CAT5171TBI-50GT3

The CA5171 is a 256- position digital 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 5.5V, while consuming less than 2μA. 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℃ to +85℃ industrial temperature range.

Applications

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

Key features

• 256 - position
• End - to - End Resistance: 50kΩ, 100kΩ
• I²C Compatible Interface
• Power - on Preset to Midscale
• Single Supply 2.7V to 5.5V
• Low Temperature Coefficient 100ppm / °C
• Low Power, IDD 2μA max
• Wide Operating Temperature - 40°C to +85°C
• SOT - 23 8 - lead (2.9mm×3mm) Package
• These Devices are Pb - Free, Halogen Free/BFR Free and are RoHS Compliant