X9241A Quad Digital Controlled Potentiometers (XDCP) Data Sheet

Category: Converters, Electronics, Intersil Corporation

Overview

The X9241A consists of four integrated digitally controlled potentiometers (XDCPs) on a single monolithic CMOS microcircuit. This quad digital potentiometer system utilizes a series of 63 resistive elements, offering 64 wiper tap points that can be adjusted through a 2-wire bus interface. Its key function is to allow user control over the wiper position within the array, thus enabling variable resistance tuning for various applications.

Memory and Data Handling

Each potentiometer within the X9241A is equipped with a volatile Wiper Counter Register (WCR) and four nonvolatile Data Registers (DR0 to DR3). These registers permit direct user read/write access, with the ability to store up to four wiper positions per potentiometer. At power-up, the device automatically recalls the contents of DR0 to the WCR, setting the initial wiper position accordingly.

Features

The device boasts a suite of features, including:

– Four potentiometers combined into a single package for efficiency and space-saving.

– A simple, user-friendly 2-wire serial interface to facilitate communication with the potentiometers.

– The capacity to store multiple wiper positions, enhancing the flexibility of device configuration.

– Compatibility with terminal voltages of +5V to -3.0V, accommodating various power supplies.

– A low power consumption rate, which is characteristic of CMOS devices.

– High reliability, with each register enduring over 100,000 data changes and retaining data for over 100 years.

Package and Resolution

The X9241A is offered in multiple packages including 20 Ld plastic DIP, 20 Ld TSSOP, and 20 Ld SOIC, with Pb-free options available to comply with RoHS standards. Its resolution is set at 64 taps for each of the four potentiometers, ensuring precise adjustment capabilities.

Applications

Applications range widely, enabling use as a three-terminal potentiometer or a two-terminal variable resistor. It can serve various functions from control, parameter adjustments, to signal processing in a diverse array of fields.

The cascade-capable resistor arrays provide a scale of resistive values, ranging from 2kΩ to 200kΩ when modules are combined.

Device Handling

A cautionary note highlights sensitivity to electrostatic discharge, advising adherence to proper IC Handling Procedures to prevent damage.

The X9241A is created by Intersil Americas Inc, with the XDCP technology trademarked by the same company. All rights pertaining to the device and documentation are reserved and protected under copyright laws.