廬
ISL95711
Digitally Controlled Potentiometer (XDCP鈩?
Data Sheet
September 5, 2006
FN8241.3
Terminal Voltage 鹵2.7V or 鹵5V, 128 Taps
I
2
C Serial Interface
The Intersil ISL95711 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 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). This register
has an associated non-volatile Initial Value Register (IVR).
The value stored in the IVR will be written into the WR at
power-up, allowing wiper position recall after power
interruption. The WR and the IVR 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?Non-Volatile Solid-State Potentiometer
鈥?I
2
C Serial Interface with Hardwire Slave Address Allows
Up to Four Devices per bus
鈥?DCP Terminal Voltage, from V- to V
CC
鈥?128 Wiper Tap Points
- Wiper position can be stored in nonvolatile memory and
recalled on power-up
鈥?127 Resistive Elements
- Typical Rtotal tempco 鹵50ppm/擄C
- Ratiometric Tempco 鹵4ppm/擄C
- End to end resistance range 鹵20%
鈥?Low Power CMOS
- Standby current, 1碌A(chǔ)
- Active current, 200碌A(chǔ) max
- V
CC
= 2.7V to 5.5V
- V- = -2.7V to -5.5V
鈥?High Reliability
- Endurance, 200,000 data changes per bit
- Register data retention, 50 years
鈥?R
TOTAL
Values = 10k鈩? 50k鈩?/div>
鈥?Package
- 10 Ld MSOP
- Pb-free plus anneal (RoHS compliant)
Pinout
ISL95711
(10 LD MSOP)
TOP VIEW
SDA
V-
GND
A1
A0
SCL
V
CC
R
L
R
W
R
H
1
2
3
4
5
10
9
8
7
6
Ordering Information
PART NUMBER (Notes 1, 2)
ISL95711WIU10Z
ISL95711UIU10Z
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.
PART MARKING
AKO
AKQ
RESISTANCE OPTION (鈩?
10k
50k
TEMP. RANGE (擄C)
-40 to +85
-40 to +85
PACKAGE (Pb-Free)
10 Ld MSOP
10 Ld MSOP
PKG. DWG. #
M10.118
M10.118
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. 2005-2006. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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