# Amplying hallsensor Output

I am planning to use Hall sensor.I am trying to measure The high DC current up to 20A .Is any can share link to Build ampilfied network to amplify hall out put and feed back to Arduino.

And another problem i am facing here is Determining out put Whether it is pulse output or analog.

• Well, I didn't pull it out of ... the equation tells you that, $V_{OE}$ is "sort of" defined as 2.5V nominal (give or take 15mV) by the inappropriate section "ACCURACY DYNAMIC PERFORMANCE", then you use the equation inappropriately called "Rated output voltage VO (V)". It's not a great datasheet. The sampling resistor and secondary coil turns appear to be copied from some other product (a current transformer) and do not apply to this device (since it's Hall type and works down to DC). Or maybe it's the feedback coil for the Hall, but it's not a secondary then. – Spehro Pefhany May 19 '14 at 11:34