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Circuits Sensor Interface & Bias Light Sensors & Photodiodes Photodiode Interface & Transimpedance Amps
Circuits Signal Conditioning Operational Amplifiers (Op Amps) Low Noise Amplifiers
Circuits Signal Conditioning Operational Amplifiers (Op Amps) High Speed Amplifiers
Circuits Signal Conditioning Operational Amplifiers (Op Amps) Low Bias Current Amplifiers

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Matching Circuits
Wide Bandwidth Photodiode Amplifier

View Full Size Image View Original Datasheet Wide Bandwidth Photodiode Amplifier

Wide bandwidth performance from a small photodiode requires minimizing the total input capacitance. In this circuit the amplifier's differential input capacitance is bootstrapped by the feedback with R1 and R2. Choosing the amplifier input that is at the corner of the package for the dual LTC6244 also minimizes pin-to-pin capacitance. Taking a gain of three inside the feedback loop also increases the circuits gain bandwidth product.



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