Lester wrote:
For a regulated power supply, make one using a 723. The 723 has far lower noise out than the monolithic regulators.
If you are willing to design your own regulator using a 723, you may as well use a few more parts to get a much better result. Neither the internal reference nor the internal error amp in a 723 is anywhere near state of the art today with respect to noise, tempco, or speed. Using readily available buried zener references and low-noise, high-speed op amps (or even a few discrete transistors), you can do several orders of magnitude better than a 723 in all respects. The web is overflowing with designs (though not all of the circuits you find perform as advertised, so evaluate them with a critical eye and use your own sound judgment).
But wasn't the original question what is available off-the-shelf? Best regards, Charles _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
