ISL90810 Datasheet, PDF (1/11 Pages) Intersil Corporation – Low Noise/Low Power/I2C Bus/256 Taps

ISL90810
®
Single Digitally Controlled Potentiometer (XDCP™)
Data Sheet
October 13, 2005
FN8234.1
Low Noise/Low Power/I²C Bus/256 Taps
The ISL90810 integrates a digitally controlled potentiometer
(XDCP) on a monolithic CMOS integrated circuit.
The digitally controlled potentiometers are implemented with
a combination of resistor elements and CMOS switches. The
position of the wipers are controlled by the user through the
I²C bus interface. Each potentiometer has an associated
Wiper Register (WR) that can be directly written to and read
by the user. The contents of the WR controls the position of
the wiper.
The DCP can be used as three-terminal potentiometer or as
two-terminal variable resistor in a wide variety of applications
including control, parameter adjustments, and signal
processing.
Ordering Information
PART R_TOTAL TEMP
PART NUMBER MARKING (kΩ) RANGE (°C) PACKAGE
ISL90810WIU8* AJL
10 -40 to +85 8 Ld MSOP
ISL90810WIU8Z* DEN
(Note)
-40 to +85 8 Ld MSOP
(Pb-free)
ISL90810UIU8* AJK
50 -40 to +85 8 Ld MSOP
ISL90810UIU8Z* DEM
(Note)
-40 to +85 8 Ld MSOP
(Pb-free)
*Add "-TK" suffix for tape and reel.
NOTE: 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
• 256 resistor taps - 0.4% resolution
• I²C serial interface
• Wiper resistance: 70Ω typical @ 3.3V
• Standby current 5µA max
• Power supply: 2.7V to 5.5V
• 50kΩ, 10kΩ total resistance
• 8 Ld MSOP
• Pb-free plus anneal available (RoHS compliant)
Pinout
ISL90810
(8 LD MSOP)
TOP VIEW
NC
1
SCL
2
SDA
3
GND
4
8
V_CC
7
RH
6
RL
5
RW
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. 2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.