X9418WV24

Digital Potentiometers Overview

The X9418WV24 is a dual digitally controlled potentiometer (XDCP) featuring two independent 64-tap resistor arrays within a single package. It utilizes a 2-wire serial interface for wiper position control and data storage. The device supports end-to-end resistance values of 2.5 kΩ or 10 kΩ, with a resolution of 64 taps per potentiometer. Power supplies include VCC, V+, and V-, each operating between 2.7V and 5.5V. Each potentiometer includes one volatile Wiper Counter Register and four nonvolatile Data Registers for storing up to four distinct wiper positions. The component is available in 24-lead TSSOP packages.

Digital Potentiometers Feature Summary

• Dual 64-tap digitally controlled potentiometers with 2.5 kΩ or 10 kΩ resistance options
• 2-wire serial interface supporting direct read/write/transfer of wiper positions
• Nonvolatile memory storing up to four wiper positions per potentiometer
• Low power CMOS technology with standby current less than 1 µA

Digital Potentiometers Applications

• Control and parameter adjustments
• Signal processing circuits
• Voltage regulator offset adjustment
• Comparator hysteresis setting

Digital Potentiometers Procurement Notes

Verify the specific resistance value (2.5 kΩ or 10 kΩ) and temperature range required for the design. Confirm package availability as the component may be subject to limited supply status. Ensure the ordering suffix matches the desired RoHS compliance and tape/reel configuration if applicable.

Digital Potentiometers Selection Notes

Select the variant based on the required resistance tolerance and operating temperature range. The commercial grade operates from 0°C to +70°C, while industrial grades support -40°C to +85°C. Ensure the system voltage rails align with the 2.7V to 5.5V supply limits for VCC, V+, and V-. Verify that the 2-wire serial bus timing requirements are met by the host controller.

Digital Potentiometers Part Context

The X9418 belongs to the XDCP™ family of digitally controlled potentiometers. It integrates two potentiometers on a monolithic CMOS microcircuit, sharing a common serial interface. The device replaces mechanical potentiometers in applications requiring digital control and nonvolatile memory retention of settings.

Digital Potentiometers Replacement Considerations

The datasheet explicitly states "NO RECOMMENDED REPLACEMENT" for this component. Engineers should consult technical support for potential alternatives.