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AD7190: chop enable configuration

Question asked by anitad87 on Dec 9, 2015
Latest reply on Jan 15, 2016 by anitad87

Hello

 

I am working with ad7190 with the following configuration:

-continous read

-sinc 4

- fs 96 --> data rate 200 Hz

-chop disable

- single, rej60, burn, refdet, buf: all disabled
With this configuration I can correctly read all values with 200 Hz frequency.

 

When I decide to enable the chop. So I have the following configuration

-continous read

-sinc 4

- fs 6 --> data rate 200 Hz

-chop enable

- single, rej60, burn, refdet, buf: all disabled
I can still read with a rate of 200 Hz, but every 1537 sample (7.685sec ) the ADC stops to measure for the next 30 samples.

 

Do you know the reason? Thanks for your help

 

Anita

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