Hello,
From the User manuel on the page B-1,
The NI 6703 devices have one 16-bit DAC that is time-division multiplexed
to create 16 voltage output and two calibration channels. The channels are
sampled at a rate of 50 μs per channel, meaning a channel can change value
a maximum of 0.9 ms after it has been updated by software.
But be careful, the NI 670x devices are software-timed voltage output. The transfer rates of the devices depend on the computer and
software. The rates may vary due to programming language and code
efficiency, CPU utilization, transfer methods, and so on.
Best regards
Nick_CH