Texas Instruments DACx0502 Dual Voltage-Output DACs

The DACx0502 offers a linearity of < 1LSB. The high accuracy combined with the tiny package makes the DACx0502 an excellent choice for applications such as gain and offset calibration, current or voltage set point generation, and power supply control. These devices include a 2.5V, 5ppm/°C internal reference, giving full-scale output voltage ranges of 1.25V, 2.5V, or 5V. The Texas Instruments DACx0502 incorporates a power-on-reset circuit that ensures the DAC output powers up at zero scale or midscale based on the status of the RSTSEL pin and remains at that scale until a valid code is written to the device.

The DACx0502's digital interface can be configured to SPI or I²C mode using the SPI2C pin. In SPI mode, the DACx0502 uses a versatile 3-wire serial interface that operates at clock rates up to 50MHz. In I²C mode, the DACx0502 operates in standard (100kbps), fast (400kbps), and fast+ (1.0Mbps) modes.