I'm currently using a Maxim DS3231 RTC which I think is pretty accurate. What is the most accurate RTC I can buy, any brand?
I'm not sure, as I haven't shopped for a real-time clock. I would think that a Trimble Thunderbolt GPS receiver would be quite good, although I'm not qualified to answer this.
ADI doesn't do much of anything that involves RTCs, you ought to be able to find better guidance elsewhere.
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