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Input Bias Current Return path

Question asked by kbm10 on Jun 8, 2015
Latest reply on Jun 10, 2015 by Gustavo.Castro
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Hi,

 

I am looking to use an AC-coupled front-end. However, I do not want to use the resistor in the front-end to provide input bias current return path. I also do not want to use inductors. Are there any amplifiers available which can do this ? Also, why is it necessary to provide the return path for small bias current as in CMOS opamps such AD8253

 

Thanks in advance

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