Post Go back to editing

What op amps are used to amplify small DC signals?

Amplify the DC voltage signal of several millivolts to the voltage range that the microcontroller can recognize power supply, so I don't want to use dual power supply), or op amp powered by single power supply, the accuracy and zero drift are very low (previously, OP07 was used, because dual power supply was always bad, so it could not be used well),