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