Hi,
I have an oxygen sensor which has just 2 wires and outputs a minimum of 7mV and a maximum of 11mV. I calculated that if I amplify this voltage by 450x, the output will be suitable for a micro controller to read from a 10bit ADC.
My question is this. I have never used Op Amps and I have read tutorials about them but I'm still not able to design that part of the circuit.
Would anyone kindly guide me to build the Op Amp portion of the circuit such that I input the sensor and output directly to uC amplifying the voltage by 450?
http://oxycheq.com/index.php?main_page=product_info&cPath=1_6&products_id=22
Thanks a lot
X
I have an oxygen sensor which has just 2 wires and outputs a minimum of 7mV and a maximum of 11mV. I calculated that if I amplify this voltage by 450x, the output will be suitable for a micro controller to read from a 10bit ADC.
My question is this. I have never used Op Amps and I have read tutorials about them but I'm still not able to design that part of the circuit.
Would anyone kindly guide me to build the Op Amp portion of the circuit such that I input the sensor and output directly to uC amplifying the voltage by 450?
http://oxycheq.com/index.php?main_page=product_info&cPath=1_6&products_id=22
Thanks a lot
X