CAT5401WI50

Digital Potentiometers Overview

The CAT5401WI-50-T1 is a quad digitally programmable potentiometer (DPP) manufactured by onsemi. It features four independent potentiometers, each with 64 taps for resistance adjustment. The device utilizes a non-volatile memory architecture to retain wiper settings when power is removed. Communication is handled via an SPI-compatible serial interface. The unit operates within a supply voltage range of 2.5 V to 6 V and supports PCB mounting in surface-mount packages.

Digital Potentiometers Feature Summary

• Quad configuration with 64 taps per potentiometer
• Non-volatile memory retains wiper position after power loss
• SPI-compatible digital control interface
• Operates on 2.5 V to 6 V supply voltage

Digital Potentiometers Applications

• Audio volume and tone control circuits
• Programmable gain amplifier biasing
• Calibration of sensor signal paths
• Adjustable reference voltage generation

Digital Potentiometers Procurement Notes

Verify the specific suffix (e.g., -T1) against the manufacturer's current datasheet to confirm package type and tape/reel specifications. Confirm availability status as legacy or end-of-life products may have limited distribution channels. Ensure the selected variant matches the required resistance tolerance and temperature coefficient for the target application environment.

Digital Potentiometers Selection Notes

Select this component when a multi-channel digital potentiometer with persistent memory settings is required. The 64-tap resolution provides sufficient granularity for many analog control applications without requiring high-resolution DACs. Verify that the system logic levels are compatible with the SPI interface and that the operating temperature range meets the environmental requirements.

Digital Potentiometers Part Context

This part belongs to the CAT5401 family of non-volatile digital potentiometers. Variants within this series differ primarily in resistance values (e.g., 5kΩ, 10kΩ, 50kΩ) and package options. The WI-50 designation indicates a 50 kΩ resistance value with a specific industrial-grade temperature rating and SOIC package configuration.

Digital Potentiometers Replacement Considerations

Direct replacements include other CAT5401 variants with different resistance values if the circuit allows. Cross-reference with other quad DPPs from manufacturers like Microchip or Analog Devices, ensuring pin compatibility and SPI protocol alignment. Verify that substitute parts offer equivalent non-volatile memory retention capabilities.