A charge pump current setting is applied in digital form to a set of {HEAD ~ two position switches} coupled to {TAIL ~ binary weighted current sources} 
coupled to
A charge pump current setting is applied in digital form to a set of { HEAD ~ two position switches } coupled to { TAIL ~ binary weighted current sources }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL