![]() phones, queueing theory and a software project.The principle is based on the Lampert circuit, where two uncorrelated noise sources are fed into a single comparator, to avoid biasing problems due to a shifting operating point in the Zener noise sources. ![]() Those 8 bits can be sampled as a single byte by a microcontroller and then sent over UART to a PC. It is comprised of 16 individual 12V-Zener-Diode noise generators, which feed into 8 comparators to generate 8 output bits at once. Out of curiosity, and to use up some of my big bunch of quad op amps, I decided to build a hardware random number generator.
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