MAX5717 and MAX5719, 16- and 20-Bit Voltage DACs

Analog Devices' MAX5717 and MAX5719 are serial-input, unbuffered, 16- and 20-bit voltage-output, unipolar, digital-to-analog converters (DACs) with integrated feedback resistors that allow bipolar operation when used with an external operational amplifier. These DACs provide low-glitch energy, low noise, tight bipolar resistor matching, and high accuracy. The DACs feature ±4 LSB INL (maximum, 16-bit) over the temperature range of -40°C to 105°C. The integrated precision setting resistors make the MAX5717 and MAX5719 easy to use. The DAC’s feature a 50 MHz, 3-wire SPI™, QSPI™, MICROWIRE™, and DSP-compatible serial interface.

On power-up the output resets to zero-scale, providing additional safety for applications which drive valves or other transducers that need to be off on power-up. The DAC output settles in 750 ns and has a low offset and gain drift of ±0.1 ppm/°C of FSR.

The MAX5717 is functionally similar to the MAX542 but with significantly faster settling time. The MAX5719 provides a similar speed improvement as well as an increase in resolution to 20 bits.