HI,
I am using AD628 for my current sensing application .Current range 0 to 2.5amps through the R76 (0.01 current sense resistor ) . the gain for first stage is 0.1 and second stage is sate as 3.12 , supply voltage for the AD628 is +5V and GND (single supply). while measuring the 1st stage output at C512 (by varying the current from 0amps to 2 amps) , I am always getting 0.715V and second stage 2.174V . whereas the expected voltage level should be as below .
| Current(amps) | Expected output @ 1st stage of AD628 . | Expected output @ 2st stage of AD628. |
| 0.5 | 0.05V | 0.156V |
| 1 | 0.1V | 0.312V |
| 1.5 | 0.15V | 0.468V |
| 2 | 0.2V | 0.624V |
| 2.5 | 0.25V | 0.78V |
Kindly address the same issue .
Regards ,
Wasim
