CAT5269: Digital Potentiometer (POT), Dual 256-Tap, with 2-wire Interface

Datasheet: Digital Potentiometer (POT), Dual 256-Tap, with 2-wire Interface
Rev. 7 (206.0kB)
Product Overview
View Reliability Data
View Material Composition
Product Change Notification
The CAT5269 is two digital POTs integrated with control logic and 18 bytes of NVRAM memory. Each digital POT consists of a series of resistive elements connected between two externally accessible end points. The tap points between each resistive element are connected to the wiper outputs with CMOS switches. A separate 8-bit control register (WCR) independently controls the wiper tap switches for each digital POT. Associated with each wiper control register are four 8-bit non-volatile memory data registers (DR) used for storing up to four wiper settings. Writing to the wiper control register or any of the non-volatile data registers is via a 2-wire serial bus. On power-up, the contents of the first data register (DR0) for each of the four potentiometers is automatically loaded into its respective wiper control registers.

The CAT5269 can be used as a potentiometer or as a two terminal, variable resistor. It is intended for circuit level or system level adjustments in a wide variety of applications. It is available in the -40°C to 85°C industrial operating temperature range.
  • Two linear taper digital potentiometers
  • 256 resistor taps per potentiometer
  • End to end resistance 50 kΩ or 100 kΩ
  • Potentiometer control and memory access via 2-wire interface (I²C like)
  • Low wiper resistance, typically 100 Ω
  • Nonvolatile memory storage for up to four wiper settings for each potentiometer
  • Automatic recall of saved wiper settings at power up
  • 2.5 to 6.0 volt operation
  • Standby current less than 1 μA
  • 1,000,000 nonvolatile WRITE cycles
  • 100 year nonvolatile memory data retention
  • Industrial temperature range
Applications   End Products
  • Audio Equipment
  • Industrial Controls
  • Automobiles
  • Industrial Equipment
Technical Documentation & Design Resources
Tutorials (1) Package Drawings (1)
Data Sheets (1)  
Budgetary Price/Unit
Case Outline
CAT5269YI-00-T2 Last Shipments
Halide free
CAT5269, 100 kΩ TSSOP-24 948AR 1 260 Tape and Reel 2000  
Market Leadtime (weeks) : Contact Factory
Case Outlines
Diagram - Block
Previously Viewed Products
Clear List

Your request has been submitted for approval.
Please allow 2-5 business days for a response.
You will receive an email when your request is approved.
Request for this document already exists and is waiting for approval.