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Precision Amplifier Drives 500ohm Load to ?10V

2015-01-02 06:22  
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View Full Size Image View Original DatasheetPrecision Amplifier Drives 500ohm Load to ±10V

Two amplifiers can be combined to double the output current of just one amplifier. In this circuit the gain is arranged in such a way that ensures that each amplifier contributes half of the load current. One tenth of the output voltage is impressed across a resistor that is one fifth of the load resistor making its current exactly 1/2 the total load current. If the load is disconnected the bottom amplifier will sink the current.

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