CAT5269YI50

Digital Potentiometers Overview

The CAT5269YI50 is a dual-channel digital potentiometer IC manufactured by onsemi. It features two independent potentiometers, each with 256 taps and a resistance value of 50 kOhms. The device utilizes a non-volatile memory architecture to retain wiper settings during power loss. Communication is handled via a 2-wire serial 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 an SOIC-24 package and supports linear taper characteristics across an industrial temperature range of -40°C to +85°C.

Digital Potentiometers Feature Summary

• Dual channel configuration with 256 taps per potentiometer
• Non-volatile memory retains wiper position after power cycle
• 2-wire serial interface for control and data transfer
• 50 kOhms resistance value with linear taper

Digital Potentiometers Applications

• Automated gain control in signal processing circuits
• Electronic volume or tone adjustment in audio equipment
• Calibration of sensor bias voltages
• Programmable voltage reference adjustment

Digital Potentiometers Procurement Notes

Verify the specific suffix 'YI' against official onsemi documentation to confirm package type and tape/reel specifications. Confirm availability status as some variants in this series may be discontinued. Ensure the 2-wire interface compatibility matches the host controller's serial protocol requirements before procurement.

Digital Potentiometers Selection Notes

Select this component when dual independent variable resistors are required in a compact surface-mount form factor. The 256-tap resolution offers finer adjustment granularity compared to lower-tap devices. Verify that the 50 kOhms resistance value aligns with the target circuit impedance and that the 2-wire interface is preferred over SPI or I2C alternatives.

Digital Potentiometers Part Context

This part belongs to the CAT5269 family of dual digital potentiometers. It serves as an electronic replacement for mechanical potentiometers in applications requiring remote or automated adjustment. The non-volatile feature distinguishes it from volatile counterparts like the CAT5169, ensuring setting retention without battery backup.

Digital Potentiometers Replacement Considerations

Direct pin-compatible replacements include other CAT5269 variants with different resistance values (e.g., CAT5269WI50) or interfaces. For single-channel needs, the CAT5261 series may be considered if interface differences are acceptable.