{TAIL ~ Currents} from {HEAD ~ the sources} selected by the switches are combined, and the total current is mirrored to the charge pump 
{ TAIL ~ Currents } from { HEAD ~ the sources } selected by the switches are combined , and the total current is mirrored to the charge pump
TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH