We've measured Milliren 220 series to be about 5e-12 at 10 seconds, but that's not fair since it turns out that part is "call for quote", even if we only bought

We've measured Milliren 220 series to be about 5e-12 at 10 seconds, but that's not fair since it turns out that part is "call for quote", even if we only bought it in small qty. Conner-Winfield OH320 advertises an Allan Deviation of 2.7e-12 at one second. Its a very similar part, without all the hirel and space qualifications. 98 USD/ea at Digi-Key. I agree wholeheartedly on the low-baseline setup case. An offline carrier phase position-time solution could stretch you out to much wider baselines, though.