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