Product category:
Analogue and Mixed Signal ICs
News Release from: Xicor | Subject: X9318 family
Edited by the Electronicstalk Editorial
Team on 12 May 2003
Digital pots run to higher voltage
The X9318 family of 100-tap, nonvolatile digitally programmable potentiometers can operate at up to 8V, allowing extra dynamic range for higher-voltage applications.
The X9318 family of 100-tap, nonvolatile digitally programmable potentiometers can operate at up to 8V, allowing extra dynamic range for higher-voltage applications Operation at 8V across the potentiometer is allowed while the digital control operates between 0 and 5V
This article was originally published on Electronicstalk on 13 Jul 2004 at 8.00am (UK)
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The X9318 features a 100-tap wiper with 99 segmented resistors and total resistance of 10kohm.
Using the up/down interface, the system designer can adjust the wiper position to the setting that provides the optimal system performance.
In addition, this setting can be stored in the internal EEPROM.
The device eliminates the need for an onboard microcontroller and lowers post-trim manufacturing costs for bias and control applications.
Target applications include process controls requiring retention parameters, data acquisition systems requiring preconfigured voltage reference levels and signal conditioning circuits requiring zero offset and span correction in various sensors (such as temperature, pressure, IR, strain gauge etc).
Other applications include power amplifier biasing for RF, audio and amplifiers that require gain or phase control.
Xicor provides cost-effective digital potentiometers that have voltages greater than 5V to meet the needs of the many applications used for bias and control that require signals between 2 to 8V.
Often these higher voltages are seen in applications such as LCD bias control, DC bias adjustments of power amplifiers, gain and offset trim of amplifiers, laser diode bias control and voltage regulator output control.
Production samples of Xicor's X9318 are available in 8-lead SOIC and DIP packaging.
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