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D*2.127 In designing with op amps one has to check the limitations on the voltage and frequency ranges of operation of the closed-loop amplifier, imposed by the op-amp finite bandwidth (ft), slew rate (SR), and output saturation (Vomax). This problem ...
2.126 For an amplifier having a slew rate of 40 V/µs, what is the highest frequency at which a 2-V peak-to-peak sine wave can be produced at the output? 6.37 MHz
2.125 An inverting amplifier with a gain of −5 V/V and input resistance 20 kΩ uses an op amp with a slew rate of 1 V/µs, maximum output current of ±1 mA, and ft = 3 MHz. (a) At what frequency ...
2.124 For operation with 10-V output pulses with the requirement that the sum of the rise and fall times represent only 20% of the pulse width (at half-amplitude), what is the slew-rate requirement for an op amp to handle pulses ...
SIM 2.123 An op amp having a slew rate of 1.2 V/µs (such as the ADA4077 operating from ±5 V supplies with a 2 kΩ load) is to be used in the unity-gain follower configuration, with input pulses that rise ...
SIM 2.122 Consider an op amp connected in the inverting configuration to realize a closed-loop gain of −100 V/V utilizing resistors of 1 kΩ and 100 kΩ. A load resistance RL is connected from the output to ground, and a ...
2.121 A particular op amp using ±15-V supplies operates linearly for outputs in the range −14 V to +14 V. If used in an inverting amplifier configuration of gain −100, what is the rms value of the largest possible sine ...
**2.120 Consider an inverting summer with two inputs, V1 and V2, designed so that an ideal op amp provides Vo = −(V1 + 2V2). If the op amp has a finite gain A, show that
2.119 Consider the use of an op amp with a unity-gain frequency ft in the realization of: (a) An inverting amplifier with dc gain of magnitude K. (b) A noninverting amplifier with a dc gain of K. In each case find the 3-dB ...
D**2.118 A designer, wanting to achieve a stable gain of 100 V/V with a 3-dB frequency above 5 MHz, considers her choice of amplifier topologies. What unity-gain frequency would a single operational amplifier require to satisfy her need? Unfortunately, the ...