DP7114 Datasheet, PDF (1/14 Pages) Copal Electronics – 32-Tap Digital Potentiometer

DP7114
32-Tap Digital Potentiometer (DP)
Description
The DP7114 is a single digital potentiometer (DP)
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 DP7114 contains a ïWDS 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.
Wiperïcontrol of the DP7114 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 potentiometer can be used as a WKUHHïterminal
resistive divider or as a WZRïWHUPLQDO variable resistor.
DPs bring variability and programmability to a wide variety of
applications including control, parameter adjustments, and signal
processing.
Features
v 32ïposition Linear Taper Potentiometer
v Nonïvolatile EEPROM Wiper Storage
v Low Standby Current
v Single Supply Operation: 2.5 V ï 6.0 V
v Increment Up/Down Serial Interface
v Resistance Values: 10 k , 50 k and 100 k
v Available in SOIC, TSSOP, MSOP and Space Saving
2 x 3 mm TDFN Packages
v These Devices are PbïFree, Halogen Free/BFR Free and are RoHS
Compliant
Applications
v Automated Product Calibration
v Remote Control Adjustments
v Offset, Gain and Zero Control
v Tamperïproof Calibrations
v Contrast, Brightness and Volume Controls
v Motor Controls and Feedback Systems
v Programmable Analog Functions
SOICï8
MSOPï8
TSSOPï8
TDFNï8
PIN CONFIGURATIONS
1
INC
V_CC
U/D
CS
R_H
R_L
GND
R_W
SOIC (V),
MSOP (Z)
1
CS
V_CC
INC
U/D
R_L
R_W
GND
R_H
TSSOP (Y)
INC 1
V_CC
U/D
CS
R_H
R_L
GND
R_W
TDFN (VP2)
(Top Views)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 15 of this data sheet.
¢ NIDEC COPAL ELECTRONICS CORP.
1
June, 2011 ï Rev. 20
Publication Order Number:
DP7114/D