CAT5132中文资料Digital Potentiometer (POT), 128-Tap, with I2C Interface数据手册ONSEMI规格书

描述 Description

The CAT5132 is a high voltage digital POT with non-volatile wiper setting memory, operating like a mechanical potentiometer. The tap points between the 127 equal resistive elements are connected to the wiper output via CMOS switches. The switches are controlled by a 7-bit Wiper Control Register (WCR). The wiper setting can be stored in a 7-bit non-volatile Data Register (DR). The WCR is accessed via the I²C serial bus.Upon power-up, the WCR is set to mid-scale (1000000). After the power supply is stable, the contents of the DR are transferred to the WCR and the wiper is returned to the memorized setting.The CAT5132 has two voltage supplies: VCC, the digital supply and V+, the analog supply. V+ can be much higher than VCC, allowing for 16V analog operations. The CAT5132 can be used as a potentiometer or as a two-terminal variable resistor.

特性 Features

• Single linear digital POT with 128 taps
• End-to-end resistance of 10 kΩ, 50 kΩ & 100 kΩ
• I²C interface
• Fast Up/Down wiper control mode
• Automatic wiper setting recall at power up
• Non-volatile wiper setting storage
• Digital Supply range (VCC): 2.7 V to 5.5 V
• Analog Supply range (V+): +8.0 V to +16 V
• Low Standby Current: 15 µA
• 100 Year wiper setting memory
• Industrial Temperature range: -40°C to +85°C

应用 Application

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

简介

CAT5132属于集成电路（IC）的数字电位计。由制造生产的CAT5132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。