I need to determine the voltage Vx assuming the linear operations. Any ideas???
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There is an easy way to approach this problem. Call the noninverting input of the upper opamp ground. This allows all terminals on the upper input to be considered ground (assuming ideal opamps). Then, treat the 5 V supply as a -5V into the bottom opamp. The bottom opamp is a unity gain inverting amplifier, with ground at the noninverting terminal. Hence, the output of the lower opamp is +5V. This means that Vx, which is between the two opamp outputs is -5V.Any ideas???
by Jake Hertz
by Aaron Carman
by Aaron Carman