Hi all,
I just built a copy of the simple op-amp design from http://www.allaboutcircuits.com/vol_6/chpt_5/17.html
It seems to be working great, Except one (rather large) problem, which is that although I am giving it +10 VDC and -10 VDC, it cannot swing down past about 1.2V into the negative.
I am new enough to electronics that I have really no idea why that would happen or even where to start debugging, other than 1.2 V looks like 2 diode drops to me....
Any help would be greatly appreciated. Thanks!
I just built a copy of the simple op-amp design from http://www.allaboutcircuits.com/vol_6/chpt_5/17.html
It seems to be working great, Except one (rather large) problem, which is that although I am giving it +10 VDC and -10 VDC, it cannot swing down past about 1.2V into the negative.
I am new enough to electronics that I have really no idea why that would happen or even where to start debugging, other than 1.2 V looks like 2 diode drops to me....
Any help would be greatly appreciated. Thanks!