New Product News

The X79000 is a new series of DACs targeted at the bias adjustment and calibration market. This family of products integrates a single-channel, 12-bit nonvolatile DAC, voltage reference with selectable gain and level shift, a configurable output buffer, and general-purpose EEPROM into a single-chip solution. The flexibile X79000 series can achieve effective resolution of 14 to 16 bits by using its programmability and nonvolatile storage at a 12-bit DAC cost.

X7900 devices provide several nonvolatile registers whose values are restored during power-up, making them capable of operating independently of a microcontroller. Users can configure a nonvolatile initial value—a Push-Pot style DAC control—that allows incrementing or decrementing from the initial DAC value in either one least significant bit (or byte) or word steps, and nonvolatile selection of both the upper and lower DAC ladder voltages using a single internal voltage reference. A serial interface allows for on-the-fly selection of these values without any hardware changes using an internal variable gain and level-shift circuits. This provides digital selection for course- or fine-voltage output span.

The devices also feature an unbuffered or buffered output (configurable via external feedback) options and 64 bytes of general-purpose EEPROM to store manufacturing information, calibration coefficients, and other important information.

The X79000, X79001, and X79002 in 20-lead TSSOP cost $2.75, $2.70, and $2.65, respectively, in 1000-piece quantitles.

Xicor, Inc.
www.xicor.com