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Last Updated on: Thursday, April 07, 2016 02:04 PM

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High Impedance Amplifier Circuits

CMOS Logic Inverter Amplifier Characteristics  -  This chart shows some of the measured characteristics of three different unbuffered CMOS logic gates, used as voltage Amplifiers . . . [Circuit by David A. Johnson P.E.,  02/11/02]


JFET High Impedance Buffers  -  I have used these circuits many times.  They are great when you need a low gain AC signal amplifier with a very high input impedance.  It is good to beyond 50MHz . . . [Circuit by David Johnson P.E.,  07/11/06]

More Amplifier Circuits
High Impedance Amp Circuits

Dave's Amplifier Circuits:      Audio       Buffers         High Frequency-HighSpeed-Wide Band       
High Impedance Circuits      Low Noise      RF (Radio Frequency)       
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