The 12-bit DAC63001 and DAC63002, and the 10‑bit DAC53001 and DAC53002 (collectively referred to as the DACx300x) are a pin-compatible family of ultra-low-power, single-channel and dual-channel, buffered voltage-output and current-output smart digital-to-analog converters (DACs). The DACx300x devices support Hi-Z power-down mode and Hi-Z output during power-off conditions. The DAC outputs provide a force-sense option for use as a programmable comparator and current sink. The multifunction GPIO, function generation, and NVM enable these smart DACs forprocessor-lessapplications and design reuse. These devices automatically detect I2C, PMBus, and SPI interfaces and contain an internal reference. The feature set combined with the tiny package and ultra-low power make these smart DACs an excellent choice for applications such as land mobile radios, pulse oximeters, notebook PCs, and other battery-operated applications for biasing, calibration, and waveform generation. The 12-bit DAC63001 and DAC63002, and the 10‑bit DAC53001 and DAC53002 (collectively referred to as the DACx300x) are a pin-compatible family of ultra-low-power, single-channel and dual-channel, buffered voltage-output and current-output smart digital-to-analog converters (DACs). The DACx300x devices support Hi-Z power-down mode and Hi-Z output during power-off conditions. The DAC outputs provide a force-sense option for use as a programmable comparator and current sink. The multifunction GPIO, function generation, and NVM enable these smart DACs forprocessor-lessapplications and design reuse. These devices automatically detect I2C, PMBus, and SPI interfaces and contain an internal reference. The feature set combined with the tiny package and ultra-low power make these smart DACs an excellent choice for applications such as land mobile radios, pulse oximeters, notebook PCs, and other battery-operated applications for biasing, calibration, and waveform generation.