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Show that the bottom MOSFET, Fig. 6.21, in a series connection of two MOSFETs cannot operate in the saturation region. Neglect the body effect. Hint: Show that M1 is always either in cutoff ( VGS1 < VTHN) or triode (VDS1 < VGS1 - VTHN).

Show that the bottom MOSFET, Fig. 6.21, in a series connection of two MOSFETs cannot operate in the saturation region. Neglect the body effect. Hint: Show that M1 is always either in cutoff ( VGS1 < VTHN) or triode (VDS1 < VGS1 - VTHN).

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Show that the bottom MOSFET, Fig. 6.21, in a series connection of two MOSFETs cannot operate in the saturation region. Neglect the body effect. Hint: Show that M1 is always either in cutoff ( VGS1 < VTHN) or triode (VDS1 < VGS1 - VTHN).

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