CAT5114 Catalyst Semiconductor, CAT5114 Datasheet

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CAT5114

Manufacturer Part Number
CAT5114
Description
32-Tap Digitally Programmable Potentiometer (DPP)
Manufacturer
Catalyst Semiconductor
Datasheet

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DEVICE SELECT
DESCRIPTION
The CAT5114 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 CAT5114 contains a 32-tap series resistor array
connected between two terminals R
down counter and decoder that are controlled by three
input pins, determines which tap is connected to the
wiper, R
memory, is not lost when the device is powered
down and is automatically reinstated when power
is returned. The wiper can be adjusted to test
CAT5114
32-Tap Digitally Programmable Potentiometer (DPP)
FEATURES
FUNCTIONAL DIAGRAM
© 2001 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
Advance Information
INCREMENT
32 Position Linear Taper Potentiometer
Nonvolatile Wiper Storage
Low Power CMOS Technology
Single Supply Operation: 2.5V-6.0V
Increment Up/Down Serial Interface
Resistance Values: 10K, 20K, 50K and 100K
Available in PDIP, SOIC, TSSOP and MSOP packages
UP/DOWN
(INC)
(U/D)
(CS)
W
. The wiper setting, stored in nonvolatile
Memory
Control
and
Vcc
V
SS
GENERAL
GENERAL
(Ground)
(Supply Voltage)
R
R
R
H
W
L
/
/
/
V
V
V
W
L
H
U/D
INC
CS
H
Vcc
SS
and R
NONVOLATILE
STORE AND
CIRCUITRY
UP/DOWN
COUNTER
CONTROL
MEMORY
RECALL
5-BIT
5-BIT
L
. An up/
THIRTY TWO
DECODER
DETAILED
1
ONE
OF
31
30
29
28
APPLICATIONS
new system values without effecting the stored
setting.
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 CS 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 three-terminal resistive divider or as a
two-terminal variable resistor. DPPs bring variability and
programmability to a wide variety of applications
including control, parameter adjustments, and
signal processing.
2
1
0
Automated Product Calibration
Remote Control Adjustments
Offset, Gain and Zero Control Systems
Tamper-Proof Calibrations
Contrast, Brightness and Volume Controls
Motor Controls and Feedback Systems
Programmable Analog Functions
TRANSFER
GATES
Wiper-control
RESISTOR
ARRAY
R
R
R
H
L
W
/
/
/
V
V
V
L
H
W
of
Electronic Potentiometer
Implementation of the
the
Doc. No. 25091-00 Rev. 3/28/01
CAT5114
V
V
V
H
W
L
/
/
/
R
R
R
M-1
H
is
W
L

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CAT5114 Summary of contents

Page 1

... The CAT5114 contains a 32-tap series resistor array connected between two terminals R down counter and decoder that are controlled by three input pins, determines which tap is connected to the wiper, R ...

Page 2

... the CAT5114 and is active low. When in a high state, activity on the INC and U/D inputs will not affect or change the position of the wiper. DEVICE OPERATION The CAT5114 operates like a digitally controlled potentiometer with R and low terminals and R potentiometer's wiper. There are 32 available tap posi- ...

Page 3

... Latch-Up LTH T Data Retention DR N Endurance END DC Electrical Characteristics: V Power Supply Symbol Parameter V Operating Voltage Range CC I Supply Current (Increment) CAT5114 CC1 I Supply Current (Write) CC2 (2) ISB Supply Current (Standby) 1 Logic Inputs Symbol Parameter I Input Leakage Current IH I Input Leakage Current ...

Page 4

... CAT5114 Potentiometer Parameters Symbol Parameter R Potentiometer Resistance POT Pot Resistance Tolerance V Voltage on R pin Voltage on R pin RL L Resolution INL Integral Linearity Error DNL Differential Linearity Error R Wiper Resistance Wi I Wiper Current Pot Resistance RPOT TC Ratiometric TC RATIO R Isolation Resistance ...

Page 5

... unless otherwise specified L Min 100 50 100 250 250 1 100 10 — 1 — — 0.2 — (store CPH IH tDI tID 5 CAT5114 Limits (1) Typ Max Units — — ns — — ns — — ns — — ns — — ns — — — — ns — — — ...

Page 6

... ORDERING INFORMATION Prefix Device # 5114 CAT Product Number Optional Company ID 5114: Unbuffered Notes: (1) The device used in the above example is a CAT5114 SI-10TE13 (SOIC, 10K Ohms, Industrial Temperature, Tape & Reel) Doc. No. 25091-00 Rev. 3/01 M-1 Suffix S I Package Resistance -10: 10K Ohms P: PDIP S: SOIC ...

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