AnsweredAssumed Answered

Your conditions of AD7762

Question asked by Kaos on Sep 14, 2015
Latest reply on Oct 28, 2015 by Kaos

Dear Sir/Madam,

 

 

Our customer asked  as following questions.

He cannot find the condition on your datasheet.

 

Q-1

What is the condition of set/reset for DVALID bit status register?

Q-2

What is the condition of set/reset for OVR bit status register?

 

Customer found the following troubles.

T-1

DVALID bit of status register AD7762 is reseted and the data cannot use.

T-2

OVR bit of status register AD7762 is set.

T-3

Sometimes DVALID bit is reset when OVR bit is reset.

 

Input signal:

6Vp-p,3kHz,pulse signal/50% duty High/Low

Input at pin-25,pin-26 via internal diff AMP.

Vref=4.096V

AV_DD3=5V

AV_DD4=5V

clock freq=19.909kHz

Using internal diff AMP as page-16 on your datasheet

 

Thanks Kaos

Outcomes