The input voltages are inthe range of a few micro volts


You are designing the input stage for an amplifier used in abiomedical application. A high-impedance voltage sensor isdetecting the voltages generated by a human brain for producing an electro encephalogram. The input voltages are inthe range of a few micro volts. Contrast the utility of a BJTversus a MOS transistor for this input stage. How would yourchoice be different if the application were for a low impedancehall effect sensor used in a wheel rotation sensor for a car?

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Electrical Engineering: The input voltages are inthe range of a few micro volts
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