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ApplyingaNewPrecisionOpAmp
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Abstract： A new bipolar op amp design has advanced the state of the art by reducing offset voltage and bias current errors. Its characteristics are described here， indicating an ultimate input resolution of 10 mV and 1 pA under laboratory conditions. Practical circuits for making voltmeters， ammeters， differential instrumentation amplifiers and a variety of other designs that can benefit from the improved performance are covered in detail. Methods of coupling the new device to existing fast amplifiers to take advantage of the best characteristics of both， even in follower applications， are explored.
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