CAT5251WI-50-T1

Digital Potentiometers Overview

The CAT5251WI-50-T1 is a quad digital potentiometer IC manufactured by onsemi, featuring four independent channels with non-volatile memory. Each channel provides 256 adjustable taps for precise resistance control within a 50 kOhm range and ±20% tolerance. The device utilizes an SPI serial interface for data communication and operates on a supply voltage between 2.5 V and 6 V. It maintains settings without power and functions reliably across an industrial temperature range of -40°C to +85°C in a 24-SOIC surface-mount package.

Digital Potentiometers Feature Summary

• Quad configuration with 256 taps per channel
• Non-volatile wiper memory retains settings after power loss
• SPI digital interface for control
• Linear taper characteristic

Digital Potentiometers Applications

• Programmable gain amplifiers
• Voltage reference adjustment
• Digital volume control systems
• Sensor calibration circuits

Digital Potentiometers Procurement Notes

Verify component authenticity through authorized distribution channels due to obsolete status. Confirm RoHS compliance and moisture sensitivity levels prior to assembly. Review the official datasheet for specific handling requirements and storage conditions to ensure reliability during manufacturing processes.

Digital Potentiometers Selection Notes

Select this component when a quad-channel solution with high resolution (256 steps) is required. Ensure the system supports SPI communication protocols. Verify that the 50 kOhm resistance value aligns with circuit impedance requirements and that the 2.5 V to 6 V operating voltage matches the system power rails.

Digital Potentiometers Part Context

This part belongs to the CAT5251 series of linear-taper digital potentiometers. It shares architectural similarities with other members like the CAT5251YI-50-T2 but differs in interface type and packaging. The 'WI' suffix indicates the specific package and temperature grade configuration defined by the manufacturer.

Digital Potentiometers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate alternative quad digital potentiometers with SPI interfaces and similar tap counts if direct replacement is necessary.