AD5628/AD5648/AD5668 is an 8-channel, 12/14/16-bit SPI voltage output denseDAC with low power consumption, small size, and pin compatibility. It features a built-in 5 ppm/°C on-chip reference voltage source and can operate in shutdown mode with power consumption as low as 400 nA (5 V) and 200 nA (3 V). The product has a power supply voltage range of 2.7 V to 5.5 V.