1
®
FN8229.3
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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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.
ISL90461
Digitally Controlled Potentiometer (XDCP™)
Single Volatile 32-Tap XDCP
The Intersil ISL90461 is a digitally controlled potentiometer
(XDCP). Configured as a variable resistor, the device
consists of a resistor array, wiper switches, a control section,
and volatile memory. The wiper position is controlled by a 2-
pin Up /Down interface.
The potentiometer is implemented by a resistor array
composed of 31 resistive elements and a wiper switching
network. Between each element and at either end are tap
points accessible to the wiper terminal. The position of the
wiper element is controlled by the CS
and U/D inputs.
The device can be used in a wide variety of applications
including:
• LCD contrast control
• Parameter and bias adjustments
• Industrial and Automotive Control
• Transducer adjustment of pressure, temperature, position,
chemical, and optical sensors
• Laser Diode driver biasing
• Gain control and offset adjustment
Features
• Volatile solid-state potentiometer
• 2-pin UP/DN interface
• DCP terminal voltage, 2.7V to 5.5V
• Tempco 35 ppm/
°C typical
• 32 wiper tap points
• Low power CMOS
- Active current, 25µA max.
- Supply current 0.3µA
• Available R
TOTAL
values = 10kΩ, 50kΩ, 100kΩ
• Temperature Range
-40°C to +85°C
• Packages
- 6 Ld SC-70, SOT-23
• Pb-Free Plus Anneal Available (RoHS Compliant)
Pinout
ISL90461
(SOT-23, SC-70)
TOP VIEW
VDD
GND
U/D
CS
RL
RH
Ordering Information
PART NUMBER PART MARKING R
TOTAL
(K) TEMP RANGE (°C) PACKAGE PKG. DWG. #
ISL90461WIE627-TK AJP 10 -40 to +85 6 Ld SC-70 P6.049
ISL90461WIE627Z-TK (See Note) DEE -40 to +85 6 Ld SC-70 (Pb-free) P6.049
ISL90461WIH627-TK AJY -40 to +85 6 Ld SOT-23 P6.064
ISL90461WIH627Z-TK (See Note) DEF -40 to +85 6 Ld SOT-23 (Pb-free) P6.064
ISL90461UIE627-TK AJR 50 -40 to +85 6 Ld SC-70 P6.049
ISL90461UIE627Z-TK (See Note) DEC -40 to +85 6 Ld SC-70 (Pb-free) P6.049
ISL90461UIH627-TK AKA -40 to +85 6 Ld SOT-23 P6.064
ISL90461UIH627Z-TK (See Note) DED -40 to +85 6 Ld SOT-23 (Pb-free) P6.064
ISL90461TIE627-TK AJQ 100 -40 to +85 6 Ld SC-70 P6.049
ISL90461TIE627Z-TK (See Note) DEA -40 to +85 6 Ld SC-70 (Pb-free) P6.049
ISL90461TIH627-TK AJZ -40 to +85 6 Ld SOT-23 P6.064
ISL90461TIH627Z-TK (See Note) DEB -40 to +85 6 Ld SOT-23 (Pb-free) P6.064
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
Data Sheet October 14, 2005
