CAT5113P-50MSOP datasheet, PDF

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CAT5113P-50MSOP: Description100-Tap Digitally Programmable Potentiometer (DPP) with Buffered Wiper; Categoryaccessories; File Size67KB，7 Pages; ManufacturerCatalyst; Websitehttp://www.catalyst-semiconductor.com/

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CAT5113P-50MSOP Overview

100-Tap Digitally Programmable Potentiometer (DPP) with Buffered Wiper

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CAT5111

100-Tap Digitally Programmable Potentiometer (DPP™)

with Buffered Wiper

FEATURES

100-position linear taper potentiometer

Non-volatile NVRAM wiper storage;

GEN

ALO

APPLICATIONS

Automated product calibration

Remote control adjustments

Offset, gain and zero control

Tamper-proof calibrations

Contrast, brightness and volume controls

Motor controls and feedback systems

Programmable analog functions

buffered wiper

Low power CMOS technology

Single supply operation: 2.5V-6.0V

Increment up/down serial interface

Resistance values: 10kΩ, 50kΩ and 100kΩ

Ω,

Ω

Available in PDIP, SOIC, TSSOP and MSOP packages

DESCRIPTION

The CAT5111 is a single digitally programmable

potentiometer (DPP™) designed as a electronic

replacement for mechanical potentiometers and trim

pots. Ideal for automated adjustments on high volume

production lines, they are also well suited for

applications where equipment requiring periodic

adjustment is either difficult to access or located in a

hazardous or remote environment.

The CAT5111 contains a 100-tap series resistor array

connected between two terminals R

and R

. An up/

down counter and decoder that are controlled by three

input pins, determines which tap is connected to the

wiper, R

. The CAT5111 wiper is buffered by an op

amp that operates rail to rail. The wiper setting, stored in

non-volatile NVRAM memory, is not lost when the device

is powered down and is automatically recalled when

power is returned. The wiper can be adjusted to test new

FUNCTIONAL DIAGRAM

system values without effecting the stored

setting. Wiper-control of the CAT5111 is

accomplished with three input control pins,

CS,

U/D,

and

INC.

The

INC

input increments the wiper in the

direction which is determined by the logic state of

the U/D input. The

input is used to select the

device and also store the wiper position prior to

power down.

The digitally programmable potentiometer can be

used as a buffered voltage divider. For applications

where the potentiometer is used as a 2-terminal variable

resistor, please refer to the CAT5113. The buffered

wiper of the CAT5111 is not compatible with that

application. DPPs bring variability and programmability

to a broad range of applications and are used primarily

to control, regulate or adjust a characteristic or parameter

of an analog circuit.

U/D

INC

Power On Recall

–

Control

and

Memory

RWB

GND

Characteristics subject to change without notice

Electronic Potentiometer

Implementation

Doc. No. 2008, Rev. O

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