®
X9317
Low Noise, Low Power, 100 Taps
Data Sheet
September 9, 2005
FN8183.1
Digitally Controlled Potentiometer
(XDCP™)
The Intersil X9317 is a digitally controlled potentiometer
(XDCP). The device consists of a resistor array, wiper
switches, a control section, and nonvolatile memory. The
wiper position is controlled by a 3-wire interface.
The potentiometer is implemented by a resistor array
composed of 99 resistive elements and a wiper switching
network. Between each element and at either end are tap
points accessible to the wiper terminal. The position of the
wiper element is controlled by the CS, U/D, and INC inputs.
The position of the wiper can be stored in nonvolatile
memory and then be recalled upon a subsequent power-up
operation.
The device can be used as a three-terminal potentiometer
for voltage control or as a two-terminal variable resistor for
current control in a wide variety of applications.
Features
• Solid-State Potentiometer
• 3-Wire Serial Up/Down Interface
• 100 Wiper Tap Points
- Wiper position stored in nonvolatile memory and
recalled on power-up
• 99 Resistive Elements
- Temperature compensated
- End to end resistance range ±20%
• Low Power CMOS
- V
CC
= 2.7V to 5.5V, and 5V ±10%
- Standby current < 1µA
• High Reliability
- Endurance, 100,000 data changes per bit
- Register data retention, 100 years
• R
TOTAL
Values = 1kΩ, 10kΩ, 50kΩ, 100kΩ
• Packages
- 8 Ld SOIC, DIP, TSSOP, and MSOP
• Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
• LCD Bias Control
• DC Bias Adjustment
• Gain and Offset Trim
• Laser Diode Bias Control
• Voltage Regulator Output Control
Pinouts
X9317
(8 LD TSSOP)
TOP VIEW
X9317
(8 LD DIP, 8 LD SOIC, 8 LD MSOP)
TOP VIEW
CS
V
CC
INC
U/D
1
2
3
4
X9317
8
7
6
5
R
L
/V
L
R
W
/V
W
V
SS
R
H
/V
H
INC
U/D
R
H
V
SS
1
2
3
4
X9317
8
7
6
5
V
CC
CS
R
L
R
W
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
XDCP is a trademark of Intersil Americas, Inc. Copyright Intersil Americas Inc. 2004, 2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
INTERSIL [ INTERSIL CORPORATION ]
