S
Scott
I have two non inverting op amps cascaded together, the first is 60dB the second is 20dB. When simulated and tested separately the gains are correct, but when I cascade them I only get 48dB in simulation and the bench. I’m within the band width of the op amps, the max gain in ac sweep simulation is 48dB. The 60dB stage uses an LT1007 with 715k and 680 Rs, the 20dB stage is a TL081 with 634k and 63.4k Rs. Any help would be greatly appreciated.