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