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Author Topic: uCurrent  (Read 3553 times)

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Offline FenichelTopic starter

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uCurrent
« on: January 28, 2010, 09:38:58 pm »
  I am planning to build a uCurrent device for myself.  Is there a reason that the design posted on the blog used a voltage divider and a special-purpose opamp instead of an integrated virtual ground like the TLE2426?
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Offline EEVblog

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Re: uCurrent
« Reply #1 on: January 29, 2010, 02:17:10 am »
No reason apart from cost.
The LMV321 opamp is 28 cents, the TLE2426 is 70 cents or so.
The LMV321 is nothing special, it's just a low power general purpose opamp that was cheap and available.

Dave.
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Offline dmage

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Re: uCurrent
« Reply #2 on: June 17, 2012, 02:54:34 pm »
Hi.
This device is very nice for measuring current in one selected ranges, but
there is a situation when you need to measure accurate current in 0-100mA and 0-10uA at the same time.
Can i use two devices in series to solve my problem or i shoul use another approach ?
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