control
• Mechanical potentiometer replacement
• Gain adjustment
• Line impedance matching
• Industrial Equipment

简介

CAT5121属于集成电路（IC）的数字电位计。由制造生产的CAT5121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。