Hi Zhenrong,
I'm glad to hear that you've got to the bottom of your issue.
An R-2R DAC is not a static string (a string DAC is a static string). You can see in this figure from the datasheet that the switches are connected to either VREF or ground…
Part Number: DAC82002 Tool/software: I'm using the DAC82002 and am interested in achieving the maximum update rate possible. It appears to be only ~780 ksps (or maybe 500 ksps) per channel rather than 1 Msps and I want to confirm.
Per the datasheet…
Part Number: DAC82002 Other Parts Discussed in Thread: OPA2328 Tool/software: Hi all, I observed a phenomenon in which noise that appears to be SDIN crosstalk was output in the waveform from VOUTB of the DAC82002.
There was no particular noise on VOUTA…
Hi Koshi-san,
This PWL waveform will not be possible with DAC81408 because of-
1. slew rate for DAC81408 is only 4 V/us
2. minimum wait for the sequential update for DACx voltage output is 2.4 us
I would recommend to suggest the customer DAC80508 or…