89. Numerical examples on current mirror and its applications (Part-D)
The chapter focuses on numerical examples related to current mirrors and amplifiers, emphasizing their calculations and operational characteristics. Key concepts include differential mode gain, common mode gain, and the application of current mirrors in various amplifier configurations. Various numerical examples demonstrate the principles and calculations associated with these electronic circuits.
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What we have learnt
- Differential mode gain can be calculated using small signal models for circuit analysis.
- Current mirrors can effectively mirror DC and signal currents, impacting amplifier performance.
- Common mode gain is crucial for understanding the stability and noise rejection of amplifiers.
Key Concepts
- -- Differential Mode Gain
- The amplification factor for the difference in input voltages in differential amplifiers.
- -- Common Mode Gain
- The amplification factor for the common signal present at both inputs of a differential amplifier.
- -- Current Mirror
- A circuit designed to replicate a current through one active device by controlling the current through another active device, effectively mirroring the current.
- -- Small Signal Model
- An approximation used to analyze the behavior of circuits around a DC operating point under AC signal conditions.
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