CAT5273: Digital Potentiometer (POT), Dual 256-Tap, I2C Compatible

The CAT5273 is a dual 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 go to a shutdown state during operation. The CAT5273 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 CAT5273 ideal for battery-powered portable applications. The CAT5271, designed as a pin for pin replacement for the AD5248, operates over the -40°C to +85°C industrial temperature range.

Features
  • Dual 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 A max
  • Wide Operating Temperature -40°C to +85°C
Benefits
  • Offers high-resolution adjustment
Applications
  • Potentiometer Replacement
  • Transducer Adjustment of Pressure, Temperature, Position, Chemical, and Optical Sensors
  • RF Amplifier Biasing
  • Gain Control and Offset Adjustment
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
Digital Potentiometer (POT), Dual 256-Tap, I2C CompatibleCAT5273/D (223.0kB)3
Package Drawings (1)
Document TitleDocument ID/SizeRevision
MSOP 10, 3x3846AE (56.4kB)revo
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
CAT5273ZI-50-GT3ActivePb-free Halide freeMSOP-10846AE1Tape and Reel3000$1.6
Specifications
Product# of Pots# of TapsTypeControl InterfaceResistance Typ (kΩ)VH Max (V)Wiper Position MemoryVDD Max (V)
CAT5273ZI-50-GT32256PotentiometerI2C50VCCNo6.5
Digital Potentiometer (POT), Dual 256-Tap, I2C Compatible (223.0kB) CAT5273
MSOP 10, 3x3 CM1293A