Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Device type | 256-position digital potentiometer |
| End-to-end resistance | 50 kΩ |
| Interface | I²C-compatible |
| Resolution | 8 bit / 256 positions |
| Power-on state | Midscale |
| Supply range | 2.7 V to 5.5 V |
| Maximum supply current | 2 µA |
| I²C clock | Up to 400 kHz |
| Package | SOT-23-8 |
| Temperature range | −40°C to +85°C |
Product Overview
CAT5171TBI-50GT3 is the 50 kΩ version of onsemi’s CAT5171 digital potentiometer. The wiper is controlled over I²C and powers up at midscale, allowing firmware-controlled trimming without a mechanical potentiometer.
An AD0 address pin allows two CAT5171 devices to share the same I²C bus. The exact 50GT3 order code identifies the 50 kΩ resistance option in Pb-free SOT-23-8 tape-and-reel packaging.
Technical Specifications
| Parameter | Confirmed Information |
|---|---|
| Resistance | 50 kΩ |
| Positions | 256 |
| Resolution | 8 bit |
| Supply | 2.7 V to 5.5 V |
| I²C clock | 400 kHz |
| Supply current | 2 µA maximum |
| Resistance tolerance | ±20% class |
| Temperature coefficient | 100 ppm/°C class |
| Package | SOT-23-8 |
Digital-Potentiometer Considerations
A, B and W analog terminals must remain within the device supply rails. The wiper setting is volatile and returns to midscale after power-up, so systems requiring a retained setting must reload it from host nonvolatile memory.
Manufacturer Resource
Quality & Verification Support
Exact 50 kΩ code, SOT-23-8 package, GT3 reel format, marking and lot/date information can be reviewed before shipment.
Request a Quote
Request CAT5171TBI-50GT3 exactly and include quantity, date-code and traceability requirements.
For an onsemi device with a different control method, compare CAT5115ZI-10-GT3 with an Up/Down interface rather than this CAT5171’s I²C interface. Resistance, package and interface differences prevent assuming direct substitution. Browse the digital potentiometer category for more options.
