The 12-bit DAC63202 and 10-bit DAC53202 (DACx3202) are a pin-compatible family of dual-channel buffered voltage-output and current-output smart digital-to-analog converters (DACs). The DAC channels are independently configurable as voltage or current output. The DAC outputs change to Hi-Z when VDD is off; a feature useful in voltage-margining applications. These smart DACs contain nonvolatile memory (NVM), an internal reference, automatically detectable I²C or SPI interface, PMBus-compatibility in I²C mode, force-sense output, and a general-purpose input. These devices support Hi-Z power-down modes by default, which can be configured to 10 kΩ-GND or 100 kΩ-GND using the NVM. The DACx3202 have a power-on-reset (POR) circuit that makes sure all the registers start with default or user-programmed settings using NVM. The DACx3202 operate with either an internal reference, external reference, or with a power supply as the reference, and provide a full-scale output of 1.8 V to 5.5 V.

The DACx3202 devices support I²C standard mode (100 kbps), fast mode (400 kbps), and fast mode plus (1 Mbps). The I²C interface can be configured with four target addresses using the A0 pin. These devices also support specific PMBus commands such as turn on/off, margin high or low, and more. SPI mode supports a 3-wire interface by default with up to 50-MHz SCLK input. The GPIO input can be configured as SDO in the NVM for SPI read capability. The GPIO input can alternatively be configurable as LDAC, PD, STATUS, FAULT-DUMP, RESET, and PROTECT functions.

The DACx3202 also include digital slew rate control, and support standard waveform generation such as sine, cosine, triangular, and sawtooth waveforms. These devices can generate pulse-width modulation (PWM) output with the combination of the triangular or sawtooth waveform and the FB pin. The force-sense outputs of the DAC channels can be used as programmable comparators. The comparator mode allows programmable hysteresis, latching comparator, window comparator, and fault-dump to the NVM. These features enable the DACx3202 to go beyond the limitations of a conventional DAC that depends on a processor to function. As a result of processor-less operation and the smart feature set, the DACx3202 are called smart DACs.