ISL95711
®
Digitally Controlled Potentiometer (XDCP™)
Data Sheet
August 15, 2005
FN8241.2
2
Terminal Voltage ±3V or ±5V, 128 Taps I C
Features
Serial Interface
• Non-Volatile Solid-State Potentiometer
2
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
• I C Serial Interface with Hardwire Slave Address Allows
Up to Four Devices
2
• DCP Terminal Voltage, from V- to V
CC
wiper position is controlled by a I C interface.
• 128 Wiper Tap Points
- Wiper position can be stored in nonvolatile memory and
recalled on power-up
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
• 127 Resistive Elements
between, providing 128 steps of resolution between R and
- Typical tempco ±50ppm/°C
- Ratiometric Tempco ±4ppm/°C
- End to end resistance range ±20%
L
R . The “position” of the wiper is determined by the value
H
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
• Low Power CMOS
- Standby current, 1µA
- Active current, 200µA max
interruption. The WR and the IVR can be directly written to
2
and read from using standard I C interface protocol. The
- V = 3V to 5.5V
CC
device is available in either a 10kΩ or 50kΩ version.
- V- = -3V to -5.5V
The device can be used as a three-terminal potentiometer or
as a two-terminal variable resistor in a wide variety of
applications including:
• High Reliability
- Endurance, 200,000 data changes per bit
- Register data retention, 50 years
• Industrial and automotive control
• Parameter and bias adjustments
• Amplifier bias and control
• R
Values = 10kΩ, 50kΩ
TOTAL
• Package
- 10-lead MSOP
- Pb-Free plus anneal available (RoHS compliant)
Ordering Information
Pinout
RESISTANCE
TEMP
PACKAGE
(Pb-Free)
ISL95711
PART NUMBER
OPTION (Ω) RANGE (°C)
(10-LD MSOP)
TOP VIEW
ISL95711WIU10Z
(Notes 1& 2)
10K
50K
-40 to +85
-40 to +85
10-Ld MSOP
SCL
SDA
10
9
1
2
3
4
5
ISL95711UIU10Z
(Notes 1& 2)
10-Ld MSOP
V
V-
CC
GND
R
8
L
NOTES:
R
R
A1
A0
7
6
W
H
1. Add “-T” 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.
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1
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.