CAT5401WI-25-T1

Digital Potentiometers Overview

The CAT5401WI-25-T1 is a quad digital potentiometer IC manufactured by onsemi. It features four independent potentiometers, each with 64 taps for resistance adjustment. The device utilizes non-volatile memory to retain the wiper setting even when power is lost. It operates via an SPI serial interface and supports a supply voltage range of 2.5 V to 6 V. The component is housed in a surface-mount package and is designed for applications requiring digitally programmable resistance with persistent configuration data.

Digital Potentiometers Feature Summary

• Quad configuration with 64 taps per potentiometer
• Non-volatile memory retains settings without power
• SPI serial interface for control
• Operating voltage range of 2.5 V to 6 V

Digital Potentiometers Applications

• Digitally adjustable gain control in audio circuits
• Programmable biasing networks in sensor interfaces
• Calibration systems requiring persistent resistance values

Digital Potentiometers Part Context

This part belongs to the CAT5401 series of digital potentiometers from onsemi. The suffix 'WI' indicates a specific package variant, while '25' denotes the nominal resistance value of 25 kOhms. The '-T1' suffix specifies the tape and reel packaging format. This series is characterized by its non-volatile storage capability and linear taper characteristics.

Digital Potentiometers Replacement Considerations

The CAT5401WI-25-T1 is listed as obsolete. Direct substitutes within the same family include variants with different resistance values or pin counts, such as the CAT5401YI-25-T2 (single pot, 100 taps) or CAT5401YI-50-T2. Designers should verify interface compatibility and tap resolution when selecting alternatives.