ABSTRACT

This chapter covers the common noise that appears in electronic devices. The electronic devices include both passive and active, i.e., resistor, zener diode, transistor, op-amp, and vacuum tube. Noise can be generated either internally by the electronic devices or externally by electromagnetic interference. The nature of intrinsic noise generated by electronic devices is discussed. The intrinsic noise includes thermal noise, shot noise, flicker noise or 1/f noise, burst noise, and avalanche noise. Methods of determining the noise generated from an amplifier are discussed and examples are given. Basics of low noise design are given so as to minimize noise right from the beginning. Some representative low noise amplifying devices are given in easy look up tables. They include BJTs, JFETs, and op-amps.