The circuit 22, wherein {HEAD ~ each} of the first, second, and third switch means includes {TAIL ~ a field effect transistor} 
includes
The circuit 22 , wherein { HEAD ~ each } of the first , second , and third switch means includes { TAIL ~ a field effect transistor }
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL