CAT5419WI-50

Digital Potentiometers Overview

The CAT5419WI-50 is a dual digital potentiometer IC from onsemi, featuring two independent 64-tap resistive arrays with a nominal resistance of 50 kOhms. It utilizes a 2-wire serial control interface for wiper adjustment and includes non-volatile memory to retain settings during power loss. The device operates within a supply voltage range of 2.5 V to 6 V and supports a temperature coefficient of 300 ppm/°C with a tolerance of 20%. Packaged in a 24-pin SOIC format, it serves as an electronic replacement for mechanical potentiometers in applications requiring automated or remote adjustments.

Digital Potentiometers Feature Summary

• Dual-channel architecture with 64 positions per channel
• Non-volatile memory retains wiper settings after power-down
• 2-wire serial control interface for simplified connectivity
• Operates on a single 2.5 V to 6 V supply

Digital Potentiometers Applications

• Automated gain control in signal processing circuits
• Remote calibration of measurement equipment
• Electronic volume and tone controls in audio systems
• Voltage reference trimming in instrumentation

Digital Potentiometers Procurement Notes

Verify the specific suffix 'WI-50' against official datasheets to confirm package type (SOIC) and resistance value (50k). Confirm end-of-life status, as related models in this series may be obsolete. Ensure compatibility with existing PCB footprints for 24-pin SOIC packages before procurement.

Digital Potentiometers Selection Notes

Select this component when a dual-channel configuration with non-volatile storage is required. Compare against the CAT5419YI-00-T2 if an I2C interface is preferred over the 2-wire serial interface. Verify that the 50 kOhm resistance value aligns with the target circuit impedance requirements.

Digital Potentiometers Part Context

This part belongs to the CAT5419 family of dual digital potentiometers. It shares functional similarities with the CAT5411 series but differs in its serial communication protocol. The 'W' designation typically indicates the SOIC package variant, while 'I' denotes industrial temperature ranges.

Digital Potentiometers Replacement Considerations

Direct substitutes include other CAT5419 variants with matching interfaces. Cross-reference with CAT5411BI-50-TE13 only if SPI interface compatibility can be adapted. Verify pinout compatibility for any alternative digital potentiometer ICs.