High side, High CCMR AC and DC current monitor

Terry Zarnowski

Other Parts Discussed in Thread: AMC1200, AMC1100, INA149

Hello:

I need to design a high side current sensing solution capable of handling 132VAC as well as 24 to 48 VDC in the range of 0 to 500mA.

What is the best product solution for this?

over 10 years ago

0 Terry Zarnowski over 10 years ago

Prodigy 105 points

The output of the circuit will go to a microcontroller A/D.

0 Jason Bridgmon over 10 years ago in reply to Terry Zarnowski

TI__Genius 14825 points

Terry,
We have current shunt monitors that accept high-side common modes of 80V, but beyond that you'll need to look into our AMC1100 and AMC1200 devices. These are 4.25kV Isolation Amplifiers for current shunt measurement.

I'm moving this thread over to the amplifiers forum for further comments from the AMC group representatives.

Thanks for using TI parts!

0 Jose Duenas over 10 years ago in reply to Jason Bridgmon

TI__Genius 9975 points

Hello Terry,

Another part that you may want to consider is the INA149.

Best regards,

Jose

0 Terry Zarnowski over 10 years ago in reply to Jose Duenas

Prodigy 105 points

Jose, thank you! That part is perfect! I am going to get the eval board to try it out.

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High side, High CCMR AC and DC current monitor