ee_wmxaa
Newbie level 6
dc offset cancellation
Hi,all
I am doing a project on designing a variable gain amplifier (VGA)under UWB specification. I have conducted several literature research. I found that they included a dc offset cancellation circuit in most of the previous work. And after adding this circuit, the frequency response of the VGA will look like a bandpass filter. I wonder what is dc offset and why the frequency response looks like a bandpass filter.
Thank you
Hi,all
I am doing a project on designing a variable gain amplifier (VGA)under UWB specification. I have conducted several literature research. I found that they included a dc offset cancellation circuit in most of the previous work. And after adding this circuit, the frequency response of the VGA will look like a bandpass filter. I wonder what is dc offset and why the frequency response looks like a bandpass filter.
Thank you