This configuration was found in an English magazine from 1965. It is valid for any junction FET. The input impedance is 5.5 M ohm higher than conventional stages.
We found this circuit in a 1975 publication. The power supply must be symmetrical, but other...
This circuit is from an old operational amplifiers manual. However, the setting applies to modern...
Texas Instruments Standard Operational Amplifiers Texas Instruments makes available through Mouser...