CAT5271 Series

Digital Potentiometer (POT), Dual 256-Tap, with I2C Compatible Interface

Catalog

Digital Potentiometer (POT), Dual 256-Tap, with I2C Compatible Interface

Part	Tolerance	Number of Circuits	Configuration	Taper	Number of Taps	Package / Case	Package / Case [x]	Package / Case [x]	Temperature Coefficient (Typ)	Interface	Resistance - Wiper (Ohms) (Typ)	Resistance (Ohms)	Operating Temperature [Max]	Operating Temperature [Min]	Memory Type	Voltage - Supply [Min]	Voltage - Supply [Max]	Mounting Type	Supplier Device Package
ON Semiconductor CAT5271ZI-50-GT3	20 %	2	Potentiometer	Linear	256	10-MSOP 10-TFSOP	3 mm	0.118 in	100 ppm/°C	I2C	100 Ohms	50 kOhms	85 °C	-40 °C	Volatile	2.7 V	5.5 V	Surface Mount	10-MSOP

Catalog

Digital Potentiometer (POT), Dual 256-Tap, with I2C Compatible Interface

Key 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, IDD2 µA max

• Wide Operating Temperature -40°C to +85°C

Description

The CAT5271 is a dual 256-positionlinear 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 CAT5271 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.