CAT5128TBI-00-GT3 ONSEMI [ON Semiconductor], CAT5128TBI-00-GT3 Datasheet

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CAT5128TBI-00-GT3

Manufacturer Part Number
CAT5128TBI-00-GT3
Description
32-Tap Digital Up/Down Control Potentiometer
Manufacturer
ONSEMI [ON Semiconductor]
Datasheet
1.CAT5128TBI-00-GT3.pdf (8 pages)
32-Tap Digital Up/Down Control Potentiometer
FEATURES
APPLICATIONS
FUNCTIONAL DIAGRAM
DOWN
© 2008 SCILLC. All rights reserved.
Characteristics subject to change without notice
For Ordering Information details, see page 7.
UP
32-position linear taper potentiometer
Low power CMOS technology
Single supply operation: 2.5V – 5.5V
Discrete step-up/step-down digital control
Resistance values: 10kΩ, 50kΩ and 100kΩ
Available in SOT-23 8-lead Pb-free package
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
Power On Recall
UP/DOWN
Control
V
General
CC
GND
A
W
B
DOWN
GND
V
UP
CC
CIRCUITRY
COUNTER
UP/DOWN
CONTROL
5-BIT
1
DESCRIPTION
The CAT5128 is a single digitally programmable
potentiometer (DPP™) designed as an 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 CAT5128 contains a 32-tap series resistor array
connected between two terminals A and B. An
up/down counter and decoder that are controlled by
two input pins, determines which tap is connected to
the wiper, W. Wiper-control of the CAT5128 is
accomplished with two input control pins, UP
¯¯¯¯¯¯ . A high-to-low transition on the UP
increments the wiper position and a high-to-low
transition on the DOWN
position. The tap position is not stored in memory.
The wiper is always set to the mid point, tap 15 at
power up.
The digitally programmable potentiometer can be used
as a three-terminal resistive divider or as a two-terminal
variable resistor. DPPs bring variability and program-
mability to a wide variety of applications including
control, parameter adjustments, and signal processing.
DOWN
THIRTY TWO
DECODER
ONE
OF
Detailed
31
30
29
28
2
1
0
TRANSFER
GATES
¯¯¯¯¯¯ input decrements the wiper
RESISTOR
ARRAY
A
B
W
Electronic Potentiometer
CAT5128
Doc. No. MD-2128 Rev. B
Implementation
¯¯ input
¯¯ and
A
W
B

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CAT5128TBI-00-GT3 Summary of contents

Page 1

Digital Up/Down Control Potentiometer FEATURES 32-position linear taper potentiometer Low power CMOS technology Single supply operation: 2.5V – 5.5V Discrete step-up/step-down digital control Resistance values: 10kΩ, 50kΩ and 100kΩ Available in SOT-23 8-lead Pb-free package APPLICATIONS Automated product calibration ...

Page 2

CAT5128 PIN CONFIGURATION SOT-23 8-Lead ¯¯ ¯¯¯¯¯¯ DOWN NC CAT GND PIN DESCRIPTION ¯¯ : Step-Up Control Input UP ¯¯¯¯¯¯ input is high, a high-to-low transition ...

Page 3

OPERATION MODES ¯¯¯¯¯¯ DOWN ¯¯ UP High to Low High X Low High High to Low Wiper toward B – R High to Low High to Low Wiper toward B – R Low X High High ABSOLUTE MAXIMUM RATINGS Parameters ...

Page 4

CAT5128 LOGIC INPUTS V = +2.5V to +5.5V unless otherwise specified CC Symbol Parameter I Input Leakage Current IH I Input Leakage Current IL V TTL High Level Input Voltage IH1 V TTL Low Level Input Voltage IL1 V CMOS ...

Page 5

AC CONDITIONS OF TEST V Range 2.5V ≤ Input Pulse Levels 0.2V Input Rise and Fall Times 10ns Input Reference Levels 0.5V AC OPERATING CHARACTERISTICS V = +2.5V to +5.5V ...

Page 6

CAT5128 PACKAGE OUTLINE DRAWING (1)(2) SOT-23 8-Lead (TB PIN #1 IDENTIFICATION TOP VIEW D A SIDE VIEW For current Tape and Reel information, download the PDF file from: http://www.catsemi.com/documents/tapeandreel.pdf. Notes: (1) All dimensions are in millimeters. (2) Complies ...

Page 7

... All packages are RoHS-compliant (Lead-free, Halogen-free). (2) The standard lead finish is NiPdAu. (3) This device used in the above example is a CAT5128TBI-10-GT3 (SOT-23, Industrial Temperature, 10kΩ, NiPdAu, Tape & Reel, 3,000/Reel) . (4) For additional package and temperature options, please contact your nearest ON Semiconductor Sales office. ...

Page 8

CAT5128 REVISION HISTORY Date Rev. Description 19-Mar-08 A Initial Release 21-Nov-08 B Change logo and fine print to ON Semiconductor ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without ...

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