Other Parts Discussed in Thread: LM2841,
Dear Reza :
how are you?
I have updated schematic with your suggestion except one resistor as no room on PCB. attached schematic as below. i also added device information on schematic like electrical parameter and package size. very appreciate you help me review it again, are they work? I selected 0402 packages for some device and SOD123 for D1 and D4 in order to reduce PCB size, is it meet DAC work condition?
I have made some prototype samples with attached schematic , samples worked well just after complete hand soldering. but after some days, i found output current drift, more than 4.1mA at zero point, if add pressure to sensor, output increased . some extreme time, current up to 100+ mA, i don't know why.
keep safe!
thanks