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CAT5132

16 Volt Digital Potentiometer (POT) with 128 Taps and I2C Interface

ON Semiconductor 

CAT5132

16 Volt Digital

Potentiometer (POT)

with 128 Taps

and I2C Interface

Description

The CAT5132 is a high voltage digital POT with non-volatile wiper

setting memory, operating like a mechanical potentiometer. The tap

points between the 127 equal resistive elements are connected to the

wiper output via CMOS switches. The switches are controlled by a

7-bit Wiper Control Register (WCR). The wiper setting can be stored

in a 7-bit non-volatile Data Register (DR). The WCR is accessed via

the I2C serial bus.

Upon power-up, the WCR is set to mid-scale (1000000). After the

power supply is stable, the contents of the DR are transferred to the

WCR and the wiper is returned to the memorized setting.

The CAT5132 has two voltage supplies: VCC, the digital supply and

V+, the analog supply. V+ can be much higher than VCC, allowing for

16 V analog operations.

The CAT5132 can be used as a potentiometer or as a two-terminal

variable resistor.

Features

 Single Linear Digital Potentiometer with 128 Taps

 End-to-end Resistance of 10 kW, 50 kW or 100 kW

 I2C Interface

 Fast Up/Down Wiper Control Mode

 Non-volatile Wiper Setting Storage

 Automatic Wiper Setting Recall at Power−up

 Digital Supply Range (VCC): 2.7 V to 5.5 V

 Analog Supply Range (V+): +8 V to +16 V

 Low Standby Current: 15 mA

 100 Year Wiper Setting Memory

 Industrial Temperature Range: −40C to +85C

 10-pin MSOP Package

 These Devices are Pb-Free, Halogen Free/BFR Free and are RoHS

Compliant

Applications

 LCD Screen Adjustment

 Volume Control

 Mechanical Potentiometer Replacement

 Gain Adjustment

 Line Impedance Matching

 VCOM Setting Adjustments

 Semiconductor Components Industries, LLC, 2013

1

July, 2013 − Rev. 7

http://onsemi.com

MSOP−10

Z SUFFIX

CASE 846AE

MARKING DIAGRAM

ANBx

YMR

ANBU = CAT5132ZI-10-GT3

ANBK = CAT5132ZI-50-GT3

ANBP = CAT5132ZI-00-GT3

Y = Production Year (Last Digit)

M = Production Month (1-9, A, B, C)

R = Production Revision

PIN CONFIGURATION

SDA

1

GND

VCC

A1

A0

SCL

V+

RL

RW

RH

(Top View)

ORDERING INFORMATION

Device

CAT5132ZI−10−GT3

CAT5132ZI−50−GT3

CAT5132ZI−00−GT3

Package

MSOP

(Pb−Free)

Shipping†

3,000 /

Tape & Reel

†For information on tape and reel specifications, in-

cluding part orientation and tape sizes, please refer

to our Tape and Reel Packaging Specifications Bro-

chure, BRD8011/D.

1. For detailed information and a breakdown of

device nomenclature and numbering systems,

please see the ON Semiconductor Device No-

menclature document, TND310/D, available at

www.onsemi.com.

2. The standard lead finish is NiPdAu.

3. For additional package and temperature options,

please contact your nearest ON Semiconductor

Sales office.

Publication Order Number:

CAT5132/D

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