CAT5126: 32-Tap One-Time Digital Potentiometer (DPP™)
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The CAT5126 is a digital programmable potentiometer. The wiper position is controlled with a simple 2-wire digital interface. This digital potentiometer is unique in that it has an optional one-time programmable feature that either sets the wiper's position upon power-on to a user-defined value, or the wiper can be set and the interface also disabled to prevent further adjustment.

The CAT5126 has an end-to-end resistance of 10 kΩ, 50 kΩ, and 100 kΩ. All CAT5126 devices have 32 wiper positions and operate from a single 2.5 V to 5.5 V supply.

The CAT5126 is available in 8-pin TDFN and MSOP packages. Each device is guaranteed over the industrial temperature range of -40°C to +85°C.