Library/Engineering/The Art Of Electronics - 2nd Edition/FEEDBACK AND OPERATIONAL AMPLIFIERS

FEEDBACK AND OPERATIONAL AMPLIFIERS

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Questions

Question 1

According to the component data table, what is the typical slew rate, in Volts per microsecond, for the OP-16E operational amplifier?

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Question 2

What is the primary purpose of applying positive feedback to a comparator circuit, as described in the section on Schmitt triggers?

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Question 3

Who is credited with designing the first commercially successful monolithic operational amplifier, the Fairchild µA709, in 1965?

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Question 4

For the AD549L op-amp listed in Table 4.2, what is the specified maximum input current in nanoamps?

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Question 5

What is the primary function of the 'daughterboard' solution mentioned in the text for dealing with a discontinued IC?

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Question 6

What is the maximum output current in milliamperes for the LM675 op-amp according to the data table?

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Question 7

In the active peak detector circuit, what problem is caused by the op-amp's finite slew rate?

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Question 8

For the OPA541B power op-amp, what is the specified maximum supply current in milliamperes?

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Question 9

What is the primary characteristic of a 'programmable op-amp'?

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Question 10

What does a dot in the 'OUT' column of the 'Swing to supplies' section of the op-amp data table signify?

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Question 11

In the context of op-amp stability and frequency compensation, what is the stability criterion for a feedback amplifier?

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Question 12

What is the typical gain-bandwidth product (fT) in MHz for the LTC1052 chopper-stabilized op-amp?

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Question 13

What is 'dielectric absorption' in a capacitor, as described in the text?

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Question 14

For the HA2645 op-amp, what is its minimum specified Common Mode Rejection Ratio (CMRR) in dB?

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Question 15

In the context of op-amp limitations, what trade-off is often faced when choosing between bipolar and FET-input op-amps?

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Question 16

What is the typical slew rate in Volts per microsecond for the SG1173 monolithic power op-amp?

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Question 17

What technique is used in a Sample-and-Hold (S/H) circuit to minimize voltage 'droop' during the hold interval?

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Question 18

According to the table of recommended op-amps, what is the typical slew rate in Volts per microsecond for the OP-27E?

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Question 19

What was the key improvement of the LM301 op-amp over the earlier µA709?

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Question 20

For the LM344 high-voltage op-amp, what is the maximum rated supply voltage in volts?

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Question 21

In a differentiator circuit, why is it necessary to 'roll off the differentiator action at some maximum frequency'?

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Question 22

What is the maximum differential input voltage specified for the ICH8500A op-amp?

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Question 23

How does the 'T-network' trick shown in Figure 4.49 help in op-amp integrator design?

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Question 24

What is the typical output current in amperes for the OPA512 power op-amp?

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Question 25

What does the term 'dominant-pole compensation' refer to in op-amp design?

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Question 26

For the popular 324 quad op-amp, which statement accurately describes its output swing capability when V- is ground?

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Question 27

What is the specified minimum gain in dB for the ICL7650S chopper-stabilized op-amp?

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Question 28

In the logarithmic converter circuit shown in Figure 4.35, what is the role of the second op-amp?

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Question 29

What is the maximum offset drift in microvolts per degree Celsius for the AD744K op-amp?

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Question 30

Which op-amp is described as the 'industry standard for many years' with internal compensation and was introduced by Fairchild?

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Question 31

What is the specified maximum supply current in milliamperes for the 1436 high-voltage op-amp?

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Question 32

In the 'active clamp' circuit shown in Figure 4.43, what happens when the input voltage exceeds +10 volts?

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Question 33

What is the maximum supply voltage specified for the AD654 V/F converter, as shown in the VCO table?

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Question 34

Which popular op-amp is described as being for 'single-supply operation' and is the dual version of the 324 quad op-amp?

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Question 35

According to the table for high-voltage op-amps, what is the Pdiss (power dissipation) at 50 degrees Celsius for the PA12 from Apex?

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Question 36

What is the primary reason that a simple integrator circuit (Figure 4.47) with its input grounded will still have its output 'wander off'?

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Question 37

What is the typical transition frequency (fT) in MHz for the OP-90E precision micropower op-amp?

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Question 38

For single-supply op-amps like the LM324, what is a key characteristic of their input common-mode range?

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Question 39

What is the maximum supply voltage for the LM12 monolithic power op-amp?

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Question 40

Why would an uncompensated op-amp like a 748 oscillate if connected as a simple follower?

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Question 41

What is the maximum offset voltage, in millivolts, for the LT1028A precision op-amp?

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Question 42

In the 'bad circuit' example of a DC amplifier with a gain of 100 (Figure 4.95 F), using a 741 op-amp, what is a likely major source of error?

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Question 43

What is the maximum junction temperature (Tj max) for a 2N3055 power transistor in a TO-3 package?

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Question 44

What is the purpose of the resistor-diode network described in footnote (h) on page 207?

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Question 45

According to the power op-amp data table, what is the typical slew rate for the MSK792 from M.S. Kennedy Corp?

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Question 46

What is the primary advantage of the 741 op-amp's design over the LM301?

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Question 47

What is the maximum offset voltage, in millivolts, for the OPA111B precision JFET op-amp?

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Question 48

In a 'Bad Circuits' example (Figure 4.95 G), a 358 op-amp is used as a x100 audio amplifier from a single supply. What is the fundamental flaw in this design?

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Question 49

What is the typical power dissipation in watts for the LH4104 power op-amp?

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Question 50

Why are trade-offs typically necessary in electronic design, for instance, when choosing feedback resistor values for a general-purpose op-amp?

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