AnsweredAssumed Answered

AD8232 not outputting any signal

Question asked by jpdieffe on Jan 7, 2015
Latest reply on Feb 26, 2015 by maverik0106


Recently I purchased the AD8232 evaluation board and it has been working perfectly.

After seeing that this worked, I purchased some AD8232 IC's from digikey and populated my own PCB that had the exact same schematic as the evaluation board.


I unfortunately see nothing coming from the output of the AD8232.  Just a zero volt signal.


I've tried both 2 lead and 3 lead designs.

I've ordered more AD8232 components in case I received a bad batch of components.

I've tried both reflow and hand soldering.


Even with all these variations, I could not get anything to work.  A couple of times a board would work for a few minutes and then return to outputting a zero volt signal.


At this point I assumed that maybe the component was just extremely sensitive to stray impedance, so I decided to copy the exact layout.

I ordered a different eval board from Spark Fun (SparkFun Single Lead Heart Rate Monitor - AD8232 - SEN-12650 - SparkFun Electronics), tested it to see that it worked, and then copied the layout and made my own PCB using Advanced Circuits (

Unfortunately, this still didn't work.

After reading around the forum it doesn't seem like anyone else is having this problem...

Does anyone have an idea why I can't get this IC to work on my own boards?

Thank you!