DPP, Volatile Single 256 Taps I²C
Описание продукта
The CAT5171 is a 256-position digitally programmable linear taper potentiometer ideally suited for replacing mechanical potentiometers and variable resistors.

The wiper settings are controlled through an I2C-compatible digital interface. Upon power-up, the wiper assumes a midscale position and may be repositioned anytime after the power is stable. The device can be programmed to reset the wiper position to midscale or to go to a shutdown state during operation. An address input pin, AD0, allows the connection of two devices onto the same I2C bus.

The CAT5171 operates from 2.7 V to 5.5 V, while consuming less than 2 µA. This low operating current, combined with a small package footprint, makes the CAT5171 ideal for battery-powered portable applications.

The CAT5171, designed as a pin for pin replacement for the AD5245, is offered in the 8-lead SOT23 package and operates over the -40°C to +85°C industrial temperature range.
Отличительные черты


* 256-position

* End-to-End Resistance: 50 kΩ, 100 kΩ

* I2C Compatible Interface

* Power-on Preset to Midscale

* Single Supply 2.7 V to 5.5 V

* Low Temperature Coefficient 100 ppm/°C

* Low Power, IDD 2 µA max

* Wide Operating Temperature -40°C to +85°C

* RoHS-compliant SOT-23 8-Lead (2.9 mm x 3 mm) Package

Применения

* Potentiometer Replacement
* Transducer Adjustment of Pressure, Temperature, Position, Chemical, and Optical Sensors
* RF Amplifier Biasing
* Gain Control and Offset Adjustment