MAX5235

19-2330; Rev 0; 1/02 Single-Supply 3V/5V, Voltage-Output, Dual, Precision 12-Bit DACs General Description The MAX5234/MAX5235 precision, dual-output, 12-bit digital-to-analog converters (DACs) consume only 360µA from a single 5V (MAX5235) or 325µA from a single 3V (MAX5234) supply. These devices feature output buffers that swing Rail-to-Rail®. The internal gain amplifiers maximize the dynamic range of the DAC output. The MAX5234/MAX5235 feature a 13.5MHz 3-wire serial interface compatible with SPI™, QSPI™, and MICROWIRE™. 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 1kΩ or 200kΩ internal loads. The MAX5234/MAX5235 are fully specified over the extended industrial temperature range (-40°C to +85°C) and are available in space-saving 10-pin µMAX packages. o Guaranteed 1/2LSB INL (max) o Low Supply Current 325µA (Normal Operation) 0.4µA (Full Power-Down Mode) o Single-Supply Operation 3V (MAX5234) 5V (MAX5235) o Space-Saving 10-Pin µMAX Package o Output Buffers Swing Rail-to-Rail o Power-On Reset Clears Registers and DACs to Zero o Programmable Shutdown Modes with 1kΩ or 200kΩ Internal Loads o Resets to Zero o 13.5MHz SPI/QSPI/MICROWIRE-Compatible, 3-Wire Serial Interface o Buffered Output Drives 5kΩ || 100pF Features MAX5234/MAX5235 Applications Indust...