CAT5114_13 Datasheet, PDF (1/15 Pages) ON Semiconductor – 32‐tap Digital Potentiometer (POT)

CAT5114
32‐tap Digital
Potentiometer (POT)
Description
The CAT5114 is a single digital POT 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 CAT5114 contains a 32-tap series resistor array connected
between two terminals R_H and R_L. An up/down counter and decoder
that are controlled by three input pins, determines which tap is
connected to the wiper, R_W. The wiper setting, stored in nonvolatile
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 new system values without affecting the stored setting.
Wiper-control of the CAT5114 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 digital POT can be used as a three-terminal resistive divider or
as a two-terminal variable resistor. Digital POTs bring variability and
programmability to a wide variety of applications including control,
parameter adjustments, and signal processing.
Features
 32-position Linear Taper Potentiometer
 Non-volatile EEPROM Wiper Storage
 Low Standby Current
 Single Supply Operation: 2.5 V − 6.0 V
 Increment Up/Down Serial Interface
 Resistance Values: 10 kW, 50 kW and 100 kW
 Available in PDIP, SOIC, TSSOP, MSOP and Space Saving
2  3 mm TDFN Packages
 These Devices are Pb-Free, Halogen Free/BFR Free and are RoHS
Compliant
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
http://onsemi.com
SOIC−8
V SUFFIX
CASE 751BD
MSOP−8
Z SUFFIX
CASE 846AD
PDIP−8
L SUFFIX
CASE 646AA
TSSOP−8
Y SUFFIX
CASE 948AL
TDFN−8
VP2 SUFFIX
CASE 511AK
PIN CONFIGURATIONS
1
INC
U/D
R_H
GND
V_CC
CS
R_L
R_WB
PDIP (L), SOIC (V), MSOP (Z)
1
CS
V_CC
INC
U/D
TSSOP (Y)
R_L
R_WB
GND
R_H
INC
U/D
R_H
GND
1
TDFN (VP2)
(Top Views)
V_CC
CS
R_L
R_WB
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 9 of this data sheet.
 Semiconductor Components Industries, LLC, 2013
1
June, 2013 − Rev. 23
Publication Order Number:
CAT5114/D