X9261 Dual Digitally-Controlled Potentiometers Datasheet

Category: Converters, Electronics, Intersil Corporation

Overview of X9261 Dual Digitally-Controlled Potentiometers

The X9261 by Intersil is a monolithic CMOS integrated circuit featuring two separate digitally controlled potentiometers (XDCPs). Each potentiometer consists of 256 resistor taps, offering a resolution of 0.4%. These devices are designed to be utilized in a variety of applications such as control, parameter adjustment, and signal processing.

Main Features

The dual potentiometers can be interacted with through an SPI serial interface for reading, writing, and transferring operations. They operate on a single supply voltage ranging from 2.7V to 5.5V and feature 100Ω typical wiper resistance at 5V. Importantly, the X9261 has four nonvolatile data registers for each potentiometer, allowing multiple wiper positions to be stored and recalled on power-up. The device boasts a low standby current (< 5µA max), 100-year data retention, and supports over 100,000 data changes per bit per register, signifying good endurance.

Variations and Packaging

Available versions differ in total end-to-end resistance with 50kΩ and 100kΩ options provided. Their temperature range varies from 0 to 70°C or -40 to 85°C, making them suitable for diverse conditions. The X9261’s package types include 24 Ld SOIC and 24 Ld TSSOP, with both standard and Pb-free (RoHS compliant) versions available for environmental considerations.

Additional Information and Caution

The integrated circuit features a functional diagram highlighting the power-on recall, the SPI Bus Interface, and the structure of the resistor array. Users are cautioned that these devices are sensitive to electrostatic discharge and require handling in compliance with proper IC handling procedures. Furthermore, the datasheet provides detailed ordering information concerning part numbers, voltage limits, temperature ranges, and packaging dimensions. To accommodate various manufacturing needs, Intersil’s Pb-free products are compatible with both SnPb and Pb-free soldering operations.

Trademark and Copyright

Intersil and XDCP are registered trademarks of Intersil Americas Inc, and the copyright for the datasheet is held by them. Intersil promises a Pb-Free Plus Anneal available option for those seeking RoHS compliant components.