{TAIL ~ The high frequency signal path} has a differential amplifier powered for providing {HEAD ~ a high frequency, low accuracy buffering operation} 
{ TAIL ~ The high frequency signal path } has a differential amplifier powered for providing { HEAD ~ a high frequency , low accuracy buffering operation }
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD