• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 47 subscribers
  • Views 660 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

AMC1301: Isolated Current Sensing

Hirotaka Matsumoto
Guru 27585 points
Part Number: AMC1301

Hi all

Would you mind if we ask AMC1301?
In case of Isolated Voltage Sensing, we can understand that a series resistor is recommended to be used at the negative input (VINN) of the AMC1301 device with a value equal to the shunt resistor R3 (that is, R3' = R3 in Figure 52) to eliminate the effect of the bias current.

So, in case of Isolated Current Sensing, should sense resistance R3 value be equal to R3' value?
Or, the shunt resistance R3 is very small vaule, so it is not necessary to consider the bias current, right?

Kind regards

Hirotaka Matsumoto