2.115 Consider a unity-gain follower utilizing an internally compensated op amp with ft = 2 MHz. What is the 3-dB frequency of the follower? At what frequency is the gain of the follower 1% below its low-frequency magnitude? If the input to the follower is a 1-V step, find the 10% to 90% rise time of the output voltage. (Note: The step response of STC low-pass networks is discussed in Appendix E. Specifically, note that the 10%–90% rise time of a low-pass STC circuit with a time constant τ is 2.2τ.)

115 - 2.115 Consider a unity-gain follower utilizing an internally compensated op amp with ft = 2 MHz. What is the 3-dB frequency of the follower? At what frequency is the gain of the follower 1% below its low-frequency magnitude? If the input to the follower is a 1-V step, find the 10% to 90% rise time of the output voltage. (Note: The step response of STC low-pass networks is discussed in Appendix E. Specifically, note that the 10%–90% rise time of a low-pass STC circuit with a time constant τ is 2.2τ.)

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images - 2.115 Consider a unity-gain follower utilizing an internally compensated op amp with ft = 2 MHz. What is the 3-dB frequency of the follower? At what frequency is the gain of the follower 1% below its low-frequency magnitude? If the input to the follower is a 1-V step, find the 10% to 90% rise time of the output voltage. (Note: The step response of STC low-pass networks is discussed in Appendix E. Specifically, note that the 10%–90% rise time of a low-pass STC circuit with a time constant τ is 2.2τ.)

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