X9116
Low Noise, Low Power, Low Cost
®
Data Sheet
February 3, 2011
FN8160.3
Digitally Controlled Potentiometer
(XDCP™)
Features
• Solid-state nonvolatile
The Intersil X9116 is a digitally controlled nonvolatile
potentiometer designed to be used in trimmer applications.
The pot consists of 15 equal resistor segments that connect
to the wiper pin through programmable CMOS switches. The
tap position is programmed through a 3-wire up/down serial
port. The last position of the wiper is stored in a nonvolatile
memory location which is recalled at the time of power up of
the device.
• 16 wiper taps
• 3-wire up/down serial interface
• V
CC
= 2.7V and 5V
• Active current < 50µA max.
• Standby current < 5µA max.
• R
= 10kΩ
• Packages: 8 Ld MSOP, 8 Ld SOIC
TOTAL
The wiper moves through sequential tap positions with
inputs on the serial port. A falling edge on INC (bar) causes
the tap position to increment one position up or down based
on whether the U/D (bar) pin is held high or low.
• Pb-free plus anneal available (RoHS compliant)
Pinout
SOIC/MSOP
The X9116 can be used in many applications requiring a
variable resistance. In many cases it can replace a
mechanical trimmer and offers many advantages such as
temperature and time stability as well as the reliability of a
solid state solution.
V
INC
U/D
1
2
3
4
8
7
6
5
CC
CS
X9116
V /R
L
V /R
L
H
H
V
V
/R
W
SS
W
Block Diagram
V
(Supply Voltage)
CC
R /V
H
H
Up/Down
(U/D)
Control
and
Memory
Increment
(INC)
R
/V
W
W
Device Select
(CS)
R /V
L
L
R
-R Resistance
L
W
V
(Ground)
SS
15
10kΩ
R
H
General
14
9.34kΩ
13
8.68kΩ
* kΩ
*
3
2.08kΩ
1.42kΩ
2
1
760Ω
100Ω
0
R
L
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1
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Intersil (and design) and XDCP are trademarks owned by Intersil Corporation or one of its subsidiaries.
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