CAT5172: Digital Potentiometer (POT), 256-Tap, SPI Compatible

Description: The CAT5172 is a 256-position linear taper digital...
  • The CAT5172 is a 256-position linear taper digital POT ideally suited for replacing mechanical potentiometers and variable resistors. Like mechanical potentiometers, the CAT5172 has a resistive element, which can span VCC to Ground or float anywhere between the power supply rails.

    Wiper settings are controlled through an SPI-compatible digital interface. Upon power-up, the wiper assumes a mid-span position and may be repositioned anytime after the power is stable.

    The CAT5172 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 CAT5172 ideal for battery powered portable appliance.
  • Features
  • 256-position
  • End-to-End Resistance: 50 kΩ, 100 kΩ
  • SPI 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
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Digital Potentiometer (POT), 256-Tap, SPI Compatible, 50 kΩ
  • 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
  • PandS:>1K
  • Specifications
  • # of Pots:
  • # of Taps: 256 
  • Type: Potentiometer 
  • Control Interface: SPI 
  • Resistance Typ (kΩ): 50 
  • VH Max (V): VCC 
  • Wiper Position Memory: No 
  • VDD Max (V): 5.5 
  • Package Type: SOT-23-8 
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