Supply original CAT5171TBI-00GT3, Data Acquisition - Digital Potentiometers, by ON Semiconductor

256-Position I2C Compatible Digital Potentiometer
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.
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) PackageTypical Applications
• Potentiometer Replacement
• Transducer Adjustment of Pressure, Temperature, Position, Chemical, and Optical Sensors
• RF Amplifier Biasing
• Gain Control and Offset Adjustment