{TAIL ~ An apparatus} for controlling {HEAD ~ supply voltage} for a successive approximation register analog to digital converter , comprising: 
{ TAIL ~ An apparatus } for controlling { HEAD ~ supply voltage } for a successive approximation register analog to digital converter , comprising :
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH