ISL90726| Datasheet

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ISL90726
Single Volatile 128-Tap XDCPTM
Data Sheet 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.

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 70 typ at VCC = 3.3V Low Power CMOS - Active Current, 200uA Max - Standby Current, 500nA Max Available RTOTAL Values = 50k, 10k

Pinout
ISL90726 (6 LD SC-70) TOP VIEW
VDD 1 GND 2 SCL 3 6 RL 5 RW 4 SDA

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* ISL90726UIE627Z-TK* PART MARKING ANF ANG RTOTAL (k) 10 50 TEMP RANGE ( C) -40 to +85 -40 to +85 PACKAGE (Pb-Free) 6 Ld SC-70 6 Ld SC-70 PKG. DWG. # P6.049 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.

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 All other trademarks mentioned are the property of their respective owners.