Overview
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.
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 VCC = 3.3V
- Low Power CMOS
- Active Current, 200µA Max
- Standby Current, 500nA Max
- Available RTOTAL Values = 50kΩ, 10kΩ
- Power-on Preset to Midscale
- Packaging
- 6 Ld SC-70
- Pb-Free (RoHS Compliant)
Comparison
Applications
Design & Development
Software & Tools
Boards & Kits
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.
Support
Support Communities
FAQs
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What is the wiper register address for the ISL90727 and ISL90728?
Question: What is the wiper register address for the ISL90727 and ISL90728? Answer: The ISL90727 and ISL90728 wiper register is address 00. The device will not acknowledge any instructions to a different address.
Jan 1, 1970 -
What is the default wiper tap position for ISL9072x series of DCPs?
Question:What is the default wiper tap position for these parts? Answer: ISL90727 and ISL90728: The default wiper tap position is 64.
Jan 1, 1970