Differential amplifier for asymmetric / symmetric conversion

摘要

The amplifier has MOSFET transistors (T1, T2) connected to common emitters. An impedance unit (Zg) across terminals of current generator is connected between a common point of feedback impedances and reference potential. Signal input unit (v1) is connected to a base (b1) of one of the transistors for forming asymmetric input with the base. Feedback correction impedance unit (Zcorr) is connected between a collector (C) of another transistor and the base for symmetrizing collector currents of the transistors, where value of the impedance is equal to twice of impedance across the terminals.