1. Considering simplicity and standard 10% tolerance resistors as major constraints, design OP AMP circuits that produce the following voltage gains ±10%: - 150, + 60, + 1, -1, -0:8, + 0:7.
2. Two OP AMP circuits are shown in Figure P4-28. Both claim to produce a gain of either ±100.
(a) Show that the claim is true.
(b) A practical source with a series resistor of 1 kΩ is connected to the input of each circuit. Does the original claim still hold? If it does not, explain why.
