I am wondering what the best way to design a balanced input stage for a differential amp is. I need to reinvert the inverted line and combine the noninverted signal with it to cancel out mutual line noise. So, do I slap a transistor on the inverted line such that the base goes to the input, the emmitter goes to negative, and the collector goes to a big resistor and the now reinverted signal out? Then the inverted signal out would connect to the noninverted in. Or is there a better way of doing it, or any special conciderations?
Also, I need both balanced input as well as output. I am guessing it is better to have a single feedback loop, so I'd convert to unbalanced for the input stage, then back to balanced for the output stage by the same method. Does that make sense?
Will
Also, I need both balanced input as well as output. I am guessing it is better to have a single feedback loop, so I'd convert to unbalanced for the input stage, then back to balanced for the output stage by the same method. Does that make sense?
Will