Bandgap voltage reference using bipolar parasitic transistors and {HEAD ~ MOSFETs} in {TAIL ~ the current source} 
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Bandgap voltage reference using bipolar parasitic transistors and { HEAD ~ MOSFETs } in { TAIL ~ the current source }
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL