- Mon Mar 10, 2014 5:31 am
#169219
I fabricated my first PCB board(one sided) through OSH park and used trace width of 20 mil for power traces and 10 mil for all others. When i check the circuit with dc input voltage (ex:50 mv- 600 mv) everything is perfect.
When i connect it to a real input (also a dc potential in the same range, ~30 uA current), the circuit receive signal much lower than original.Other parts of the circuit are working fine, just i am receiving very low signal as soon as it is connected to circuit input.
Can it be due to the trace width. Or if you have any other idea or suggestion please help.
NB: I wanted to upload image of layout and circuit. but can not find attachment option.
When i connect it to a real input (also a dc potential in the same range, ~30 uA current), the circuit receive signal much lower than original.Other parts of the circuit are working fine, just i am receiving very low signal as soon as it is connected to circuit input.
Can it be due to the trace width. Or if you have any other idea or suggestion please help.
NB: I wanted to upload image of layout and circuit. but can not find attachment option.