CAT5270: DPP, Volatile Dual 256 Tap I²C

Datasheet: Dual Digitally Programmable Potentiometers (DPP™) with 256 Taps and I2C Compatible Interface Rev. 3 (163.0kB)

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The CAT5270 is a volatile 256-tap by two channels, digitally programmable potentiometer (DPP™) with an I²C compatible interface. Each DPP consists of a linear taper 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. On power up the wiper position goes to mid scale.

The CAT5270 can be used as a potentiometer or as a two terminal, variable resistor. It is available in a 14-lead TSSOP package operating over the industrial temperature range (-40°C to 85°C).

Features
Two Linear Taper Digitally Programmable Potentiometers
256 Resistor Taps per Potentiometer
End to End Resistance 50 kΩ, 100 kΩ
I2C Compatible Interface
Low Wiper Resistance 75 Ω (typ.)
2.5 V to 5.5 V Operation
Standby Current Less than 1 µA
Power On to Mid Scale
14-lead TSSOP Package
Industrial Temperature Range

Technical Information
Data Sheets (1)	Package Drawings (1)