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Xicor® Expands its High Voltage Digital Potentiometer Portfolio X9319 Family

-- New 100-tap High Voltage Digital Pot

MILPITAS, California – July 28, 2003 – Xicor, Inc. (Nasdaq: XICO), a leading supplier of high performance analog and mixed-signal integrated circuits, today announced the X9319 family of 100-tap non-volatile digitally controlled potentiometers to expand its current digital potentiometer product line. The X9319 terminal voltages accommodate a voltage swing between 0V and 10V for an increased dynamic range and is well- suited for applications including offset and bias voltage adjustments in high voltage amplifier and regulator designs.

The X9319 family of potentiometers features 100-taps with 99-segmented resistors and is available in 10kO and 50kO total resistance options. Adjustments to the wiper position are made using a simple Up/Down interface and the position can be stored in the internal EEPROM for recall during device power-up. By utilizing the on-chip EEPROM, system designers lower cost by eliminating the need for an initializing microcontroller in their solution. The Up/Down interface allows efficient wiper position calibration for reduced manufacturing cost in bias and control applications.

The programmability of the X9319 is a key component in high voltage systems requiring gain, reference voltage and bias calibrations such as common mode biasing in RF power amplifiers and gain adjustments in audio applications. Other target applications include signal-conditioning circuits to set zero offset and span correction for sensors, adjustments in process controls requiring parameter retention and data acquisition systems requiring pre-configured reference voltage levels.

“Many commercial and industrial applications require the flexibility of a potentiometer with an increased voltage capability,” stated Tony Ochoa product marketing manager. “The X9319 is a costeffective solution to accommodate high voltage supply applications.”

Xicor will be offering an evaluation kit and software support for this product. Production samples are available in 8- lead SOIC and PDIP packaging with 1k unit prices starting at $1.50 USD.

Xicor Corporate Information
Xicor designs, develops and markets high performance analog mixed-signal integrated circuits used in communications, computing, networking and industrial applications. Xicor’s Mixed-Signal Products include data conversion products, power management integrated circuits, and application specific standard products and interface devices. Xicor’s programmable analog mixed-signal components regulate, control, convert and manage various voltages and currents through the use of a serial interface and internal EEPROM.

Xicor product, corporate and financial information are readily available on the World Wide Web at http://www.xicor.com

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