CAT5171: Digital Potentiometer (POT), 256-Tap, I2C Compatible

Description: The CAT5171 is a 256-position linear taper digital...
  • The CAT5171 is a 256-position linear taper digital POT ideally suited for replacing mechanical potentiometers and variable resistors.

    The wiper settings are controlled through an I2C-compatible digital interface. Upon power-up, the wiper assumes a midscale position and may be repositioned anytime after the power is stable. The device can be programmed to reset the wiper position to midscale or to go to a shutdown state during operation. An address input pin, AD0, allows the connection of two devices onto the same I2C bus.

    The CAT5171 operates from 2.7 V to 5.5 V, while consuming less than 2 µA. This low operating current, combined with a small package footprint, makes the CAT5171 ideal for battery-powered portable applications.

    The CAT5171 is designed as a pin for pin replacement for the AD5245 and operates over the -40°C to +85°C industrial temperature range.
  • Features
  • 256-position
  • End-to-End Resistance: 50 kΩ, 100 kΩ
  • I2C Compatible Interface
  • Power-on Preset to Midscale
  • Single Supply 2.7 V to 5.5 V
  • Low Temperature Coefficient 100 ppm/°C
  • Low Power, IDD 2 µA max
  • Wide Operating Temperature -40°C to +85°C
  • Applications
  • Potentiometer Replacement
  • Transducer Adjustment of Pressure, Temperature, Position, Chemical, and Optical Sensors
  • RF Amplifier Biasing
  • Gain Control and Offset Adjustment
  • End Products
  • Industrial Equipment
  • Technical Documentation & Design Resources
    Product Change Notification
    Availability and Samples
    CAT5171TBI-00GT3
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Digital Potentiometer (POT), 256-Tap, I2C Compatible
  • Package Type: SOT-23-8
  • Package Case Outline: 527AK
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • Inventory

  • Market Leadtime (weeks):8 to 12
  • Arrow:0
  • Digikey:>1K
  • PandS:>1K
  • CAT5171TBI-50GT3
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Digital Potentiometer (POT), 256-Tap, I2C Compatible
  • Package Type: SOT-23-8
  • Package Case Outline: 527AK
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • Inventory

  • Market Leadtime (weeks):17 to 20
  • Arrow:0
  • Digikey:>1K
  • Newark:>1K
  • PandS:>1K
  • Specifications
  • # of Pots:
  • # of Taps: 256 
  • Type: Potentiometer 
  • Control Interface: I2C 
  • Resistance Typ (kΩ): 100  50 
  • VH Max (V): VCC 
  • Wiper Position Memory: No 
  • VDD Max (V): 5.5 
  • Package Type: SOT-23-8 
  • ON Semiconductor Full Web Site