SCB68 how to calculate the correct resistor

[K C]

OK, good luck with your project and just ask your questions here there is 'always' someone with an answer.

[Sara2]

HI!

I am again here 🙂

I was calculating the watt of my 100Kohm resistor. I thought that if my differential analog signal is

between 0V and 5V and my sensor requires 100mA than ... the required resistor Watt is

W=5Vx100mA=0,5Watt

Is it ok?

🙂

Sarah

[K C]

So soon back again 

The Driver/Sensor combination is power by a separate power line (5VDC). The power consumption is 101mA of both boards.

The current through the 100k bias resistors will be less then 1µA. So just a small resistor will do.

Or are we talking about different things 

Btw. where are you located. I always like to know where people comming from.

Greetings from The Netherlands

[Sara2]

oh...I am a little bit inexperienced 😉

When I went to electrical shop to buy resistors they said me: what power do you want?

oh...

thank you very much...again!

I come from Italy... I visited two times Netherlands... very nice!!!

Sarah