77. Differential Amplifier : Analysis and Numerical Examples
The discussion focuses on the analysis of differential amplifiers, covering both small and large signal analysis. Key concepts include the operational modes, gain calculations, and practical implementations using BJT and MOSFET. Additionally, the chapter introduces various stimulus operating conditions and explains the input-output relationships in detail.
Enroll to start learning
You've not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Sections
Navigate through the learning materials and practice exercises.
What we have learnt
- Differential amplifiers can operate in differential mode and common mode, each providing different gain characteristics.
- Small signal equivalent circuits are essential for analyzing the behavior of differential amplifiers under varying input conditions.
- The concepts of input common mode range and output signal swing are critical for understanding differential amplifier limitations.
Key Concepts
- -- Differential Mode
- A mode of operation in which two input signals are applied differentially, allowing the amplifier to amplify the difference between them.
- -- Common Mode
- A mode of operation where identical signals are applied to both inputs of the amplifier, which should ideally not produce any output.
- -- Input Common Mode Range
- The range of input voltages within which the differential amplifier can function correctly without distortion.
- -- Output Signal Swing
- The maximum peak-to-peak output voltage that the differential amplifier can provide without clipping.
- -- Small Signal Equivalent Circuit
- A simplified model of the differential amplifier that neglects DC components and focuses on the AC response to small perturbations.
Additional Learning Materials
Supplementary resources to enhance your learning experience.