16-Bit_max541.pdfVIP

19-1082; Rev 2; 12/99 +5V, Serial-Input, Voltage-Output, 16-Bit DACs General Description Features MAX541/MAX542 The MAX541/MAX542 are serial-input, voltage-output, o Full 16-Bit Performance Without Adjustments 16-bit digital-to-analog converters (DACs) that operate o +5V Single-Supply Operation from a single +5V supply. They provide 16-bit perfor- mance (±1LSB INL and DNL) over temperature without o Low Power: 1.5mW any adjustments. The DAC output is unbuffered, result- o 1μs Settling Time ing in a low supply current of 0.3mA and a low offset o ? error of 1LSB. Unbuffered Voltage Output Directly Drives 60k Loads The DAC output range is 0V to VREF. For bipolar opera- tion, matched scaling resistors are provided in the o SPI/QSPI/MICROWIRE-Compatible Serial Interface MAX542 for use with an external precision op amp o Power-On Reset Circuit Clears DAC Output to 0V (such as the MAX400), generating a ±VREF output (unipolar mode) swing. The MAX542 also includes Kelvin-sense con- nections for the reference and analog ground pins to o Schmitt Trigger Inputs for Direct Optocoupler reduce layout sensitivity. Interface A 16-bit serial word is used to load data into the DAC latch. The 10MHz, 3-wire serial interface is compatible Ordering Information with SPI?/QSPI?/MICROWIRE?, and it also interfaces directly with optocouplers for applications requiring isola- INL PART TEMP. RANGE PIN-PACKAGE tion. A power-on reset circuit clears the DAC output to 0V