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operational amplifier - What is the purpose of a resistor in the feedback path of a unity gain buffer? - Electrical Engineering Stack Exchange
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Operational amplifier voltage follower aka unity gain buffer circuit using LM358 op amp IC - YouTube
![CA3130 Op Amp unity gain amplifier zener diode voltage supply circuit diagram by electronzap electronzapdotcom | Circuito electrónico, Circuito, Electrónica CA3130 Op Amp unity gain amplifier zener diode voltage supply circuit diagram by electronzap electronzapdotcom | Circuito electrónico, Circuito, Electrónica](https://i.pinimg.com/originals/de/e1/9d/dee19dbf775061c8591f522f557b6634.png)
CA3130 Op Amp unity gain amplifier zener diode voltage supply circuit diagram by electronzap electronzapdotcom | Circuito electrónico, Circuito, Electrónica
![Figure 2 from 200 μW CMOS class AB unity-gain buffers with accurate quiescent current control | Semantic Scholar Figure 2 from 200 μW CMOS class AB unity-gain buffers with accurate quiescent current control | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/10a89c301fc1e1ed65ccb1390690c37da9e27454/3-Figure2-1.png)