X9251TS24Z

Digital Potentiometers Overview

The X9251TS24Z is a quad digitally controlled potentiometer (XDCP) manufactured by Renesas Electronics, formerly part of the Xicor and Intersil divisions. It integrates four independent 100 kOhm resistive elements within a single package, providing 256 discrete taps for precise resistance adjustment with linear taper characteristics. The device utilizes a serial SPI interface for control and features nonvolatile memory to retain wiper positions during power loss. Designed for surface-mount applications in SOIC-24 packages, it operates on supply voltages ranging from 2.7V to 5.5V, supporting both single and dual supply configurations.

Digital Potentiometers Feature Summary

• Quad configuration with four independent 100 kOhm potentiometers
• 256 tap resolution per element for fine adjustment
• Nonvolatile data registers store wiper positions automatically
• SPI serial control interface for digital programming

Digital Potentiometers Applications

• Industrial control systems requiring adjustable gain or bias
• Audio equipment for volume or tone control
• Programmable voltage references and level shifting circuits
• Calibration of sensor signals and measurement instruments

Digital Potentiometers Procurement Notes

Verify component authenticity through authorized distributors due to historical brand transitions involving Xicor, Intersil, and Renesas. Confirm RoHS compliance status and moisture sensitivity levels prior to assembly. Check for specific ordering suffixes that may indicate industrial temperature ranges or packaging variations. Ensure compatibility with existing PCB footprints for SOIC-24 packages.

Digital Potentiometers Selection Notes

Select this component when multiple independent variable resistors are needed in a compact form factor. The 100 kOhm value suits high-impedance signal paths. Verify that the system supports SPI communication protocols. Consider the 256-tap resolution against required adjustment granularity. Ensure operating temperatures align with the specified commercial range if industrial variants are not selected.

Digital Potentiometers Part Context

This component belongs to the X9250/X9251 series of low-power, low-noise digitally controlled potentiometers. The X9251 variant specifically denotes the 100 kOhm resistance value, distinguishing it from other resistance options in the family. The TS24 suffix indicates the SOIC-24 surface mount package type. These devices were originally developed by Xicor and later integrated into Intersil before becoming part of Renesas Electronics.

Digital Potentiometers Replacement Considerations

Direct substitutes include other members of the X9250 series family with compatible pinouts and specifications. Verify electrical parameters such as resistance tolerance, wiper resistance, and supply voltage ranges when cross-referencing with alternative digital potentiometer ICs.