Problem 1 The op-amp circuit shown does not operate in linear mode (note that feedback is not negative). Thus, its output will most likely be saturated. The voltage waveform shown below is applied at the input. Assume that the positive and negative saturation voltages are +15 V and -15 V respectively. Assume further that at t = 0, the op-amp is at positive saturation. a. b. C. 1K www state? 2K ww If the input is increasing, at what voltage will the output change state? If the input is decreasing, at what voltage will the output change If the op-amp is ideal, plot the output voltage waveform for the given input voltage waveform.

Draw the circuit diagram of the basic noninverting amplifier configuration. Give an expression for the closed-loop voltage gain of the circuit in terms of the resistances, assuming an ideal op amp. Give expressions for the input impedance and output impedance of the circuit.

Please show all work

2) The circuit shown below uses a diode in the feedback path of the op amp. For each question, use only the ideal switch model to analyze the circuit's behavior (i.e. ignore the diode's 0.7V forward drop). Assume that R = 1k2, and the op amp is ideal. D VOUT VIN a) Suppose vIN=2V. What direction is the current i passing through R? Is the dio ON or OFF? Wha VOUT b) Suppose VIN = -2V. What direction is the current i passing through R? Is the diode ON or OFF? What is voUT? c) Explain why VOUT can never be less than 0V.