The ISL22316 integrates a single digitally controlled potentiometer (DCP) and non-volatile memory on a monolithic CMOS integrated circuit. The digitally controlled potentiometer is implemented with a combination of resistor elements and CMOS switches. The position of the wipers are controlled by the user through the I2C bus interface. The potentiometer has an associated volatile Wiper Register (WR) and a non-volatile Initial Value Register (IVR) that can be directly written to and read by the user. The contents of the WR controls the position of the wiper. At power up the device recalls the contents of the DCP's IVR to the WR. The DCP 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.

Features

  • 128 resistor taps
  • I2C serial interface
  • Two address pins, up to four devices/bus
  • Non-volatile storage of wiper position
  • Wiper resistance: 70Ω typical @ 3.3V
  • Shutdown mode
  • Shutdown current 5µA max
  • Power supply: 2.7V to 5.5V
  • 50kΩ or 10kΩ total resistance
  • High reliability
  • Endurance: 1,000,000 data changes per bit per register
  • Register data retention: 50 years @ T≤55°C
  • 10 Ld MSOP or 10 Ld TDFN package
  • Pb-free (RoHS compliant)

Product Options

Orderable Part ID Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active TDFN Tube 2000
Availability
Active TDFN Reel 2000
Availability
Active MSOP Tube 2000
Availability
Active MSOP Reel 2000
Availability

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
ISL22316 Datasheet Datasheet PDF 1017 KB
User Guides & Manuals
RKTA-SEMITECRTDEVZ User's Manual Manual PDF 430 KB
Digital Potentiometer (DCP) Evaluation USB Kit User Guide Manual PDF 1.09 MB
RTKA-BDGSTKDBEVKIT1Z User's Manual Manual PDF 1.09 MB
RTKA-BDGSTKEV2Z User's Manual Manual PDF 721 KB
Application Notes & White Papers
AN1425: Get Precision Performance from a Digitally Controlled Potentiometer (DCP) Application Note PDF 281 KB
AN1690: Electronics Meets the Challenges of Patient Monitors Application Note PDF 377 KB
AN1699: Digital Control Potentiometers Offer Hidden Benefits for Many Designs Application Note PDF 251 KB
AN9675: A Tutorial in Coherent and Windowed Sampling with A/D Converters Application Note PDF 503 KB
AN9705: A Theoretical View of Coherent Sampling Application Note PDF 287 KB
PCNs & PDNs
PCN11059 - Shipping Tube Change for Intersil MSOP Packaged Products Product Change Notice PDF 117 KB
Other
RTKA-SEMITECRTDEVZ Design Files Design File ZIP 4.56 MB
RTKA-BDGSTKEV2Z Design Files Design File ZIP 569 KB
RTKA-BDGSTKDBEVKIT1Z Design Files Design File ZIP 759 KB
Vendor Item Drawing (VID) V62/08603 (ISL22316, ISL22316WM) Other 0 KB
DCP Evaluation Board Software v6.03 Library EXE 2.56 MB
TB458: Converting a Fixed PWM to an Adjustable PWM Other PDF 315 KB

Boards & Kits

Part Number Title Type Company
RTKA-BDGSTKDBEVKIT1Z DAQ on a Stick with Honeywell Pressure Sensor Kit Evaluation
RTKA-BDGSTKEV2Z DAQ on a Stick Strain Gauge Kit Evaluation
RTKA-SEMITECRTDEVAZ DAQ on a Stick with Semitec RTD Temperature Sensor Kit Evaluation