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poles and zeroes basics Type-III compensation in 2 Stage CMFB amp

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Safiya

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Hi, what are poles and zeroes in a compensation network like Type-3 compensation for 2 stage cmfb amp.
how we can boost phase margin without affecting Bandwidth. by using miller compensation cap, BW decreases.
thanks
Safiya
 

Hi Safiya
Make sure cmfb opamp has BW larger than main opamp BW to avoid decresing in your BW. To save power I use Ahuja compensation technique better than Miller compensation
 
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