AN-1852Designing With pH Electrodes - TI.com

U2 V + +-U1 V + LM4140A-1.0 V + R 2 10 k : R 1 10 k : V OUT = V pH + 512 mV V OFFSET = 512 mV U1, U2 LMP7721 pH Electrode Temperature LM35 V + pH Electrode Introduction www.ti.com This results in a sensor output full-scalerange that is dependent on the temperature.

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