Suggest detailed, comprehensive answers for the following questions in an essay format.

1. Describe the construction and key characteristics of a practical operational amplifier. How do these characteristics (e.g., input impedance, output impedance, CMRR, Slew Rate) differ from those of an ideal op-amp, and why are these differences important in real-world applications?
2. Compare and contrast the operation of op-amp based differentiator and integrator circuits. Discuss their circuit diagrams, derive their output voltage equations, and explain the significance of the RC time constant in each circuit.
3. Explain the function and operation of both clippers and clampers as wave shaping circuits. Differentiate between positive and negative versions of each circuit type and describe how the output waveform is altered relative to the input.
4. Trace the complete process of an analog-to-digital conversion using a Successive Approximation ADC. Describe the role of each major component (SAR, DAC, comparator, clock, control logic) in determining the final digital output.
5. Explain the principle of operation for both the RC Phase Shift Oscillator and the Wien Bridge Oscillator. Discuss the op-amp configuration (inverting vs. non-inverting), the source of the required phase shift, and the conditions for gain required for sustained oscillations in each type.