Suitable opamp for PLL filter

mohamis288

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I want to choose an opamp for my PLL filter design. Initially, I have chosen OPA211. But, I want to improve my design specially lock time and phase noise. Can you please tell what should I pay attention to in opamp parameters? Can you please provide me with some examples about appropriate opamp for this purpose? Our maximum closed-loop bandwidth is about 2 MHz.
 

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Do you know what your filter specs look like ? What PLL are you going to use ? That will
tell us what phase detector type you plan to use.

You mention goals of lock time and phase noise, but no values .....

Maybe a general comment what PLL is being used for....


Regards, Dana.,
 

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