Design of a single non-inverting op-amp amplifier with a voltage gain of +25 dB. i. Draw the circuit schematic and calculate possible resistor values. ii. If an input signal with a frequency of 100 kHz, a peak to peak voltage of 200 mV and a DC offset of 1 V should be applied to this amplifier, calculate the minimum gain-bandwidth product, and the minimum slew rate of the op-amp (assume the supply voltage to be sufficiently large). (10 marks] (b) Two identical capacitors Cwb and two identical resistors Rwe are used to transform a non-inverting amplifier into a Wien bridge oscillator with an oscillation frequency of 15 kHz. Draw the circuit schematic and calculate vales for Cws and RWB. [5 marks] (c) Sketch the qualitative output signal vs. time of the circuit from (b) and make a statement about the behaviour (assume the oscillator output amplitude at t=0 s is 1 V) if: I i. The non-inverting amplifier has a gain of 1.5. ii. The non-inverting amplifier has a gain of 3. iii. The non-inverting amplifier has a gain of 4.5. [5 marks]