ISL23711 Datasheet, PDF (1/9 Pages) Intersil Corporation – Terminal Voltage +- 3V or +- 5V, 128 Taps IC Serial Interface

ISL23711
®
Volatile Digitally Controlled Potentiometer (XDCP™)
Data Sheet
August 16, 2005
FN6127.0
Terminal Voltage ±3V or ±5V, 128 Taps I²C
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 I²C 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 “position” 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 I²C
interface protocol. The device is available in either a 10kΩ or
50kΩ 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:
• Industrial and Automotive Control
• Parameter and Bias Adjustments
• Amplifier Bias and Control
Ordering Information
TEMP
PART NUMBER RESISTANCE RANGE
(BRAND)
OPTION (Ω)
(°C)
PKG.
PACKAGE DWG. #
ISL23711WIU10Z
10K
-40 to +85 10 Ld MSOP M10.118
(AOE) (Notes 1, 2)
(Pb-Free)
ISL23711UIU10Z
50K
-40 to +85 10 Ld MSOP M10.118
(AOD) (Notes 1, 2)
(Pb-Free)
NOTES:
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.
Features
• I²C Serial Interface with Hardwire Slave Address Allows
up to Four Devices
• DCP Terminal Voltage, from V- to V_CC
• 127 Resistive Elements
- Typical R_TOTAL tempco ±50ppm/°C
- Typical ratiometric tempco ±4ppm/°C
- End to end resistance range ±20%
- Wiper resistance = 70Ω typ at V_CC = 3.3V
• Low Power CMOS
- Standby current, 500nA max
- Active current, 200µA max
- V_CC = 2.7V to 5.5V
- V- = -2.7V to -5.5V
• R_TOTAL Values = 10kΩ, 50kΩ
• Volatile Wiper Storage
• Package
- 10 Ld MSOP
• Pb-Free Plus Anneal Available (RoHS Compliant)
Pinout
ISL23711
(10 LD MSOP)
TOP VIEW
SDA 1
V- 2
GND
3
A1 4
A0
5
10
SCL
9
V_CC
8
R_L
7
R_W
6
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
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