3v/5v, 13-bit, Serial Voltage-output Dacs With Internal Reference

The MAX5130 MAX5131 are low-power, 13-bit, voltage- output digital-to-analog converters (DACs) with an inter- nal precision bandgap reference and output Amplifier The MAX5130 operates on a single +5V supply with an internal reference of +2.5V, and is capable of a +4.0955V full-scale output. If necessary, the user CAN override the on-chip, <10ppm/C Voltage Reference with an external reference. The MAX5131 operating on +3V, delivers its +2.04775V full-scale output with an internal precision ref- erence of +1.25V. Both devices draw only 500A of sup- ply current, which reduces to 3A in power-down mode. In addition, their power-up reset feature allows for a user- selectable initial output state of either 0V or midscale and minimizes output voltage glitches during power-up. The serial Interface is compatible with SPI, QSPI, and MICROWIRE, which makes the MAX5130 MAX5131 suitable for cascading multiple devices. Each DAC has a double-buffered input organized as an input Register fol- lowed by a DAC Register A 16-bit Shift register loads data into the input Register The DAC Register may be updated independently or simultaneously with the input Register Both devices are available in a 16-pin QSOP package and are specified for the extended-industrial (-40C to +85C) temperature range. For pin-compatible 14-bit upgrades, see the MAX5170 MAX5172 data sheet; for pin-compatible 12-bit versions, see the MAX5120 MAX5121 data sheet. By Maxim Integrated Products