The DAC80502, DAC70502, DAC60502 (DACx0502) family of devices are dual-channel, buffered voltage output, 16-bit, 14-bit, or 12-bit digital-to-analog converters (DACs), respectively. These devices include a 2.5-V, 5-ppm/˚C internal reference, giving full-scale output voltage ranges of 1.25 V, 2.5 V, or 5 V. The DACx0502 devices incorporate a power-on-reset circuit that makes sure that the DAC output powers up at zero scale or midscale, depending on status of the RSTSEL pin, and remains at that scale until a valid code is written to the device.
The digital interface of the DACx0502 can be configured to SPI or I2C mode using the SPI2C pin. In SPI mode, the DACx0502 family uses a 3-wire serial interface that operates at clock rates up to 50 MHz. In I2C mode, the DACx0502 devices operate in standard (100 kbps), fast (400 kbps), and fast+ (1.0 Mbps) modes.