Flexible 12-bit DAC offers 16 bit performance

22 October 2003 Analogue, Mixed Signal, LSI

Xicor's X79000-series of digital-to-analog converters (DACs) is targeted at the bias adjustment and calibration market. This family integrates a single channel, 12-bit non-volatile DAC, voltage reference with selectable gain and level shift, a configurable output buffer and general purpose EEPROM into a single chip solution. It is flexible in that it can achieve effective resolution of 14 to 16 bits by utilising its programmability and non-volatile storage at a 12-bit DAC cost. The series offers several advantages for bias and calibration applications such as data acquisition, sensor signal conditioning and power amplification bias. These devices provide several non-volatile registers whose values are restored during the power up of the device, making the device capable of operating independently of a microcontroller. The devices have 'Push-Pot' style DAC control that allows for incrementing or decrementing from the initial DAC value in either one LSB or byte or word steps, making the device ideal for calibration or human interface.

Memec SA, 011 897 8600

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