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Answer by Andy aka for DC transimpedance amplifier feedback capacitor
Is this feedback capacitor necessary when using the amplifier in DC?It might be necessary but, that depends on the circuits that follow. Generally not needed (and note that not fitting it doesn't make...
View ArticleAnswer by TimWescott for DC transimpedance amplifier feedback capacitor
Yes, the feedback capacitor is necessary with most op-amps.Op-amps don't like capacitance to ground on their negative input, and photodiodes generally have lots of area, which means lots of...
View ArticleAnswer by tobalt for DC transimpedance amplifier feedback capacitor
It actually restricts the bandwidth but improves stability.Its necessary value depends on the actual type of opamp and its input capacitance.Without it, the transimpedance amplifier might oscillate...
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DC transimpedance amplifier feedback capacitor
I am designing a simple photodiode light sensor circuit. The circuit will use a transimpedance amplifier to generate a usable voltage from the light level detected by the photodiode. The most basic...
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