Microelectronic Circuits 6th Edition solutions

Microelectronic Circuits 6
An internally compensated op amp having an ft of 10 MHz and dc gain of 106 utilizes Miller compensation around an inverting amplifier stage with a gain of 1000. If space exists for at most a 50-pF capacitor, what resistance level must be reached at the input of the Miller amplifier for compensation t

Microelectronic Circuits 6
Sketch the transfer characteristic vO versus vI for the limiter circuits shown in Fig. P4.85. All diodes begin conducting at a forward voltage drop of 0.5 V and have voltage drops of 0.7 V when conducting a current iD  1 mA.

Microelectronic Circuits 6
In the capacitor-coupled attenuator circuit shown in Fig. P4.48, I is a dc current that varies from 0 mA to 1 mA, and C1 and C2 are large coupling capacitors. For very small input signals, so that the diodes can be representedby their small-signal resistances rd1 and rd2, show that and hence that ,

Microelectronic Circuits 6
The circuit in Fig. P4.74 implements a complementary-output rectifier. Sketch and clearly label the waveforms of and Assume a 0.7-V drop across each conducting diode. If the magnitude of the average of each output is to be 15 V, find the required amplitude of the sine wave across the entire second

Microelectronic Circuits 6
(a) Find Ad and Acm for the difference amplifier circuit shown in Fig. P2.68. (b) If the op amp is specified to operate properly as long as the common-mode voltage at its positive and negative inputs falls in the range 2.5 V, what is the corresponding limitation on the range of the input common-mode

Microelectronic Circuits 6
In each of the ideal-diode circuits shown in Fig. P4.4, vI is a 1-kHz, 10-V peak sine wave. Sketch the waveform resulting at vO. What are its positive and negative peak values?

Microelectronic Circuits 6
Assuming that the diodes in the circuits of Fig. P4.9 are ideal, find the values of the labeled voltages and currents.

Microelectronic Circuits 6
The op amp in the precision rectifier circuit of Fig. P4.83 is ideal with output saturation levels of 12 V. Assume that when conducting the diode exhibits a constant voltage drop of 0.7 V. Find v, vO, and vA for: (a) vI = +1 V (b) vI = +2 V (c) vI = 1 V (d) vI = 2 V Also, find the average output volt

Microelectronic Circuits 6
For the circuit shown in Fig. P2.62, express vO as a function of v1 and v2. What is the input resistance seen by v1 alone? By v2 alone? By a source connected between the two input terminals? By a source connected to both input terminals simultaneously?

Microelectronic Circuits 6
For each of the circuits in Fig. P5.56, find the labeled node voltages. For all transistors, (W/L) = 0.5 mA/V2, Vt = 0.8 V, and

Microelectronic Circuits 6
An inverting amplifier with nominal gain of 20 V/V employs an op amp having a dc gain of 104 and a unity-gain frequency of 106 Hz. What is the 3-dB frequency f3dB of the closed-loop amplifier? What is its gain at 0.1 f3dB and at 10 f3dB?

Microelectronic Circuits 6
For the circuits shown in Fig. P4.3 using ideal diodes, find the values of the labeled voltages and currents

Microelectronic Circuits 6
Use the iterative-analysis procedure to determine the diode current and voltage in the circuit of Fig. 4.10 for VDD = 1 V, R = 1 k, and a diode having IS = 1015 A.

Microelectronic Circuits 6
A 9.1-V zener diode exhibits its nominal voltage at a test current of 28 mA. At this current the incremental resistance is specified as 5 . Find VZ0 of the zener model. Find the zener voltage at a current of 10 mA and at 100 mA.

Microelectronic Circuits 6
Figure P1.6(a) shows a two-resistor voltage divider. Its function is to generate a voltage VO (smaller than the power-supply voltage VDD) at its output node X. The circuit looking back at node X is equivalent to that shown in Fig. P1.6(b). Observe that this is the Thvenin equivalent of the voltage di

Microelectronic Circuits 6
The two wires leading from the output terminals of a transducer pick up an interference signal that is a 60-Hz, 1V sinusoid. The output signal of the transducer is sinusoidal of 10-mV amplitude and 1000-Hz frequency. Give expressions for vcm, vd, and the total signal between each wire and the system

Microelectronic Circuits 6
Holes are being steadily injected into a region of ntype silicon (connected to other devices, the details of which are not important for this question). In the steady state, the excess-hole concentration profile shown in Fig. P3.10 is established in the n-type silicon region. Here excess means over a

Microelectronic Circuits 6
Augment the rectifier circuit of Problem 4.68 with a capacitor chosen to provide a peak-to-peak ripple voltage of (i) 10% of the peak output and (ii) 1% of the peak output. In each case: (a) What average output voltage results? (b) What fraction of the cycle does the diode conduct? (c) What is the av

Microelectronic Circuits 6
The CMOS op amp of Fig. 12.1 is fabricated in a process for which for all devices is 24 . If all transistors have L = 0.5 m and are operated at equal overdrive voltages, find the magnitude of the overdrive voltage required to obtain a dc open-loop gain of 6400 .

Microelectronic Circuits 6
A class A emitter follower, biased using the circuit shown in Fig. 11.2, uses VCC = 5 V, R = RL = 1 k, with all transistors (including Q3) identical. Assume VBE = 0.7 V, VCEsat = 0.3 V, and to be very large. For linear operation, what are the upper and lower limits of output voltage, and thecorresp