X9015US8I

Digital Potentiometers Overview

The Intersil X9015US8I is a low noise, low power volatile digitally controlled potentiometer (XDCP). It features a single potentiometer with 32 taps and a total resistance of 50 kOhms. The device operates on a 3-wire serial interface using CS, U/D, and INC inputs to control the wiper position. Power supply voltage ranges from 2.7V to 5V, with a maximum operating current of 50 µA and standby current of 1 µA. The component is housed in an SOIC-8 package and supports linear taper characteristics.

Digital Potentiometers Feature Summary

• Single digitally controlled potentiometer with 32 taps
• 3-wire up/down serial interface for wiper control
• Low power consumption: 50 µA operating current, 1 µA standby
• Volatile memory retains settings only during power

Digital Potentiometers Applications

• Digitally controlled variable resistors for setting analog values
• Low noise signal conditioning circuits
• Power supply voltage adjustment

Digital Potentiometers Part Context

The X9015US8I belongs to the X9015 series of volatile XDCPs manufactured by Intersil, now part of Renesas Electronics. This specific variant uses the SOIC-8 package and offers a 50 kOhm resistance value. It is distinct from non-volatile variants like the X9315, which retain wiper positions after power loss.

Digital Potentiometers Replacement Considerations

Direct replacements must match the volatile memory type, 32-tap resolution, and 50 kOhm resistance. Non-volatile alternatives such as the X9315 series require firmware adjustments to handle power-up initialization, as they do not retain state automatically.