pic.programmer
Advanced Member level 3
How to design an OpAmp Circuit for pH Sensor which will be interfaced to PIC.
The PH sensor gives 420 mV for 7pH and -420 mV for 14 pH. I need to design an OpAmp Circuit using 741 or LM358. How can I design the OpAmp Circuit. Further the output of the amplifier will be input to ADC of PIC for measuring the pH.
The PH sensor gives 420 mV for 7pH and -420 mV for 14 pH. I need to design an OpAmp Circuit using 741 or LM358. How can I design the OpAmp Circuit. Further the output of the amplifier will be input to ADC of PIC for measuring the pH.