Title :
An amplifier with bipolar transistors and extremely high input impedance
Abstract :
A differential amplifier with unity gain, less than 10 to 50 mV offset, and a dc input resistance of 900 M/spl Omega/ was examined using complementary bipolar transistors.
Keywords :
Differential amplifiers; differential amplifiers; Bipolar transistors; Circuits; Differential amplifiers; Impedance; Leakage current; Low voltage; Resistors; Voltmeters;
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.1969.1050004
