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CAT5116VIMSOP Datasheet(PDF) 1 Page - Catalyst Semiconductor

No. de pieza CAT5116VIMSOP
Descripción Electrónicos  Log-Taper, 100-Tap Digitally Programmable Potentiometer
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Fabricante Electrónico  CATALYST [Catalyst Semiconductor]
Página de inicio  http://www.catalyst-semiconductor.com
Logo CATALYST - Catalyst Semiconductor

CAT5116VIMSOP Datasheet(HTML) 1 Page - Catalyst Semiconductor

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Doc. No. 2118, Rev. J
CAT5116
APPLICATIONS
s Automated product calibration
s Remote control adjustments
s Offset, gain and zero control
s Audio volume control
s Sensor adjustment
s Motor controls and feedback systems
s Programmable analog functions
FEATURES
s 100-position, log-taper potentiometer
s Non-volatile EEPROM wiper storage
s 10nA ultra-low standby current
s Single-supply operation: 2.5V - 5.5V
s Increment Up/Down serial interface
s Resistance value: 32k
s Available in 8-pin MSOP, TSSOP, SOIC and DIP packages
automatically reinstated when power is returned. The
wiper can be adjusted to test new system values without
effecting the stored setting.
Wiper-control of the CAT5116 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 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.
FUNCTIONAL DIAGRAM
DESCRIPTION
The CAT5116 is a log-taper 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, DPP ICs are well suited for
applications where equipment requiring periodic
adjustment is either difficult to access or located in a
hazardous or remote environment.
The CAT5116 contains a 100-tap series resistor array
connected between two terminals RH and RL. An up/
down counter and decoder that are controlled by three
input pins, determines which tap is connected to the
wiper, RW.
The wiper setting, stored in nonvolatile memory, is not
lost when the device is powered down and is
ALO
GEN FR
TM
LEAD FREE
1
© 2004 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
Doc. No. 2118, Rev. J
CAT5116
Log-Taper, 100-Tap Digitally Programmable Potentiometer (DPP™)
GENERAL
BLOCK DIAGRAM
POTENTIOMETER SCHEMATIC
EEPROM
U
/D
INC
CS
INTERFACE
&
WIPER
CONTROL
GND
Potentiometer
R = 32k
RW
RL
RH
VCC
INCREMENT
UP/DOWN
CHIP SELECT
VCC
RH
RW
RL
POR
GND
U
/D
INC
CS
CONTROL
AND
MEMORY
RH
RW
RL


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