AD5371 is a 40-channel, 14-bit, serial input, voltage output DAC with system calibration function, user-programmable offset and gain, channel grouping and addressing features, thermal shutdown function, DSP/microcontroller-compatible serial interface, SPI/LVDS serial interface, 2.5 V to 5.5 V digital interface, digital reset (RESET), clear function to user-defined SIGGNDx, simultaneous update of DAC outputs