I have to make a transfer function via op amps G(s)= 100*20*100/((s+10)(s+20)(s+100)).I have figured that i need 3 stages of that circuit(obviously the circuit below is only for the first pole 100/(s+10))
simulate this circuit – Schematic created using CircuitLab
so i used a LM348 and used the 3 741 it contains .When i omit the capacitor i get correctly for square input of 2 V peak-peak at the output the same square but max value is 10 V because ofcourse my transfer function has 10 V/V voltage gain. However when i connect the capacitors my output is no longer square its sth like sin or triangle and very low voltage , about 300 mV , i believe its something like noise .So the question is this , why capacitor mess up so much my output?
