The AD5384 is a complete single-supply， 40-channel， 14-bit digital-to-analog converter （DAC） available in a 100-ball CSP_BGA package. All 40 channels have an on-chip output amplifier with rail-to-rail operation. The AD5384 includes an internal 1.25 V/2.5 V， 10 ppm/°C reference， an on-chip channel monitor function that multiplexes the analog outputs to a common MON_OUT pin for external monitoring， and an output amplifier boost mode that allows the amplifier slew rate to be optimized. The AD5384 contains a serial interface compatible with SPI， QSPI， MICROWIRE， and DSP interface standards with interface speeds in excess of 30 MHz and an I2 C-compatible interface supporting 400 kHz data transfer rate. An input register followed by a DAC register provides double buffering， allowing the DAC outputs to be updated independently or simultaneously， using the LDAC input. Each channel has a programmable gain and offset adjust register letting the user fully calibrate any DAC channel. Power consumption is typically 0.25 mA per channel with boost mode off.