Hi,
Here's a diagram of one way to do this.
Thanks MrAl for your assistance, You are indeed very helpful.
Connect your adjustment pot connected as a positive voltage divider to the input of that upper op amp.
What do you mean by the POSITIVE voltage divider? Are you mean that I have to use one of the side pins of the pot to the GROUND instead of the Negative voltage so that do not let the Pot voltage to reach to the negative voltages?
Connect capacitors to the junctions of the resistors to couple your AC signal in. The junction of the resistors will be your output too.
Actually I do not know why you decided to use a resistor divider at the output of the op amps?? Honestly I was thinking of a similar circuit as your pic here in this post before starting this thread but by using 4 OP-Amps One as non inverting having 2 the same resistors as the Rin and Rf and then use an inverting OP-amps connected just like the bottom OP-amps of your post But do not use any divider at the output, Then use another pair the same as I tol....
Shown is one positive type circuit and one negative type circuit. To get the other circuits, connect more resistors to the op amp outputs.
Sorry I can not understand your meaning just right. Are you meaning that I do not need another pair of op-amps?!
The matching of the input/outputs are related to the precision of the resistors, but if you need really good accuracy on the DC setting you could make each lower (or upper, or both) resistor a pot itself too, and adjust it once to sync all the outputs. Once done, you only have to adjust the input pot to change all of the settings.
I just want the same voltage to create the carrier level of a SSB circuit, It mean that I need almost accurate DC-Offsets...