Single Volatile 128-Tap Digitally Controlled Potentiometer (XDCP™)
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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
Applications
- Mechanical Potentiometer Replacement
- Transducer Adjustment of Pressure, Temperature,
- Position, Chemical, and Optical Sensors
- RF Amplifier Biasing
- LCD Brightness and Contrast Adjustment
- Gain Control and Offset Adjustment
Documentation
= Featured Documentation
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| Type | Title | Date |
| Datasheet | PDF 505 KB | |
| Manual - Development Tools | PDF 1.40 MB | |
| Price Increase Notice | PDF 208 KB | |
| Product Advisory | PDF 363 KB | |
| Product Change Notice | PDF 201 KB | |
| Application Note | PDF 281 KB | |
| Application Note | PDF 251 KB | |
| Application Note | PDF 503 KB | |
| Application Note | PDF 287 KB | |
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Design & Development
Software & Tools
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
Processing table
ISL90728UIE627Z-TK Active Samples Available |
SC70 | Reel | 1 | 0.7908 | Get Samples, |
ISL90728WIE627Z-TK Active Samples Available |
SC70 | Reel | 1 | 0.7908 | Get Samples, |
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