Overview
Description
The Intersil X9318 is a digitally controlled potentiometer (XDCP). The device consists of a resistor array, wiper switches, a control section, and nonvolatile memory. The wiper position is controlled by a 3-wire interface. The potentiometer is implemented by a resistor array composed of 99 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 CS, U/D, and INC inputs. The position of the wiper can be stored in nonvolatile memory and then be recalled upon a subsequent power-up operation. The device can be used as a three-terminal potentiometer for voltage control or as a two-terminal variable resistor for current control in a wide variety of applications.
Features
- Solid-state potentiometer
- 3-wire serial interface
- Terminal voltage, 0 to +8V
- 100 wiper tap points
- Wiper position stored in nonvolatile memory and recalled on power-up
- 99 resistive elements
- Temperature compensated
- End to end resistance range ± 20%
- Low power CMOS
- VCC = 5V
- Active current, 3mA max.
- Standby current, 1mA max.
- High reliability
- Endurance, 100,000 data changes per bit
- Register data retention, 100 years
- RTOTAL value = 10kΩ
- Packages
- 8 Ld SOIC and DIP
- Pb-free plus anneal available (RoHS compliant)
Comparison
Applications
- LCD bias control
- DC bias adjustment
- Gain and offset trim
- Laser diode bias control
- Voltage regulator output control
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
Pkg. Type |
Carrier Type |
Moisture Sensitivity Level (MSL) |
Price (USD) | 1ku |
Buy / Sample |
|
|---|---|---|---|---|---|
| Part Number | |||||
X9318WS8IZ Active Samples Available
Buy Now
|
SOICN | Tube | 1 | Get Samples, | |
| SOICN | Reel | 1 | |||
X9318WS8Z Active Samples Available
Buy Now
|
SOICN | Tube | 1 | 3.337 | Get Samples, |
| SOICN | Reel | 1 |
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