Selecting a new OP amp

[Pubudu]

HI ,

I want to measure a small squre pulse signal (amplitude ~ 200 mV and
frequency in between 0.1 Hz and 2 kHz) across a small resistance in a
circuit. I want to make instrumental amplifier. Can some one tell me
how to select the right OPamp for this. It is not necessary to select
the gain at first, but I can cascade couple of them.
I need explanations for such as CMMR , Gain , frequency responce etc

Thank you,
Pubudu

 

[Rich Grise]

I want to measure a small squre pulse signal (amplitude ~ 200 mV and
frequency in between 0.1 Hz and 2 kHz) across a small resistance in a
circuit. I want to make instrumental amplifier. Can some one tell me
how to select the right OPamp for this. It is not necessary to select
the gain at first, but I can cascade couple of them.
I need explanations for such as CMMR , Gain , frequency responce etc

Your best bet would be to go back and review this year's lessons in the
textbook.

Maybe borrow some notes from someone who actually listened at the lectures.

Good Luck!
Rich