Post Go back to editing

AD5644 Full Scale Question

Category: Datasheet/Specs
Product Number: AD5644


It's not exactly clear from the datasheet if for the external reference case the buffer amplifier still has a gain of 2 as it has in case of using the internal reference(2.5V  for AD5644RBRMZ-5 part and it has a range  from 0-5V).

My system reference is 2.5V too,so will I see close to 5V or close to 2.5V for the maximum scale code?

Also it's a good idea to place a 1nF  decoupling capacitor on the refrence line close to the DAC?

The system reference is buffered at unity gain by an LTC2057  opamp.

Thank you,


Parents Reply Children
No Data