National Semiconductor Releases No-Noise Audio Operational Amplifiers

摘要

United states - National Semiconductor Corp. has recently introduced 44V and 34V high-fidelity audio operational amplifiers that practically eliminate distortion, with total harmonic distortion plus noise of 0.00003 percent.rnThe 44V audio operational amplifier family includes two package versions of the LME49860 dual operational amplifier while the 34V family consists of the LME49710 single operational amplifier, LME49720 dual operational amplifier and the LME49740 quadruple operation amplifier.rnThe LME49860 is a unity-gain amplifier, which can operate over a wide supply range of ± 2.5 to 22V and provides output current capability of 26mA. It offers a full audio dynamic range maximized with an output stage that can swing to within 1V of either power supply voltage when driving 2kΩ loads or to within 1.5V when driving 600Ω loads. It is packaged in eight-lead narrow body SOIC and DIP.