BETANE5532Dual low-noise operational amplifier
Low-noise gain for two analog signal paths.
NE5532 contains two low-noise bipolar-input operational amplifiers. It is widely used for analog and audio stages where voltage noise, drive capability and predictable feedback behavior matter. Our example uses one channel at a gain of three and the other as a buffer. Both channels receive 0.50 V, giving ideal DC outputs of 1.50 V and 0.50 V from ±15 V rails. The reference uses TI NE5532 commercial-grade PDIP-8 and SOIC-8 parts. Input bias current and source resistance deserve attention: low voltage noise does not mean negligible input-current error.
