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