The input voltage Vi ranges from -5V to +5V.
The figure shows a sample and hold circuit using a MOSFET as a switch. The threshold voltage of the MOSFET is +2V. It has zero leakage current in the off state. Assume that the capacitor is ideal.
Which of the following is / are true?
1
The value of Vsub during sampling is 12 V
2
The value of Vsub during sampling is -12 V
3
The value of Vg during sampling is greater than or equal to +7 V
4
The value of Vg during sampling is less than or equal to 3V