ISL22416UFU10Z

Digital Potentiometers Overview

The ISL22416UFU10Z is a single digitally controlled potentiometer (XDCP) integrating non-volatile memory on a monolithic CMOS IC. It features 128 resistor taps and an SPI serial interface for wiper control. The device offers a total resistance of 50kΩ with a typical wiper resistance of 70Ω at 3.3V. Operating voltage ranges from 2.7V to 5.5V, with a maximum shutdown current of 5µA. It includes volatile Wiper Register (WR) and non-volatile Initial Value Register (IVR) for power-up recall. The component is housed in a 10-lead MSOP package and supports extended industrial temperature operation.

Digital Potentiometers Feature Summary

• 128-tap digitally controlled potentiometer with SPI interface
• Non-volatile storage of wiper position with 50-year data retention
• Shutdown mode with maximum current consumption of 5µA
• Endurance rating of 1,000,000 data changes per bit

Digital Potentiometers Applications

• Control and parameter adjustments
• Signal processing circuits
• Voltage divider applications requiring programmable resistance

Digital Potentiometers Procurement Notes

Verify the specific suffix 'UFU10Z' corresponds to the 50kΩ resistance option and 10-lead MSOP package. Confirm the manufacturer source, as Intersil products are now managed by Renesas Electronics. Ensure the datasheet revision matches the required design specifications, noting that this part may be marked as not recommended for new designs.

Digital Potentiometers Selection Notes

Select the ISL22416UFU10Z when a 50kΩ total resistance is required. For a 10kΩ option, choose the ISL22416WFU10Z instead. Verify that the application requires an SPI-compatible master controller. Check if the 128-tap resolution meets the precision requirements for the intended signal processing or control loop.

Digital Potentiometers Part Context

This component belongs to the ISL22416 family of single XDCPs. It is functionally similar to the ISL22316 but includes integrated non-volatile memory for wiper position retention. The 'U' designation indicates the 50kΩ resistance variant, while 'W' denotes 10kΩ. The 'FU' indicates the 10-lead MSOP package format.

Digital Potentiometers Replacement Considerations

The datasheet identifies the ISL22316 as a possible substitute product. Verify compatibility regarding pinout, electrical characteristics, and software interface protocols before substitution.