The DAC is used to drive out a voltage defined by the DAC data register of the DAC-configured ports. The DAC uses either an internal or external voltage reference. The selection of the voltage reference is set for all the ports and cannot be configured on a port-by-port basis. The MAX11300 uses a 12-bit DAC, which operates at the rate of 40 μs per port. Since up to 20 ports can be configured in DAC-related modes, the minimum refresh rate per port is 1.25 kHz. No external component is required to set the offset and gain of the DAC drivers. The PIXI port driver features a wide output voltage range of ±10 V and high current capability with dedicated power supplies (AVDDIO, AVSSIO). The DAC uses either the internal or external voltage reference. Unlike the ADC, the DAC voltage reference cannot be configured on a port-by-port basis. By default, the DAC updates the DAC-configured ports sequentially. However, users can configure the DAC so that its sequence can jump to update the port that just received new data to convert. After having updated this port, the DAC continues its default sequence from that port. The user should allow a minimum of 80 μs between DAC data register updates when the jump operation mode is enabled. In addition to port-specific DAC data registers, the host can also use the same data for all DAC-configured ports using one of two preset DAC data registers.