The MAX5544 serial-input, voltage-output, 14-bit monotonic digital-to-analog converter (DAC) operates from a single +5V supply. The DAC output is unbuffered, resulting in low 0.3mA supply current and low 1 LSB offset error. The DAC output range is 0V to VREF. The DAC latch accepts a 16-bit serial word. A power-on reset circuit clears the DAC output to 0V (unipolar mode) when power is initially applied.
The 10MHz 3-wire serial interface is SPI™/QSPI™/MICROWIRE™ compatible and interfaces directly with optocouplers for applications requiring isolation. The MAX5544 is available in an 8-pin SO package.
Key Features
Applications/Uses
Full 14-Bit Performance Without Adjustments
+5V Single-Supply Operation
Low Power: 1.5mW
1µs Settling Time
Unbuffered Voltage Output Directly Drives 60kΩ Loads
SPI/QSPI/MICROWIRE-Compatible Serial Interface
Power-On Reset Circuit Clears DAC Output to 0V (unipolar mode)
Schmitt Trigger Inputs for Direct Optocoupler Interface
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