Hi

Can you tell me how long it takes to make Dataready high after finish sampling the data?

Regards,

IN

Hi

Can you tell me how long it takes to make Dataready high after finish sampling the data?

Regards,

IN

- 1 person found this helpful
The delay from the sample time to the data-ready is constant, but the decimation rate setting, which is associated with the AVG_CNT setting, combines multiple samples together. Without more information on the application requirement, I would tend to assume that the "mean sample time" would be the appropriate reference point. In this case, see the variable "N," in Table 23 (page 12, ADIS16210 datasheet, rev A) and use the following formula to compute the time between the "mean sample time" and the data ready pulse:

Delay = 0.5ms + (1/512) x (N-1)/2

I hope that helps.

Best,

NevadaMark - 1 person found this helpful
In this case, the output data rate is equal to the internal sample rate, divided by N, which represents the decimation rate. The ADIS1622x, ADIS16334, ADIS1644x and ADIS1648x use similar approaches to output data rate control, while the ADIS1620x, ADIS1636x and ADIS1640x do not. Is that what you meant?

I hope that helps.

Best,

NevadaMark

I asked another engineer to review my process for calculating this number and found that my approach was "more conservative than necessary." This delay will be closer to 0.5ms.

I hope that helps.

Best,

NevadaMark