Op-Amp Selection Guide: Key Parameters for Analog Design
The op-amp market spans from a 30-cent LM358 to a 15-euro precision zero-drift amplifier. The difference is not just the price tag. It is input offset voltage, noise density, GBW, slew rate, supply range and whether the output swings close enough to the rail. Pick the wrong one and your signal chain loses bits, clips prematurely or oscillates.
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