作者: Ronald W. Russell
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摘要: An offset adjustment circuit for a differential amplifier includes current source connected in series with resistor establishing biasing voltage pair of field effect transistors (FET) having variable resistors their circuits. These FET's are to introduce currents respective connections between an input stage and second the amplifier. The difference supplied by divided transconductance corresponds which remains fixed changes temperature. introduced FET's, as determined adjusted values circuits, may be opposition either reduce it partially or completely, additive amplifier, desired.