CAT5122SDGI-50-26645T3

Digital Potentiometers Overview

The CAT5122SDGI-50 is a single-channel digital potentiometer IC from onsemi, featuring 50 kOhms resistance and 16 taps. It operates on a 2-wire serial interface with volatile wiper memory. The device supports a supply voltage range of 2.7 V to 5.5 V and consumes 25 uA operating current. It utilizes a linear taper and functions within a temperature range of -40 C to +85 C. The component is housed in a compact SC-70-5 surface-mount package.

Digital Potentiometers Feature Summary

• Single-channel digital potentiometer with 50 kOhms total resistance and 16 discrete tap positions.
• Controlled via a standard 2-wire serial up/down interface for simplified system integration.
• Volatile wiper position storage retains settings only during active power supply.
• Low power consumption of 25 uA with an operating voltage range of 2.7 V to 5.5 V.

Digital Potentiometers Applications

• Volume control circuits in audio equipment
• Gain adjustment stages in signal conditioning systems
• Voltage reference trimming in measurement devices

Digital Potentiometers Procurement Notes

Verify the specific suffix 'SDGI' against official manufacturer documentation to confirm pinout compatibility and electrical tolerances. Confirm availability status as distribution channels may list this part as obsolete or end-of-life. Ensure the volatile memory characteristic aligns with application requirements for power-down state retention.

Digital Potentiometers Selection Notes

Select this component when a single-channel variable resistor is required with precise digital control. The 50 kOhms value suits moderate impedance applications. Verify that the volatile memory type meets system needs, as wiper positions reset upon power loss. The SC-70-5 package is suitable for space-constrained PCB layouts requiring surface-mount technology.

Digital Potentiometers Part Context

This part belongs to the CAT5122 family of 16-tap digital potentiometers. Variants within this series typically differ by resistance values (e.g., 10 kOhms) and package types. The SDGI designation indicates specific manufacturing lot or tape-and-reel specifications defined by onsemi for this particular ordering code.

Digital Potentiometers Replacement Considerations

Direct replacements include other CAT5122 variants such as CAT5122SDI-50GT3. Cross-model substitution requires verifying identical interface protocols and physical footprint dimensions to ensure board compatibility without redesign.