描述 Description

The CAT5129 is a single digital POT designed as an electronic replacement for mechanical potentiometers and trim pots. Ideal for automated adjustments on high volume production lines, it is also well suited for applications where equipment requiring periodic adjustment is either difficult to access or located in a hazardous or remote environment.The CAT5129 contains a 32-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. The wiper setting, stored in nonvolatile memory, is not lost when the device is powered down and is automatically reinstated when power is returned. The wiper can be adjusted to test new system values without affecting the stored setting. Wiper-control of the CAT5129 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 device is used as a two-terminal variable resistor. Digital POTs bring variability and programmability to a wide variety of applications including control, parameter adjustments, and signal processing.

特性 Features

32-position Linear Taper Potentiometer
Non-volatile EEPROM Wiper Storage
Low Standby Current
Single supply operation: 2.5 V - 5.5 V
Increment Up/Down Serial Interface
Resistance Values: 10 kΩ, 50 kΩ, and 100 kΩ

應(yīng)用 Application

Automated Product CalibrationRemote Aontrol AdjustmentsOffset, Gain and Zero ControlTamper-proof CalibrationsContrast, Brightness and Volume ControlsMotor Controls and Feedback SystemsProgrammable Analog Functions
Industrial Equipment

簡介

CAT5129屬于集成電路（IC）的數(shù)字電位計。由制造生產(chǎn)的CAT5129數(shù)字電位計數(shù)字電位器是一系列集成電路器件，可提供類似于傳統(tǒng)機械電位器或變阻器的可調(diào)節(jié)電阻，但通過電子信號而非機械輸入來進行控制。雖然這些器件的電阻可耗散的電能相對有限，但其電子控制能力有助于小型化、自動化和遠程控制信號級模擬電路，而這些電路本來可能會使用機械電位器。