ata90
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Gain changes in simple inverting-Amplifier over time
I built up simple inverting-Amplifier with LM358 which Gain is R2/R1 = 26.
input voltage is 20mV fixed and hence output voltage should be approximately 520mV. the problem is that the output voltage changes over time while the temperature(25°C) and other circumstances are stable. for instance, if output is 520mV today, next week it changes to 530mV.
any solutions?
I built up simple inverting-Amplifier with LM358 which Gain is R2/R1 = 26.
input voltage is 20mV fixed and hence output voltage should be approximately 520mV. the problem is that the output voltage changes over time while the temperature(25°C) and other circumstances are stable. for instance, if output is 520mV today, next week it changes to 530mV.
any solutions?
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