About low leak current detection solution

Satoshi

Guru 19485 points

Other Parts Discussed in Thread: DDC11XEVM-PDK, DDC232

Customer is looking for 10nA leak current detection solution.

(ex. When leak current more than10nA, detect output "High")

I think that DDC11xEVM-PDK is good solution, can DDCxEVM match this solution?

Or, Is there have a good solutions?

※Customer is not want to use Shunt resister because high power loss.

Best regards,

Satoshi

over 7 years ago

0 Joseph Wu over 7 years ago

TI__Guru* 92655 points

Satoshi-san,

The DDC products are now supported through the Medical Forum and I've moved your post there so that you can get an answer. I'm sure one of the apps engineers will be able to help.

Joseph Wu

0 Satoshi over 7 years ago in reply to Joseph Wu

Guru 19485 points

Joseph-san

Thank you for move my post.
I looking forward to your Update.

Best regards,
Satoshi

0 Eduardo Bartolome over 7 years ago in reply to Satoshi

TI__Expert 4590 points

Hi Satoshi-san,

Without seeing the application it is hard to say but sure, the range (10nA) is about right. Notice that the input of the DDC is basically a virtual GND, so, if the leakage path can be connected on some way to that input, then sure, it can be measured... The other limitation is that the current has to be INTO the device (see for instance page 8 of the DDC232 datasheet).

Regards,
Edu

Data converters

Data converters forum

About low leak current detection solution