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