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)
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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.
Features
 
  • 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)  
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CAT5269YI-00-T2 Last Shipments
Pb-free
Halide free
CAT5269, 100 kΩ TSSOP-24 948AR 1 260 Tape and Reel 2000 $5.3332
Market Leadtime (weeks) : Contact Factory
Case Outlines
948AR   
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