• Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

TI INA219 current/power monitor seperate power supply

Not open for further replies.


New Member
I am trying to use the TI INA219 current/power monitor and the datasheet (p. 14) says that it "typically" needs a separate power supply. Currently, I am sharing the same supply voltage that I am measuring and there does not seem to be a problem from my limited testing.

What are the problems that I should be seeing that are associated with using a shared supply voltage?

If I really need a separate supply, does that mean I have to use a second transformer?
Not open for further replies.

Latest threads

EE World Online Articles