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Q&A Sensitivity of Current measurement with ADALM1000

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Sensitivity of Current measurement with ADALM1000

ovo on Aug 8, 2017

Hi

The ADALM1000 documentation states that the device is able to measure a maximum of 200mA of current.

What is the minimum detectable current the ADALM1000 can measure?

Thanks in advance!

0 dmercer

on Aug 8, 2017 7:31 PM
Hi:

The same 16 bit ADC is used for the current measurements. Given the +/- 200 mA range ( 400 mA total ) the ADC LSB would be 400mA/65536 or 6 uA. However there is much more noise in the current sensor amplifier than this and you will not see down to the ADC LSB level. With a little averaging what I generally see is the value flickering about 100uA. Or about 12 bit resolution.

Doug
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0 ovo on Aug 8, 2017 8:03 PM

Thank You.
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0 EZAdministrator

on Aug 24, 2018 12:50 PM
This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

Thank you,
EZ Admin
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