Differential amplifier basic operation and negative feedback
Today we take a look at the differential amplifier or long tail pair as it is known in this version. It is commonly used and not well understood in its basic operation.

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Adding a constant current source to a differential amplifier to improve common mode rejection

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EEVblog 1752 - Texas Instruments SCREWED UP the NE5532!

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Long-Tailed Pair - Comparator and Differential Amplifier - Simply Put

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Negative feedback in audio

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Differential Amplifiers Made Easy

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Differential Amplifier Experiments

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#193: Back to Basics: the differential amplifier, aka long-tailed pair, diff-pair

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Vintage HP Function Generators: HP 3300A, HP 3310A and HP 3312A

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Differential transistor matching circuit and the JAT501 amplifier project

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Wilson Current Mirror and Current Source Design

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Differential Amplifiers with Transistors (23-Transistors)

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My Golden Retriever Heals a Terrified Rescue Kitten in Just 3 Meetings!

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Dynamic Microphone Preamplifier Part #1

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Transistor-Based Voltage Controlled Amplifier (VCA)

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The rise and fall of the R4: Why this legend had to die

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Differential Amplifier, the Basics

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127N. (Pt. 1) Differential Amplifiers: MOS, BJT, and ATD

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All About Op-Amps

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Simple class A amp improved with a constant current source

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