Tek-Tips is the largest IT community on the Internet today!
Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!
-
Congratulations TugboatEng on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!
-
Virtual ground concept of OPAMP
I do not know if it has exceeded the specs. The simple inverting amplifier circuit is setup as such: http://www.phys.ualberta.ca/~gingrich/phys395/notes/node103.html where, for example: RI=2.7K Ohm, RF=2.7K Ohm. The maximum value of Vin can only be about 4 V. Any higher value will break down...- kng
- Post #6
- Forum: Circuit design
-
Virtual ground concept of OPAMP
May I ask when will the virtual ground property fail? As I was setting up the simple inverting amplifier with an opamp (LM324), with the positive node grounded, the negative node only follows the virtual ground property up to a certain voltage. Any increase that voltage, the virtual ground...- kng
- Post #4
- Forum: Circuit design
