The capacitor voltage generated by the filter capacitor sets {HEAD ~ the bias point} of the second field effect transistor such that the second field effect {TAIL ~ transistor comprises characteristics} of an integrated precision resistor 
The capacitor voltage generated by the filter capacitor sets { HEAD ~ the bias point } of the second field effect transistor such that the second field effect { TAIL ~ transistor comprises characteristics } of an integrated precision resistor
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH