DESCRIPTION

The WM2618 is a dual 12-bit voltage output, resistor string, digital-to-analogue converter. A power-on-reset function ensures repeatable start-up conditions.

The device has been designed to interface efficiently to industry standard microprocessors and DSPs, including the TMS320 family. The WM2618 is programmed with a 16-bit serial word. The WM2618 has a simple-to-use single 2.7V to 5.5V supply. The digital inputs feature Schmitt triggers for high noise immunity.

FEATURES

• Two 12-bit voltage output DACs

• Single supply from 2.7V to 5.5V supply operation

• DNL ±0.5 LSB, INL ±1.9

• Low power consumption

- 3mW typical in slow mode

- 8mW typical in fast mode

• TMS320, (Q)SP™, and Microwire compatible serial interface

• Programmable settling time 4µs or 12µs typical

APPLICATIONS

• Battery powered test instruments

• Digital offset and gain adjustment

• Battery operated/remote industrial controls

• Machine and motion control devices

• Cellular telephones

• Wireless telephone and communication systems

• Speech synthesis

• Arbitrary waveform generation