Analog Products

Overview

The X9250 integrates 4 digitally controlled potentiometers (XDCP) on a monolithic CMOS integrated circuit. The digitally controlled potentiometer is implemented using 255 resistive elements in a series array. Between each element are tap points connected to the wiper terminal through switches. The position of the wiper on the array is controlled by the user through the SPI bus interface. Each potentiometer has associated with it a volatile Wiper Counter Register (WCR) and 4 nonvolatile Data Registers (DR0:DR3) that can be directly written to and read by the user. The contents of the WCR controls the position of the wiper on the resistor array though the switches. Power up recalls the contents of DR0 to the WCR. The XDCP can be used as a three-terminal potentiometer or as a two-terminal variable resistor in a wide variety of applications including control, parameter adjustments, and signal processing.

X9250 Functional Diagram
X9250 Functional Diagram
  • Four potentiometers in one package
  • 256 resistor taps/pot - 0.4% resolution
  • SPI serial interface
  • Wiper resistance, 40Ω typical @ VCC = 5V
  • Four nonvolatile data registers for each pot
  • Nonvolatile storage of wiper position
  • Standby current < 5µA max (total package)
  • Power supplies
  • VCC = 2.7V to 5.5V
  • V+ = 2.7V to 5.5V
  • V- = -2.7V to -5.5V
  • 100kΩ, 50kΩ total pot resistance
  • High reliability
  • Endurance - 100,000 data changes per bit per register
  • Register data retention - 100 years
  • 24 Ld SOIC, 24 Ld TSSOP
  • Dual supply version of X9251
  • Pb-free plus anneal available (RoHS compliant)

Documentation

Title Type Date
X9250
PDF816 KB
Datasheet
AN1425: Get Precision Performance from a Digitally Controlled Potentiometer (DCP)
PDF281 KB
Application Note
AN139: Designing Power Supplies Using Intersil's XDCP Mixed Signal Products
PDF750 KB
Application Note
AN133: Putting Analog On The Bus
PDF534 KB
Application Note
AN1149: Application of Intersil Digitally Controlled Potentiometers (XDCP) as Hybrid Analog/Digital Feedback System Control Elements
PDF467 KB
Application Note
AN136: Using Intersil Digitally Controlled Potentiometers in Commercial RF Power Amplifier Applications
PDF393 KB
Application Note
AN1157: Power Supply and DC to DC Converter Control using Intersil Digitally Controlled Potentiometers (XDCPs)
PDF280 KB
Application Note
AN124: A Primer on Digitally-Controlled Potentiometers
PDF324 KB
Application Note
AN1155: Shaft Encoder Drives Multiple Intersil Digitally Controlled Potentiometers (XDCPs)
PDF239 KB
Application Note
AN1156: Tone, Balance, and Volume Control using a Quad XDCP
PDF209 KB
Application Note
AN1145: A Compendium of Application Circuits for Intersil's Digitally-Controlled (XDCP) Potentiometers
PDF384 KB
Application Note
AN1173: DC/DC Module Trim with Digital Potentiometers
PDF513 KB
Application Note
AN1699: Digital Control Potentiometers Offer Hidden Benefits for Many Designs
PDF251 KB
Application Note
AN9675: A Tutorial in Coherent and Windowed Sampling with A/D Converters
PDF503 KB
Application Note
AN9705: A Theoretical View of Coherent Sampling
PDF287 KB
Application Note
Digital Potentiometer (DCP) Evaluation USB Kit Manual
PDF1.40 MB
Manual - Development Tools
TB458: Converting a Fixed PWM to an Adjustable PWM
PDF315 KB
Other
PIN19006 - Price Increase for the Listed Renesas Electronics America Products
PDF257 KB
Price Increase Notice
PIN17006 - Q1 2017 Price Increase
PDF227 KB
Price Increase Notice
PA14042 - Minimum Line Quantity Change
PDF363 KB
Product Advisory
PCN15043 - Alternate test facility of Intersil Product X9250UV24IZ-2.7* series products
PDF70 KB
Product Change Notice
PCN13065 - Fab site change, C5 Technology transfer to Palm Bay from XFAB and Yamaha for the listed products (Monitor and DCPs)
PDF237 KB
Product Change Notice
PCN11113A - Manufacturing Site Change for Assembly of the Listed Intersil TSSOP Packaged Products - Carsem-M (CAM) - Ipoh, Malaysia
PDF121 KB
Product Change Notice
PCN11113 - Manufacturing Site Change for Assembly of the Listed Intersil TSSOP Packaged Products - Carsem-M (CAM) - Ipoh, Malaysia
PDF120 KB
Product Change Notice
PCN11089 - Manufacturing Site Change for Assembly of the Listed Intersil SOICW Packaged Products - Carsem, Ipoh Malaysia (CAM)
PDF161 KB
Product Change Notice

Design & Development

Software Downloads

Title Type Date
DCP Evaluation Board Software v6.03
EXE2.56 MB
Library

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

Explore ECAD Models
Diagram of ECAD Models

Product Options

    Processing table
    Pkg. Type
    Carrier Type
    MOQ
    Buy / Sample
    Part Number
    X9250TS24IZ-2.7
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    memory
    spa
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    Samples Available
    		 SOICW Tube 240 Get Samples,
    X9250TS24IZ-2.7T1
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    memory
    spa
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    		SOICW Reel 1000
    X9250TS24Z
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    memory
    spa
    view_in_ar
    Samples Available
    		 SOICW Tube 360 Get Samples,
    X9250TS24Z-2.7
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    memory
    spa
    view_in_ar
    Samples Available
    		 SOICW Tube 240 Get Samples,
    X9250TS24Z-2.7T1
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    memory
    spa
    view_in_ar
    		SOICW Reel 1000
    X9250TS24ZT1
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    memory
    spa
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    		SOICW Reel 1000
    X9250US24IZ-2.7
    play_circleActive
    memory
    spa
    view_in_ar
    Samples Available
    		 SOICW Tube 240 Get Samples,
    X9250US24IZ-2.7T1
    play_circleActive
    memory
    spa
    view_in_ar
    		SOICW Reel 1000
    X9250US24Z
    play_circleActive
    memory
    spa
    view_in_ar
    Samples Available
    		 SOICW Tube 360 Get Samples,
    X9250US24Z-2.7
    play_circleActive
    memory
    spa
    view_in_ar
    Samples Available
    		 SOICW Tube 240 Get Samples,
    X9250US24Z-2.7T1
    play_circleActive
    memory
    spa
    view_in_ar
    		SOICW Reel 1000
    X9250US24ZT1
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    memory
    spa
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    		SOICW Reel 1000
    X9250UV24IZ
    play_circleActive
    memory
    spa
    view_in_ar
    Samples Available
    		 TSSOP Tube 248 Get Samples,
    X9250UV24IZ-2.7
    play_circleActive
    memory
    spa
    view_in_ar
    Samples Available
    		 TSSOP Tube 496 Get Samples,
    X9250UV24IZ-2.7T2
    play_circleActive
    memory
    spa
    view_in_ar
    		TSSOP Reel 2500
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