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Keywords: Op-Amp Differential Amplifier.svg A circuit diagram of a differential amplifier made using an operational amplifier <math> V_\mathrm out V_2 \left \left R_\mathrm f + R_1 \right R_\mathrm g \over \left R_\mathrm g + R_2 \right R_1 \right - V_1 \left R_\mathrm f \over R_1 \right </math> own 2009-01-26 Inductiveload Own work all rights released Public domain Operational amplifier circuits |