ISL22414WFU10Z

Digital Potentiometers Overview

The ISL22414WFU10Z is a single Digitally Controlled Potentiometer (XDCP) featuring 256 taps and a 10 kΩ total resistance. It integrates control logic, volatile Wiper Register (WR), non-volatile Initial Value Register (IVR), and 14 General Purpose non-volatile registers on a monolithic CMOS IC. The device utilizes an SPI serial interface for wiper position control and memory access. It supports dual power supplies ranging from 2.25V to 5.5V (VCC) and -2.25V to -5.5V (V-). Key electrical characteristics include a typical wiper resistance of 70Ω at 1mA, standby current under 2.5µA, and operation within the extended industrial temperature range of -40°C to +125°C.

Digital Potentiometers Feature Summary

• Single DCP with 256 resistor taps and 10 kΩ nominal resistance
• SPI serial interface supporting daisy-chain configuration
• Non-volatile EEPROM storage for wiper position and 14 general-purpose registers
• Dual supply capability: VCC 2.25V–5.5V and V- -2.25V to -5.5V

Digital Potentiometers Applications

• Control and parameter adjustment circuits
• Signal processing applications requiring digital potentiometry
• Bipolar range applications utilizing dual power supplies

Digital Potentiometers Procurement Notes

Verify component authenticity through authorized channels. Confirm RoHS compliance and Pb-free status as specified in the datasheet. Ensure handling procedures account for ESD sensitivity, noting the Human Body Model rating of 3kV. Check for lead time variations if sourcing from secondary distributors.

Digital Potentiometers Selection Notes

Select this part for applications requiring a 10 kΩ digitally adjustable resistance. Choose alternative suffixes (U or T) if 50 kΩ or 100 kΩ resistance values are needed. Consider the military grade variant (WMU) if operation below -40°C is required. Verify that the SPI interface mode 0 compatibility aligns with the host controller.

Digital Potentiometers Part Context

This component belongs to the ISL22414 family of low noise, low power XDCPs manufactured by Renesas Electronics Corporation (formerly Intersil). It is packaged in a 10-lead MSOP format. The specific 'W' suffix denotes the 10 kΩ resistance option, while 'FU10Z' indicates the package type, temperature range, and RoHS compliance.

Digital Potentiometers Replacement Considerations

The datasheet explicitly states the ISL22414WFU10Z is not recommended for new designs. The recommended replacement is the ISL22414TFU10Z-TK, which offers a 100 kΩ resistance option instead of 10 kΩ.