onsemi | CAT5171TBI-50GT3

The CAT5171TBI-50GT3 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. It can be programmed to reset the wiper position to midscale or to go to a shutdown state during operation.

Features:

• 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

Applications:

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