Other Parts Discussed in Thread: OPA320, REF5020, , OPA388, LMP91000
I am designing a gas sensor circuit. Please see circuit design below and advise.
The Amplifier support team has suggested change below and asked me to confirm with Data converter support. However, OPA320 is not available. Please suggest alternate parts that I can source easily.
Also please advise on the rest of the circuit. Mainly, I am not using any buffer for the ADC channel inputs. Is this OK? The circuit will have 4 gas sensors (Alphasense/Semeatech). Please links below for gas sensor specs.