Consider the feedback circuit shown in Fig. 4, assume that the value of R1 + R2 is high enough and λ = 0. a) Determine the open-loop gain by writing A1= (Vx/Vin) (Vout/Vx). A1= b and c parts in the

A non-inverting op-amp circuit has the open loop gain of 116 and the resistances R1=2400 n and R2 = 5.8 ka . Calculate (a) The actual value of voltage gain (b) Considering the finite open loop gain, the ideal value of gain (C) Error, when ideal voltage gain is compared with actual voltage gain (d) The percentage error, when ideal voltage gain is compared with actual voltage gain. (a) The actual value of voltage gain (b) The ideal value of voltage gain (c) Error, when ideal voltage gain is compared with actual voltage gain. (d) The percentage error, when ideal voltage gain is compared with actual voltage gain.

6. Show the connection of two 741 op-amp stages to provide outputs that are 15 and -30 times larger than the input. Use a feedback resistor, Rf = 150 kQ, in all stages.

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