64901. Refer to the given figure. Calculate the bandwidth.

64902. Refer to this figure. The purpose of R4 is

64903. Refer to the given figure. Find the midrange gain of this amplifier.

64904. An RC network has R = 47 k and C = 0.22 F. What is the cutoff frequency?

64905. A certain op-amp has an open-loop voltage gain of 150,000. What is this gain expressed in dB?

64906. An IC unit made using both ________ and ________ transistors is called a ________ circuit.

64907. Refer to the given figure. You need an amplifier with an input impedance of 12 k. You must not change the amplifier voltage gain. The new value of Ri would be ________ and the new value of Rf would be ________.

64908. What is the slew rate of an op-amp if the output voltages change from 2 V to 3 V in 0.2 ms?

64909. Refer to the given figure. This amplifier is known as

64910. Calculate the output voltage if R1 = R2 = R3 = 100 , Rf = 1 k, and V1 = V2 = V3 = 50 mV.

64911. If Rf = R1, the voltage gain is ________.

64912. The maximum rate of change of the output voltage in response to a step input voltage is the ________ of an op-amp.

64913. At what input voltage level does the output voltage level become numerically equal to the value of the differential gain of the amplifier?

64914. Refer to the given figure. The op-amp has a unity-gain bandwidth of 3 MHz. Determine the BW of the circuit.

64915. A practical op-amp has very ________ input impedance, very ________ output impedance, very ________ open-loop voltage gain, and a ________ bandwidth.

64916. What is the level of the roll-off in most op-amps?

64917. Calculate the output impedance of an inverting op-amp using the 741 op-amp (ro = 75 , AOL = 200 V/mV) if R1 = 100 and Rf = 1 k.

64918. The input offset voltage drift is a parameter directly related to VOS and ________.

64919. What is the difference voltage if the inputs are an ideal opposite signal?

64920. Refer to the given figure. Determine the bandwidth.

64921. Refer to the given figure. The midrange voltage gain of this amplifier is

64922. Which of the following circuit conditions affect(s) the output offset voltage of an op-amp?

64923. A(n) ________ amplifier configuration has a higher input impedance and a lower output impedance than the op-amp itself.

64924. In which of the following operations is the resulting output signal of the differential amplifier near zero?

64925. What is the voltage gain of the unity follower?

64926. Negative feedback added to an op-amp ________ the bandwidth and ________ the gain.

64927. It takes an op-amp 22 s to change its output from –15 V to +15 V. Determine the slew rate.

64928. Refer to the given figure. The op-amp has a unity-gain bandwidth of 1.7 MHz. Find the bandwidth of the circuit.

64929. An RC network has R = 500 k and C = 10 pF. Find the value of fc.

64930. What is the scale multiplier (factor) of a basic integrator?

64931. Calculate the overall voltage gain of the circuit if R1 = 100 and Rf = 1 k.

64932. Which of the following circuits is referred to as a BiMOS circuit?

64933. Refer to the given figure. A dc voltage of –1.2 V is applied. VCC = ±12 V. What is the output voltage?

64934. In the differential amplifier circuit, which of the following terminals are connected together?

64935. What is the cutoff frequency of an op-amp if the unity-gain frequency is 1.5 MHz and the open-loop gain is 100,000?

64936. The ________ is the voltage gain of an op-amp with external feedback.

64937. Refer to the given figure. The voltage gain of this amplifier is

64938. A(n) ________ amplifier configuration has an input impedance approximately equal to the input resistor Ri and an output impedance approximately equal to the output impedance of the op-amp itself.

64939. What is the difference voltage if the inputs are an ideal in-phase signal?

64940. Refer to this figure. The purpose of R1 and R2 is

64941. Refer to the given figure. If an input signal of –0.5 V were applied, determine the output voltage.

64942. Calculate the input voltage if R1 = 100 , Rf = 1 k, and Vout = 550 mV.

64943. The midrange open-loop gain of an op-amp is 135 dB. With negative feedback this gain is reduced to 72 dB. The closed-loop gain is

64944. Refer to the given figure. Find the midrange gain of this op-amp amplifier.

64945. What is the level of the current through the amplifier input(s) to ground in an op-amp?

64946. Open-loop voltage gain of an op-amp can range up to ________.

64947. At what input voltage level does the output voltage level become numerically equal to the value of the common-mode gain of the amplifier?

64948. Refer to the given figure. The unity-gain bandwidth of this op-amp is 10.4 kHz. What is the bandwidth of the circuit?

64949. Which of the following is (are) the result of gain reduction by a feedback?

64950. The common-mode rejection ratio (CMRR) is defined by ________.

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