*1.83 An amplifier with a frequency response of the type shown in Fig. 1.21 is specified to have a phase shift of magnitude no greater than 5.7° over the amplifier bandwidth, which extends from 100 Hz to 1 kHz. You ...

## electricalstudent Latest Questions

1.82 Consider the circuit in Fig P1.82. You are required to make the transfer function independent of frequency. Show this is achieved by selecting C1 with a value C2(R2/R1). Under this condition the circuit is called a compensated attenuator and ...

D **1.81 A transconductance amplifier having the equivalent circuit shown in Table 1.1 is fed with a voltage source Vs having a source resistance Rs, and its output is connected to a load consisting of a resistance RL in parallel ...

1.80 For the circuit shown in Fig. P1.80, first evaluate Ti(s) = Vi(s)/Vs(s) and the corresponding cutoff (corner) frequency. Second, evaluate To(s) = Vo(s)/Vi(s) and the corresponding cutoff frequency. Put each of the transfer functions in the standard form (see ...

1.79 A voltage amplifier has the transfer function

D 1.78 An amplifier with an input resistance of 100 kΩ and an output resistance of 1 kΩ is to be capacitively coupled to a 10- kΩ source and a 1- kΩ load. Available capacitors have values only of the ...

D *1.77 A designer wishing to lower the overall upper 3-dB frequency of a three-stage amplifier to 5 kHz considers shunting one of two nodes to ground with a capacitor: Node A, at the output of the first stage, or ...

1.76 When a high-frequency transconductance amplifier whose output resistance is 100 kΩ is connected to a load capacitor, the measured 3-dB bandwidth of the amplifier is reduced from 5 MHz to 100 kHz. Estimate the value of the load capacitor. ...

1.75 The unity-gain voltage amplifiers in Fig. P1.75 have infinite input resistances and zero output resistances and thus function as perfect buffers. Assuming that their gain is frequency independent, convince yourself that the overall gain Vo/Vi will drop by 3 ...

1.74 Measurement of the frequency response of an amplifier yields the data in the following table: