The MAX5236/MAX5237 feature 13.5MHz a 3-wire serial interface compatible with SPITM/QSPITM/and MICROWIRETM. Each DAC input is organized as an input register followed by a DAC register. A 16-bit shift register loads data into the input registers. Input registers update the DAC registers independently or simultaneously. In addition, programmable control bits allow power-down with 1k or 200k internal loads. The MAX5236/MAX5237 are fully specified over the extended industrial temperature range (-40C to +85C) and are available in space-saving 10-pin MAX packages.