The DAC081S101 is a full-featured, general purpose 8-bit voltage-output digital-to-analog
converter (DAC) that can operate from a single +2.7V to 5.5V supply and consumes just 175 µA of
current at 3.6 Volts. The on-chip output amplifier allows rail-to-rail output swing and the three
wire serial interface operates at clock rates up to 30 MHz over the specified supply voltage range
and is compatible with standard SPI,
QSPI, MICROWIRE and DSP interfaces. Competitive devices are limited to 20 MHz clock rates at supply
voltages in the 2.7V to 3.6V range.
The supply voltage for the DAC081S101 serves as its voltage reference, providing the
widest possible output dynamic range. A power-on reset circuit ensures that the DAC output powers
up to zero volts and remains there until there is a valid write to the device. A power-down feature
reduces power consumption to less than a microWatt.
The low power consumption and small packages of the DAC081S101 make it an excellent
choice for use in battery operated equipment.
The DAC081S101 is a direct replacement for the AD5300 and is one of a family of pin
compatible DACs, including the 10-bit DAC101S101 and the 12-bit DAC121S101. The DAC081S101 operates
over the extended industrial temperature range of −40°C to +105°C.
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