Elektor Team
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Parallel Opamps

Based on a Labs project | October 2011 | Find it here
Some applications notes are real evergreens. This one originally dates from 1979(!) but has lost nothing of its relevance and is always very interesting when you’re looking for something like this.Opamps can only deliver a limited current; typically only about 10 mA max. When more current is required, several opamps can be connected in parallel. But this usually doesn’t work very well because opamps are never 100% equal. In practice they will fight each other and only get warm, which was not the intention of course.
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