CAT5261WI-00

Digital Potentiometers Overview

The CAT5261WI-00 is a dual-channel digital potentiometer IC manufactured by onsemi. It features two independent potentiometers, each with 256 taps and a resistance value of 100 kOhms. The device utilizes a non-volatile memory architecture to retain wiper settings without power. Communication is managed via an SPI interface. It operates within a supply voltage range of 2.5 V to 6 V and draws approximately 1 mA of operating current. The component is housed in a 24-pin SOIC package and supports a linear taper profile with a temperature coefficient of 300 PPM/C.

Digital Potentiometers Feature Summary

• Dual channel configuration with 256 taps per potentiometer
• Non-volatile memory retains wiper position after power loss
• SPI serial interface for digital control
• 100 kOhms nominal resistance with 20% tolerance

Digital Potentiometers Applications

• Automated gain control in signal processing circuits
• Digital trimming of analog sensor offsets
• Programmable voltage reference adjustment
• Calibration of measurement instrumentation

Digital Potentiometers Procurement Notes

Verify the specific suffix (e.g., T1) for packaging requirements such as reel or cut tape quantities. Confirm end-of-life status and lead times with authorized distributors, as availability may be limited. Ensure RoHS compliance documentation matches the specific manufacturing batch date code.

Digital Potentiometers Selection Notes

Select this model when dual-channel control is required with high resolution (256 steps). Compare against the CAT5261YI variant if a TSSOP package is preferred over SOIC. Verify that the 100 kOhms resistance value aligns with the target circuit impedance requirements and that the SPI interface is compatible with the host microcontroller.

Digital Potentiometers Part Context

This component belongs to the CAT5261 family of dual digital potentiometers. Variants within the series differ primarily by package type (SOIC vs. TSSOP) and terminal finish. The WI designation typically indicates a specific pin configuration and package style distinct from other family members like the CAT5261YI.

Digital Potentiometers Replacement Considerations

Direct replacements include the CAT5261YI-00 for equivalent electrical performance in a TSSOP-24 package. Cross-reference with other dual-channel SPI digital potentiometers if package constraints require alternative footprints.