廬
ISL23711
Volatile Digitally Controlled Potentiometer (XDCP鈩?
Data Sheet
August 16, 2005
FN6127.0
Terminal Voltage 鹵3V or 鹵5V, 128 Taps I
2
C
Serial Interface
The Intersil ISL23711 is a digitally controlled potentiometer
(XDCP). The device consists of a resistor array, wiper
switches, and a control section. The wiper position is
controlled by an I
2
C interface.
The potentiometer is implemented by a resistor array
composed of 127 resistive elements and a wiper switching
network. The wiper terminal can be connected to either end
of the resistor array or at any one of the Tap Positions in
between, providing 128 steps of resolution between R
L
and
R
H
. The 鈥減osition鈥?of the wiper is determined by the value
assigned to the volatile Wiper Register (WR). The WR can
be directly written to and read from using standard I
2
C
interface protocol. The device is available in either a 10k鈩?or
50k鈩?version.
The device can be used as a three-terminal potentiometer or
as a two-terminal variable resistor in a wide variety of
applications including:
鈥?Industrial and Automotive Control
鈥?Parameter and Bias Adjustments
鈥?Amplifier Bias and Control
Features
鈥?I
2
C Serial Interface with Hardwire Slave Address Allows
up to Four Devices
鈥?DCP Terminal Voltage, from V- to V
CC
鈥?127 Resistive Elements
- Typical R
TOTAL
tempco 鹵50ppm/
擄
C
- Typical ratiometric tempco 鹵4ppm/
擄
C
- End to end resistance range 鹵20%
- Wiper resistance = 70鈩?typ at V
CC
= 3.3V
鈥?Low Power CMOS
- Standby current, 500nA max
- Active current, 200碌A(chǔ) max
- V
CC
= 2.7V to 5.5V
- V- = -2.7V to -5.5V
鈥?R
TOTAL
Values = 10k鈩? 50k鈩?/div>
鈥?Volatile Wiper Storage
鈥?Package
- 10 Ld MSOP
鈥?Pb-Free Plus Anneal Available (RoHS Compliant)
Pinout
TEMP
RANGE
(擄C)
-40 to +85
-40 to +85
ISL23711
(10 LD MSOP)
TOP VIEW
PACKAGE
10 Ld MSOP
(Pb-Free)
10 Ld MSOP
(Pb-Free)
PKG.
DWG. #
M10.118
M10.118
Ordering Information
PART NUMBER
(BRAND)
ISL23711WIU10Z
(AOE) (Notes 1, 2)
ISL23711UIU10Z
(AOD) (Notes 1, 2)
NOTES:
1. Add 鈥?T鈥?suffix for tape and reel.
2. Intersil Pb-free plus anneal products employ special Pb-free material
sets; molding compounds/die attach materials and 100% matte tin plate
termination finish, which are RoHS compliant and compatible with both
SnPb and Pb-free soldering operations. Intersil Pb-free products are
MSL classified at Pb-free peak reflow temperatures that meet or
exceed the Pb-free requirements of IPC/JEDEC J STD-020.
RESISTANCE
OPTION (鈩?
10K
50K
SDA
V-
GND
A1
A0
1
2
3
4
5
10
9
8
7
6
SCL
V
CC
R
L
R
W
R
H
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, Inc. Copyright Intersil Americas Inc. 2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
next