On Tue, 23 Apr 2002, Riad S. Wahby wrote: >This may take more voltage than you want to use in your process, but you >can engineer the base-emitter junction if you've got a friend in process >engineering.
Aren't there dedicated avalanche diodes available with low breakdown voltages, precisely for this reason? I think they're used in applications where zeners could be, except for higher breakdown current. >One other potential problem is long-term reliability, but that's a >subject for another email. Shouldn't be a problem, if you limit the breakdown current. If you're after entropy, you'd likely want to use a constant current source anyway. Sampo Syreeni, aka decoy - mailto:[EMAIL PROTECTED], tel:+358-50-5756111 student/math+cs/helsinki university, http://www.iki.fi/~decoy/front openpgp: 050985C2/025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2
