ISL90727

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 V_CC = 3.3V
• Low Power CMOS
- Active current, 200A max
- Standby current, 500nA max
• Available R_TOTAL Values = 50k, 10k
• Power on Preset to Midscale
• Direct Replacement for AD5247
• Packaging
- 6 Ld SC-70
• Pb-Free Plus Anneal Available (RoHS Compliant)




Pinout

Specifications

Storage temperature . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Voltage at any digital interface pin
with respect to VSS . . . . . . . . . . . . . . . . . . . . . . -0.3V to V_CC+0.3
V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +7V
Voltage at any DCP pin with
respect to V_SS . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . -0.3V to V_CC
Lead temperature (soldering, 10s). . . . . . . . . . . . . . . . . . . 300°C
I_W (10s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . ±6mA
Latchup . . . . . . . . . . . . . . . . . . . . . . . . . . Class II, Level B at 85°C
ESD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >2kV Human Body Model
Industrial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +85°C
V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.7V to 5.5V
Power rating of each DCP . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5mW
CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.

Description

The Intersil ISL90727 and ISL90728 are digitally controlled potentiometers (XDCP™). Each device consists of a resistor array, wiper switches, and a control section. The wiper position is controlled by an I2C Bus™. 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.