CAT5111数据手册集成电路（IC）的数字电位计规格书PDF

描述 Description

The CAT5111 is a single digital POT designed as an electronic replacement for mechanical potentiometers. Ideal for automated adjustments on high volume production lines, they are also well suited for applications where equipment requiring periodic adjustment is either difficult to access or located in a hazardous or remote environment.The CAT5111 contains a 100-tap series resistor array connected between two terminals RH and RL. An up/down counter and decoder that are controlled by three input pins, determines which tap is connected to the wiper, RWB. The CAT5111 wiper is buffered by an op amp that operates rail to rail. The wiper setting, stored in non-volatile memory, is not lost when the device is powered down and is automatically recalled when power is returned. The wiper can be adjusted to test new system values without effecting the stored setting. Wiper control of the CAT5111 is accomplished with three input control pins, CS, U/D, and INC. The INC input increments the wiper in the direction which is determined by the logic state of the U/D input. The CS input is used to select the device and also store the wiper position prior to power down.The digital potentiometer can be used as a buffered voltage divider. For applications where the potentiometer is used as a 2-terminal variable resistor, please refer to the CAT5113. The buffered wiper of the CAT5111 is not compatible with that application.

特性 Features

• 100-position linear taper potentiometer
• Non-volatile EEPROM wiper storage; buffered wiper
• Low power CMOS technology
• Single supply operation: 2.5 V-6.0 V
• Increment up/down serial interface
• Resistance values: 10 kΩ, 50 kΩ and 100 kΩ

应用 Application

• Automated product calibration
• Remote control adjustments
• Offset, gain and zero control
• Tamper-proof calibrations
• Contrast, brightness and volume controls
• Motor controls and feedback systems
• Programmable analog functions
• Industrial Equipment

简介

CAT5111属于集成电路（IC）的数字电位计。由制造生产的CAT5111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。