X9420YS16-2.7

Digital Potentiometers Overview

The X9420YS16-2.7 is a single digitally controlled potentiometer (XDCP) manufactured by Renesas Electronics Corporation, formerly Intersil. It features a 2.5 kΩ resistor array with 64 tap positions and operates on an SPI serial interface. The device supports dual power supplies: VCC from 2.7V to 5.5V, and analog supplies V+ and V- ranging from ±2.7V to ±5.5V. It includes one volatile Wiper Counter Register and four nonvolatile Data Registers for wiper position storage. The component is housed in a 16-lead SOIC package.

Digital Potentiometers Feature Summary

• Single XDCP with 2.5 kΩ resistance and 64 discrete taps
• SPI serial interface with register-oriented read/write/transfer commands
• Nonvolatile memory storing up to four wiper positions per potentiometer
• Low standby current of less than 1 µA

Digital Potentiometers Applications

• Control and parameter adjustments
• Signal processing circuits
• Voltage divider configurations
• Variable resistor applications

Digital Potentiometers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm voltage limits and temperature range. The '-2.7' suffix indicates a minimum supply voltage of 2.7V. Confirm RoHS compliance status as availability varies by manufacturing batch and region. Check for 'Not Recommended for New Designs' notices and identify valid substitute part numbers if required.

Digital Potentiometers Selection Notes

Select this component when a single-channel digital potentiometer with low-voltage operation (down to 2.7V) is required. Ensure the system utilizes an SPI interface compatible with the device's clock and data protocols. Verify that the 2.5 kΩ resistance value fits the application's impedance requirements and that the 64-tap resolution provides sufficient granularity for the intended control loop.

Digital Potentiometers Part Context

This component belongs to the X9420 series of single digitally controlled potentiometers. The series offers variations in resistance values (2.5 kΩ or 10 kΩ), package types (SOIC or TSSOP), and operating temperature ranges. The X9420YS16-2.7 specifically denotes the 2.5 kΩ variant in a 16-lead SOIC package with extended low-voltage support.

Digital Potentiometers Replacement Considerations

Public datasheets list ISL22416, ISL22419, ISL95311, and ISL95711 as possible substitute products. Verify pin compatibility and electrical specifications before substitution.