Silicon die analysis: inside an op amp with interesting “butterfly” transistors

Re:Silicon die analysis: inside an op amp with interesting “... by hatsunearu on Sunday June 24, 2018 @02:01AM (#17385179)

What's wrong with the 741?

The 071 is also "jellybean" enough; both are still currently used in modern designs because how dirt cheap they are.

But they are "high voltage", non rail-to-rail anything, so people tend to use more modern options for new designs.

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Re:Silicon die analysis: inside an op amp with interesting “... by setquk on Sunday June 24, 2018 @07:19AM (#17386063)

741 problems: terrible bias current, offset, input range, output range, power consumption, voltage requirements, GBW, noise.

They’re just horrid. Fine for noddy stuff like power supplies and PID loops etc though.

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Re:Silicon die analysis: inside an op amp with interesting “... by coupdejarnac on Sunday June 24, 2018 @07:27PM (#17388937)

I don't have any particular problem with it. I majored in EE about 15 years ago, and haven't really looked at op amps since studying the 741. Just curious what's popular these days.

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