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how to get high psrr for BGR

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lhlbluesky

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bgr psrr

ple tell me, how to get high psrr for bandgap reference?

are there some methods?
 

For DC, you can boost PSRR by adding an opamp into the loop.
For high freq, you can put a cap between the PMOS current mirror's gate to VDD (if you use PMOS current mirror to distribute the current).

For VDD PSR, is it better to use PMOS input opamp? Anyone knows? Thanks.
 

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