{TAIL ~ The apparatus} 25, wherein {HEAD ~ the analog to digital converter} comprises a sigma delta modulator 
{ TAIL ~ The apparatus } 25 , wherein { HEAD ~ the analog to digital converter } comprises a sigma delta modulator
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH