The S3DA100K10BT40LP is a low sample rate Voltage DAC that is ideal for low frequency auxiliary applications.
The Voltage DAC is implemented using resistor-string architecture. A resistive ladder divides the reference voltage into the required steps and MOS pass gate switches select the appropriate output level. A main DAC is used in conjunction with a sub DAC to give a more favorable area resolution trade-off.
The resolution of the sub DAC and main DAC add, giving a linear area resolution trade off, as opposed to the exponentially increasing number of resistors with just one DAC. The AUXDAC_VOUT is a Single Ended voltage with a 2.0V output swing.