ISL90726 Datasheet, PDF (1/8 Pages) Intersil Corporation – Digitally Controlled Potentiometer XDCP

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Data Sheet
ISL90726
Single Volatile 128-Tap XDCP™
August 26, 2008
FN8244.4
Digitally Controlled Potentiometer (XDCP)
The Intersil ISL90726 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. 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 SDA and SCL inputs.
Pinout
ISL90726
(6 LD SC-70)
TOP VIEW
VDD 1
GND 2
SCL 3
6 RL
5 RW
4 SDA
Features
• Volatile Solid-State Potentiometer
• I²C Serial Bus Interface
• DCP Terminal Voltage, 2.7V to 5.5V
• Low Tempco
- Rheostat - 45 ppm/°C typical
- Divider - 15 ppm/°C typical
• 128 Wiper Tap Points
- Wiper Resistance 70Ω typ at V_CC = 3.3V
• Low Power CMOS
- Active Current, 200µA Max
- Standby Current, 500nA Max
• Available R_TOTAL Values = 50kΩ, 10kΩ
• Power on Preset to Midscale
• Packaging
- 6 Ld SC-70
• Pb-Free (RoHS compliant)
Applications
• Mechanical Potentiometer Replacement
• Transducer Adjustment of Pressure, Temperature,
Position, Chemical, and Optical Sensors
• Laser Diode and LED Biasing
• LCD Brightness and Contrast Adjustment
• Gain Control and Offset Adjustment
• DDR3 Margining
Ordering Information
PART NUMBER
(Note)
ISL90726WIE627Z-TK*
PART MARKING
ANF
R_TOTAL (kΩ)
10
TEMP RANGE
(°C)
-40 to +85
PACKAGE
(Pb-Free)
6 Ld SC-70
PKG. DWG. #
P6.049
ISL90726UIE627Z-TK* ANG
50
-40 to +85
6 Ld SC-70
P6.049
*Please refer to TB347 for details on reel specifications.
NOTE: These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100%
matte tin plate plus anneal (e3 termination finish, which is 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, 2008. All Rights Reserved
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