 a second MOSFET having {HEAD ~ a gate} coupled to {TAIL ~ said first input terminal} and a source drain path provided between said output terminal and a first potential and 
coupled to
a second MOSFET having { HEAD ~ a gate } coupled to { TAIL ~ said first input terminal } and a source drain path provided between said output terminal and a first potential and
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH