The DAC80508, DAC70508 and DAC60508 are a pin-compatible family of low power,
eight-channel, buffered voltage-output digital-to-analog converters (DACs) with 16-, 14- and 12-bit
resolution. These devices include a 2.5 V, 5 ppm/°C internal reference and user selectable gain
configuration giving full scale output voltages of 1.25 V (gain = ½), 2.5 V (gain = 1) or 5 V (gain
= 2). The device operates from a single 2.7 V to 5.5 V supply, is ensured monotonic and provides
high linearity of ±1 LSB INL.
Communication to the DACx0508 is done through a 4-wire serial interface that operates at
clock rates up to 50 MHz. The VIO pin enables serial interface operation
from 1.7 V to 5.5 V. The DACx0508 flexible interface enables operation with a wide range of
industry standard microprocessors and microcontrollers.
The DACx0508 incorporates a power-on-reset circuit that ensures the DAC outputs power up
and remain at either zero scale or midscale until a valid code is written to the device. The device
consumes low current of 0.7 mA/channel at 5.5 V. A per-channel power-down feature reduces the
device current consumption to 15 µA.
The DACx0508 is characterized for operation over the temperature range of –40°C to 125°C
and is available in small 3 mm × 3 mm QFN package.
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