- #1
likephysics
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I was looking at input stage of 741 internal ckt - http://en.wikipedia.org/wiki/File:OpAmpTransistorLevel_Colored_Labeled.svg
how exactly are the 2 transistors Q1,Q2 biased?
I looked at bjt differential input stage wiki here - http://en.wikipedia.org/wiki/Differential_amplifier#Long-tailed_pair
Fig 2 shows the biasing using collector and emitter resistors. Is there no need to put the base at >0.7v?
how exactly are the 2 transistors Q1,Q2 biased?
I looked at bjt differential input stage wiki here - http://en.wikipedia.org/wiki/Differential_amplifier#Long-tailed_pair
Fig 2 shows the biasing using collector and emitter resistors. Is there no need to put the base at >0.7v?