Each pipeline includes a sample and hold {HEAD ~ circuit} that samples the programming voltage when {TAIL ~ the pipeline} begins a write operation 
Each pipeline includes a sample and hold { HEAD ~ circuit } that samples the programming voltage when { TAIL ~ the pipeline } begins a write operation
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH