ElectronicsThe NTE857SM is an operational amplifier (op-amp) manufactured by NTE Electronics. It is a single channel, 8-pin SO8 package with a bandwidth of 4MHz and supply voltage range of -15V to +15V. This op-amp is used to amplify the electrical signal of an electronic circuit. It can be used in a variety of applications, such as amplifier circuits, signal conditioning, filtering, and more.