ISL90810_06 Datasheet, PDF (1/11 Pages) Intersil Corporation – Single Digitally Controlled Potentiometer

ISL90810
®
Single Digitally Controlled Potentiometer (XDCP™)
Data Sheet
November 10, 2006
FN8234.2
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. When powered on the ISL90810’s wiper will
always commence at mid-scale (128 tap position).
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.
Features
• 256 resistor taps - 0.4% resolution
• I²C serial interface with write/read capability
• Power-on preset to mid-scale (128 tap position)
• 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
Ordering Information
PART NUMBER
ISL90810WIU8
ISL90810WIU8Z* (Note)
ISL90810WAU8Z* (Note)
ISL90810UIU8
PART MARKING
AJL
DEN
810WA
AJK
R_TOTAL (kΩ)
10
10
10
50
TEMP RANGE (°C)
-40 to +85
-40 to +85
-40 to +105
-40 to +85
PACKAGE
8 Ld MSOP
8 Ld MSOP (Pb-free)
8 Ld MSOP (Pb-free)
8 Ld MSOP
PKG. DWG#
M8.118
M8.118
M8.118
M8.118
ISL90810UIU8Z* (Note)
DEM
50
-40 to +85
8 Ld MSOP (Pb-free) M8.118
ISL90810UAU8Z* (Note) 810UA
50
-40 to +105
8 Ld MSOP (Pb-free) M8.118
*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.
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, 2006. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.