Designing an AD9833 into a product. Output will be 100 Hz to 1000 Hz. (sine wave). Using 5V supply.
The AD9833 spec says the output voltage is max of 0.68V
The ADIsimDDS simulation in my frequency range shows 2.0V peak-to-peak.
What is correct?
That is - what output voltage can I expect from the AD9833 .. Am following it with a OP AMP (Hi Z)
Thanks very much .... JCD
Please ignore Y axis units. The datasheet is correct. To gain it you will need a high speed amp - for example an AD8065 or something along those lines.
OK. Thanks .. But ..
The data sheet give a wide range: 38mV to 650 mV ..
Is it really that way. I mean .. this is a DAC with an internal 200-ohm load... one would think the output to be deterninistic and predictable ?
So that confuses me.
I am trying to set the gain on the following op amps without too much experimentation.
What am I missing here ?
Thanks ... JCD
650mV is typical peak, 38mV is typical trough of sinewave.
Thank you .. that helps very much.
/ ... JCD