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CAT5133

Catalyst Semiconductor
Part Number CAT5133
Manufacturer Catalyst Semiconductor
Description Digitally Programmable Potentiometer
Published Dec 4, 2006
Detailed Description www.DataSheet4U.com CAT5133 15 Volt Digitally Programmable Potentiometer (DPPTM) with 128 Taps and an Increment Decreme...
Datasheet PDF File CAT5133 PDF File

CAT5133
CAT5133

Overview
www.
DataSheet4U.
com CAT5133 15 Volt Digitally Programmable Potentiometer (DPPTM) with 128 Taps and an Increment Decrement Interface FEATURES „ Single Linear Digital Programmable Potentiometer „ 128 Resistor Taps „ End-to-end resistances of 10kΩ, 50kΩ, & 100kΩ „ Potentiometer control and memory storage via an Increment-Decrement Interface „ Nonvolatile memory storage for wiper settings „ Automatic recall of saved wiper settings at power up „ Vcc operation from 2.
7V to 5.
5V „ V+ (Analog Voltage Supply) operation from +8V to +15V „ Wiper output voltages from 0V to +15V „ Standby current less than 15µA „ 100 year nonvolatile memory data retention „ 10-pin MSOP package „ Operating Temperature of -40ºC to +85ºC DESCRIPTION The CAT5133 is a high voltage Digital Programmable Potentiometer (DPP) integrated with E2PROM memory and control logic to operate in a similar manor to a mechanical potentiometer.
The DPP consists of a 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.
A 7-bit wiper control register (WCR) independently controls the wiper tap switches for the DPP.
Associated with the control register is a 7-bit nonvolatile memory data register (DR) used for storing the wiper settings.
Changing the value of the wiper control register or storing that value into the nonvolatile memory is performed via a 3-input Increment-Decrement interface.
The CAT5133 comes with 2 voltage supply inputs: Vcc (digital supply voltage) input and V+ (analog bias supply) input.
Providing separate Digital and Analog inputs allow the potentiometer terminals to be as much as 10 volts above Vcc and 15 volts above ground.
The CAT5133 can be used as a potentiometer or as a two terminal, variable resistor.
It is designed for circuit level or system level adjustments in a wide variety of applications.
On power-up, the contents of the nonvolatile data register (DR) are...


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