ADS8166: ALERT pin not clear automatically

sachin patel

Part Number: ADS8166

I am currently using the ADS8166 ALERT feature. where I am able to trigger an ALERT pin using HI_THRESHOLD, but that pin not automatically pull down when my voltage is below HI_THRESHOLD.

over 1 year ago

0 sachin patel over 1 year ago

Prodigy 20 points

Is anyone have any idea?

+1 Keith Nicholas over 1 year ago in reply to sachin patel

TI__Mastermind 40190 points

Hello Sachin,

The ALERT pin is a latching pin; if any configured channel, per the ALERT_CFG register, exceeds the threshold, then this pin will go high and stay high until reset.

In order to reset (clear) the ALERT hardware pin, you can write 0xFFh to the ALERT_LO_STATUS and ALERT_HI_STATUS registers.

Regards,
Keith Nicholas
Precision ADC Applications

0 sachin patel over 1 year ago in reply to Keith Nicholas

Prodigy 20 points

Thanks, Keith Nicholas.

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ADS8166: ALERT pin not clear automatically