Hi,

In the FAQ, the ADIS16485 is shown to have a Allan variance value of 18 taken at 1 second integration time. Just wondering whether the units for the value of 18 given as deg/hr should rather be deg/sec?

Regards,

Imms

Hi,

In the FAQ, the ADIS16485 is shown to have a Allan variance value of 18 taken at 1 second integration time. Just wondering whether the units for the value of 18 given as deg/hr should rather be deg/sec?

Regards,

Imms

Hello Imms,

I am assuming that you are referring to the following FAQ: http://ez.analog.com/docs/DOC-2163

If you review IEEE-STD-952-1997, Appendix C, it defines ARW as the slope of the AVAR line, at an integration time of 1 second. The slope of this line has the units of deg/sqrt(sec), not deg/sec. I will give the FAQ post some more thought. Perhaps there is another way to describe this.

I hope that helps.

Best regards,

NevadaMark

Hello Imms,

I am assuming that you are referring to the following FAQ: http://ez.analog.com/docs/DOC-2163

If you review IEEE-STD-952-1997, Appendix C, it defines ARW as the slope of the AVAR line, at an integration time of 1 second. The slope of this line has the units of deg/sqrt(sec), not deg/sec. I will give the FAQ post some more thought. Perhaps there is another way to describe this.

I hope that helps.

Best regards,

NevadaMark