In this video, for a Differential Amplifier (using BJT), the expressions of differential gain, the common-mode gain, CMRR, and the input impedance is found using a small-signal analysis. By watching this video, you will learn the following topics: 0:00 Introduction 0:57 Differential Gain of the Differential Amplifier using small-signal analysis 12:45 Input Impedance of Differential Amplifier 14:34 Common mode Gain and the expression of CMRR for differential Amplifier BJT- Differential Amplifier In this video, through a small-signal analysis, the differential gain, the common-mode gain, CMRR, and input impedance of the differential amplifier are found. The link for the other useful videos: 1) BJT Small Signal Analysis: Common Emitter Amplifier without Bypass Capacitor https://www.youtube.com/watch?v=kCNwU-OGK-U 2) BJT- Differential Amplifier Explained https://www.youtube.com/watch?v=yXJADXuWtlI 3) BJT- Differential Amplifier (Large Signal Analysis) https://www.youtube.com/watch?v=nR1qdbq1Zgk This video will be helpful to all the students of science and engineering in understanding the small-signal analysis of the Differential Amplifier. Support the channel through membership program: null #ALLABOUTELECTRONICS #DifferentialAmplifier #BJT -------------------------------------------------------------------------------------------------- Follow me on Youtube: null Follow me on Facebook: https://www.facebook.com/ALLABOUTELECRONICS/ Follow me on Instagram: https://www.instagram.com/all_about.electronics/ -------------------------------------------------------------------------------------------------- Music Credit: http://www.bensound.com/