CAT5125TBI-10GT3

Digital Potentiometers Overview

The CAT5125TBI-10GT3 is a single-channel digital potentiometer IC from the CAT5125 series, manufactured by onsemi. It features a 10 kOhms resistance value with a linear taper and 32 tap positions for precise wiper control. The device operates within a supply voltage range of 2.7 V to 5.5 V and consumes a typical operating current of 25 uA. It utilizes a 2-wire serial interface for up/down control and employs volatile brush memory to retain position settings during power cycles. Packaged in a space-saving SOT-23-6 surface-mount format, it supports an industrial temperature range from -40°C to +85°C.

Digital Potentiometers Feature Summary

• Single digital potentiometer with 10 kOhms nominal resistance and linear taper
• 32-tap resolution controlled via a 2-wire serial (up/down) interface
• Low power consumption with 25 uA operating current at 2.7 V to 5.5 V supply
• Volatile wiper memory retains position only while powered

Digital Potentiometers Applications

• Volume control in audio signal paths
• Gain adjustment in instrumentation amplifiers
• Voltage reference trimming in measurement circuits
• LED brightness dimming control

Digital Potentiometers Procurement Notes

Verify component status as the CAT5125TBI-10GT3 is listed as obsolete or end-of-life by the manufacturer. Confirm availability through secondary distributors or surplus suppliers if immediate procurement is required. Ensure RoHS compliance documentation is obtained from the specific vendor source, as legacy stock may vary in certification details.

Digital Potentiometers Selection Notes

Select this component when a single-gang digital potentiometer with 10 kOhms resistance and 32 steps is required. The volatile memory characteristic necessitates re-initialization upon power-up if position retention across power cycles is needed. The SOT-23-6 package is suitable for compact PCB layouts requiring surface-mount assembly.

Digital Potentiometers Part Context

This part belongs to the CAT5125 family of 32-tap digital potentiometers. Variants within the series differ primarily in resistance values (10 kOhms, 50 kOhms, 100 kOhms) and packaging options. The 'TBI' suffix typically denotes the specific resistance value and package type combination within the onsemi product line.

Digital Potentiometers Replacement Considerations

Direct replacements include other CAT5125 variants with different resistance values such as CAT5125SDI-50GT3 (50 kOhms) or CAT5125SDI-100GT3 (100 kOhms), provided the circuit impedance requirements allow. Cross-series alternatives like the CAT5110 or CAT5124 offer similar functionality but may have different pin configurations or interface protocols.