As for your REF02 Vref,
If REF02 short Vout to GND, then what is the output voltage action?
1) drop to GND directly soon
2) when over the some load for a while, and drop to GND
Otherwise another action?
I have a question about the TEMP pin of REF02.
The explanation of the TEMP pin has the description in page15 of the REF02 data sheet.
There is a description that recommends the OpAmp of a low bias like AD8641 to be used for here.
Is this bias…
REF02 Specifications for Voltage Output at TEMP Pin was changed with Datasheet-Revision J from 550mV to 580mV.
But all following Revisions (including actual Rev.M) still show the description „…The nominal voltage at the TEMP pin (VTEMP) is approximately…
Did you follow the AD7685 layout guidelines for your circuit (placing reference decoupling capacitor close to the REF and GND pins, etc)? Please also note that as per the REF02 datasheet, "While the REF01/REF02/REF03 series of references are designed…
In general switchers can be noisy, so I'd say filter the output of the switcher to clean it up before bringing it into the REF02.
I'm going to move this into the Amplifier community in case there is more information from someone there…
What do you think of about my approach basically.
Using 2 power sources +/- 10V and +5V. Feeding Bridge with 10V and op-amps with +/-10V. Using 5 volts to power DAC. Use +/-10V input type ADC.
Using 5V only. Excite…