CAT5401YI-25

Digital Potentiometers Overview

The CAT5401YI-25 is a quad digital potentiometer IC manufactured by onsemi. It features four independent potentiometers, each with 64 taps and a resistance value of 2.5 kOhms. The device utilizes a linear taper profile and incorporates non-volatile memory to retain wiper settings during power loss. Communication is handled via a serial SPI interface. It operates within a supply voltage range of 2.5 V to 6 V and consumes approximately 1 mA of operating current. The component is housed in a SOIC-24 surface-mount package.

Digital Potentiometers Feature Summary

• Quad configuration with 64-tap resolution per potentiometer
• Non-volatile memory retains wiper position after power cycle
• SPI serial interface for digital control
• Linear taper characteristic with 2.5 kOhms nominal resistance

Digital Potentiometers Applications

• Audio volume and tone control circuits
• Programmable gain amplifier adjustments
• Voltage reference trimming
• System calibration and offset adjustment

Digital Potentiometers Procurement Notes

Verify the specific suffix 'YI' against the manufacturer's official datasheet to confirm package type (SOIC-24) and temperature grade. Ensure the SPI interface compatibility matches the host controller. Check for end-of-life status or obsolescence notices from onsemi before finalizing procurement plans.

Digital Potentiometers Selection Notes

Select this component when a quad-channel digital potentiometer with non-volatile storage is required. The 2.5 kOhms resistance value suits low-power signal conditioning applications. Verify that the system voltage falls within the 2.5 V to 6 V operational range and that the SPI protocol aligns with the design architecture.

Digital Potentiometers Part Context

This part belongs to the CAT540x family of digital potentiometers, which are characterized by their non-volatile memory capabilities and multiple channel configurations. The CAT5401 variant specifically provides four independent channels, distinguishing it from dual-channel or single-channel counterparts in the same series.

Digital Potentiometers Replacement Considerations

Cross-reference with other CAT5401 variants such as CAT5401WI-25 for potential pin-compatible alternatives. Verify that any substitute maintains the same 64-tap resolution, non-volatile memory feature, and SPI interface compatibility.