WM2616

· 12-bit voltage output DAC
· Single supply from 2.7V to 5.5V
· DNL ±0.5 LSB, INL ±1.9 LSB
· Very low power consumption (3V supply):
    - 900mW, slow mode
    - 2.1mW, fast mode
· TMS320, (Q)SPIä, and Microwireä compatible serial interface
· Programmable settling time of 4ms or 12ms typical
· High impedance reference input buffer

· Battery powered test instruments
· Digital offset and gain adjustment
· Battery operated/remote industrial controls
· Machine and motion control devices
· Wireless telephone and communication systems
· Speech synthesis
· Arbitrary waveform generation

The WM2616 is a 12-bit voltage output, resistor string digital-toanalogue converter that can be powered down under software control. Power down reduces current consumption to 10nA.

The device has been designed to interface efficiently to industry standard microprocessors and DSPs, including the TMS320 family. The WM2616 is programmed with a 16-bit serial word comprising 4 control bits and 12 data bits.

Excellent performance is delivered with a typical DNL of 0.5LSBs. The settling time of the DAC is programmable to allow the designer to optimize speed versus power dissipation. The output stage is buffered by a x2 gain rail-to-rail amplifier, which features a Class AB output stage.

The WM2616 is available in an 8-pin SOIC package. Commercial temperature (0° to 70°C) and Industrial temperature (-40° to 85°C) variants are supported.