Transcription of Analog & Digital Electronics
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Analog & Digital ElectronicsCourse No: PH-218 Lec-13: Multistage AmplifiersCourse Instructors: Dr. A. P. VAJPEYID epartment of Physics, Indian Institute of Technology Guwahati, India1 CharacteristicCommon BaseCommon EmitterCommon CollectorInput impedanceLowMediumHighOutput impedanceVery HighHighLowPhase Angle0o180o0oVoltage GainHighMediumLowCurrent GainLowMediumHighPower GainLowVery HighMediumMultistage Amplifier:2 Power GainLowVery HighMedium Common emitter amplifier is most popular BJT amplifier due to high power gain. Ideal amplifier should have high input impedance , low output impedance , high voltage and current gain.
Characteristic Common Base Common Emitter Common Collector Input impedance Low Medium High Output impedance Very High High Low Phase Angle 0o 180 o 0o Voltage Gain ...
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