Wide Bandwidth Low Noise, Low Drift Amplifier

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  • Power BW: fmax = Sr / (2p Vp) >= 240 kHz
  • Parasitic input capacitance (C1 approx. 3 pF for LF155, LF156, and LF157 plus any additional layout capacitance) interacts with feedback elements and creates undesirable high frequency pole. To compensate add C2 such that: R2C2 is greater than or equal to R1C1.

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Wide Bandwidth Low Noise, Low Drift Amplifier - Circuitos de Electronica

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