wangkes9
Member level 2
I want to design a operation amplifier with differential input ,single output.
And the gain is about 150 or higher at DC.But I want the AC gain is as small as possible.
How can I realize it. If using a common differential circuits with a Cap at output. The problem is , I can not offer large Capacitor in IC ( only 10pF) ,so the bandwidth is too high. Maybe I can increase the Cap value using Miller theory , but the cap is still too small.
How can I do .Thanks a lot
And the gain is about 150 or higher at DC.But I want the AC gain is as small as possible.
How can I realize it. If using a common differential circuits with a Cap at output. The problem is , I can not offer large Capacitor in IC ( only 10pF) ,so the bandwidth is too high. Maybe I can increase the Cap value using Miller theory , but the cap is still too small.
How can I do .Thanks a lot