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how to improve the THD of OTA

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linrb

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hi,everyone.
I have done a gain-boosted amplifier,but i find the thd of it is very high. I want to know how make thd small?
 

It depends on the loading and input signal frequency
 

You might also try strengthening your CMRR? It will try and reduce your hormonics too as it wil be in common mode!
 

to safwatonline

because the OTA will be used in the SC integrator, the capacitance load is very high. I think it is too difficult to enlarge the GBW and SR
 

to safwatonline

because the OTA will be used in the SC integrator, the capacitance load is very high. I think it is too difficult to enlarge the GBW and SR
 

settling accuracy translates directly to distortion, which means that if settling accuracy is the limiting factor to the THD then u MUST enhance the settling accuracy to get better THD.
 

linrb said:
hi,everyone.
I have done a gain-boosted amplifier,but i find the thd of it is very high. I want to know how make thd small?
Click to expand...

increase the output driver can increase the thd
 

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