To quote Microelectronic sedra smith[6th edition]
One must always provide a continuous dc path between each of the input terminals of op amp and ground in an ac- coupled amplifier. This is the case no matter how small bias input current is.
Can someone please explain the above statement. The circuit image is inserted.(click the image to see the AC Coupled circuit) The books goes on to say that the said circuit will not work without R3 connected to ground.
One must always provide a continuous dc path between each of the input terminals of op amp and ground in an ac- coupled amplifier. This is the case no matter how small bias input current is.
Can someone please explain the above statement. The circuit image is inserted.(click the image to see the AC Coupled circuit) The books goes on to say that the said circuit will not work without R3 connected to ground.