(Solved): (c) ) It is understood that the voltage comparators can utilise either a no-feedback (open-loop) op ...

(c) ) It is understood that the voltage comparators can utilise either a no-feedback (open-loop) operation or a positive feedback operation. The op-amp LF411 is a high-speed comparator and for a circuit utilising it (shown in Fig. A2c), assume that an input (Vin) with 10 V peak amplitude at 1 Hz frequency is being applied. Please describe and draw the comparator output (Vo) by clearly labelling axes, threshold voltages and the saturation voltages in your sketch. Also show any supporting calculations including the calculation of Vrer at the non-inverting terminal. 15 V LF411 Vour 20 ?? 15 V Vin 10 ?? 5 V Alla Fig. A2c: Open-loop comparator circuit (5 marks)