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Hi,
My name is Idan and I'm electronic engineer.
In my application, I need to measure low voltage from serial shunt resistor (0.2Ω) that connected between DC-DC converted from one side (300VDC/ 4A) and a full bridge inverter and parallel big capacitor in the other side (High-side measurement).
For that purpose, I thought to use the INA110 as the first stage and then ISO120SG Isolated amplifier as a second stage (both with ±15V) but in order to do so I need you to clearly the following questions:
The question is if I'm using a clamping diode to ±15V (as in FIGURE 14), is the circuit protected (Common mode, differential voltage and so on)? Maybe I need to connect the clamping diode to ~1V (in order make sure that A3 input will not "See" more the ±10V with fix gain of 10).
My second option is to use the AMC1100 amp…
Thanks a lot,
Idan
Hi Idan,
Thanks for your question. We will be reviewing it next business day.
Regards
HI Ian,
I was reviewing your question today and realized you have specific questions about the INA110. I will move this question to the Precision Amplifier group so they can assist you with the specific questions you have related to datasheet circuits.
Regards