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X9116 Datasheet, PDF (1/9 Pages) Xicor Inc. – Digitally Controlled Potentiometer (XDCP)
®
Data Sheet
X9116
Low Noise, Low Power, Low Cost
September 12, 2005
FN8160.1
Digitally Controlled Potentiometer
(XDCP™)
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.
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.
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.
Features
• Solid-state nonvolatile
• 16 wiper taps
• 3-wire up/down serial interface
• VCC = 2.7V and 5V
• Active current < 50µA max.
• Standby current < 1µA max.
• RTOTAL = 10kΩ
• Packages: MSOP-8, SOIC
• Pb-free plus anneal available (RoHS compliant)
Pinout
INC
U/D
VH/RH
VSS
SOIC/MSOP
1
8
2
7
X9116
3
6
4
5
VCC
CS
VL/RL
VW/RW
Block Diagram
VCC (Supply Voltage)
Up/Down
(U/D)
Increment
(INC)
Device Select
(CS)
Control
and
Memory
VSS (Ground)
General
RH/VH
RW/VW
RL/VL
RW-RL Resistance
15
RH
14
13
*
3
2
1
RL
0
10kΩ
9.34kΩ
8.68kΩ
* kΩ
2.08kΩ
1.42kΩ
760Ω
100Ω
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
XDCP is a trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.