The MAX5753/MAX5754/MAX5755 are 32-channel, 14bit, voltage-output, digital-to-analog converters (DACs). All devices accept a 3V external reference input. The devices include an internal offset DAC that allows all the outputs to be offset and a ground-sensing function, allowing output voltages to be referenced to a remote ground. A 33MHz SPITM-/QSPITM-/MICROWIRETM- and digital signal processor (DSP)-compatible serial interface controls the MAX5753/MAX5754/MAX5755. Each DAC has a double-buffered input structure that helps minimize the digital noise feedthrough from the digital inputs to the outputs, and allows for synchronous or asynchronous updating of the outputs. The MAX5753/MAX5754/MAX5755 also provide a DOUT that allows for read-back or daisy chaining multiple devices. The devices provide separate power inputs for the analog and digital sections and provide separate power inputs for the output buffer amplifiers. The MAX5753/MAX5754/MAX5755 include proprietary deglitch circuits to prevent output glitches at power-up and eliminate the need for power sequencing. The devices provide a software-shutdown mode to allow efficient power management. The MAX5753/MAX5754/MAX5755 consume 50A of supply current in shutdown.