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    1. Explain why an instrumentation amplifier has more than one stage?

    2. How would you increase the output current of an op-amp?

    3. Describe two ways to fix the output voltage offset of op-amps?

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    Solution Preview

    1. The instrumentation amplifier has more than one stage because it is used for accurate measurements. It uses buffer amplifiers at the first stage to boost the input signal and prevent signal loss on the next stage due to loading. Then at the second stage it uses a difference amplifier to ...

    Solution Summary

    This posting contains answers to the given operational amplifier questions.