, tl07x needs +/- 7V to turn on and swing that high.. its not a rail to rail opamp. according to the data sheet I just looked at. 9V batteries would be a good start, plus a pair of 7805/7905 for the offset pot. 7805 and 7905 need at least 7 volts and -7v to turn on...
May I suggest "Art of Electronics" by Horrowitz and Hill . Google books has it as a limited preview. Also "Opamps" by David Terrell
Rules of the opamp:
The inputs will always try to drive the output so that there is 0 volts between them.
The inputs in theory will have a impedance of infinity and almost no current will ever flow in them
The output in theory will have almost no impedance and is a current source.
Unless its a rail to rail opamp designed for low voltages, opamps need 2-3 volts higher rails then the desired output voltage.
Inputs should not exceed their common mode range, nor be greater then the rails, see data sheet
Inverting amplifiers cannot have gains less then one
Steve
Last edited by mixedgas; 02-05-2010 at 18:56.
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