LM358 Dual Operational Amplifier

Two general purpose op-amps in one package, and the single most useful analogue chip for microcontroller work. Its key advantage is that it runs from a single supply and its inputs work right down to the negative rail, so it operates from a plain 5 volt line with no negative supply - unlike older op-amps that needed plus and minus rails. Used for amplifying sensor signals, buffering, filtering and building comparators. Runs from a single supply, no negative rail needed; Input range includes the negative rail; Two independent amplifiers in one package; Extremely well documented and inexpensive