256-position SPI Compatible Digital Potentiometer
CAT5172
256‐position SPI
Compatible Digital
Potentiometer (POT)
The CAT5172 is a 256-position digital linear taper pote...
Description
CAT5172
256‐position SPI
Compatible Digital
Potentiometer (POT)
The CAT5172 is a 256-position digital linear taper potentiometer ideally suited for replacing mechanical potentiometers and variable resistors. Like mechanical potentiometers, the CAT5172 has a resistive element, which can span VCC to Ground or float anywhere between the power supply rails.
Wiper settings are controlled through an SPI-compatible digital interface. Upon power-up, the wiper assumes a mid-span position and may be repositioned anytime after the power is stable.
The CAT5172 operates from 2.7 V to 5.5 V, while consuming less than 2 mA. This low operating current, combined with a small package footprint, make the CAT5172 ideal for battery-powered portable appliance.
Features
256-position End-to-End Resistance: 50 kW, 100 kW SPI 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 mA max Wide Opera...
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