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