Podcast
Questions and Answers
In an ideal integrator, the feedback element is a(n):
In an ideal integrator, the feedback element is a(n):
- Two op-amps and seven resistors
- One op-amp with a certain feedback arrangement (correct)
- Crosses zero
- Three resistors proportional to the weight of C
What must the ratio Rf /Ri be in a scaling adder?
What must the ratio Rf /Ri be in a scaling adder?
- Resistors must have a value of 4.7 kΩ times the number of inputs (correct)
- To make a basic instrumentation amplifier
- The unity-gain frequency
- Inputs
What is the purpose of op-amp circuits?
What is the purpose of op-amp circuits?
- The unity-gain frequency (correct)
- Circuits is negative
- Answers (a) and (c) is positive
- Inputs
What happens when you apply a triangular waveform in terms of output bounding in a comparator?
What happens when you apply a triangular waveform in terms of output bounding in a comparator?
Which stages are connected by copper strips in many isolation amplifiers?
Which stages are connected by copper strips in many isolation amplifiers?
What characterizes the output of a differentiator?
What characterizes the output of a differentiator?
What is the primary purpose of offset nulling?
What is the primary purpose of offset nulling?
How does bias current compensation affect slew rate?
How does bias current compensation affect slew rate?
What effect does negative feedback have on an op-amp's voltage gain?
What effect does negative feedback have on an op-amp's voltage gain?
What does the midrange open-loop gain of an op-amp extend from and to?
What does the midrange open-loop gain of an op-amp extend from and to?
What is the name for the frequency at which the open-loop gain of an op-amp equals 1?
What is the name for the frequency at which the open-loop gain of an op-amp equals 1?
How do CMRR and bias current compensation affect input/output impedances and bandwidth?
How do CMRR and bias current compensation affect input/output impedances and bandwidth?
What is the purpose of AGC?
What is the purpose of AGC?
What does an input transducer convert?
What does an input transducer convert?
In an op amp with a rail-to-rail output, what can be said about its output stage?
In an op amp with a rail-to-rail output, what can be said about its output stage?
What happens when a JFET is used in an AGC circuit?
What happens when a JFET is used in an AGC circuit?
If an op amp has an open-loop voltage gain of 100,000, what is the voltage gain at the open-loop cutoff frequency?
If an op amp has an open-loop voltage gain of 100,000, what is the voltage gain at the open-loop cutoff frequency?
What is the typical value of open-loop voltage gain for an op amp?
What is the typical value of open-loop voltage gain for an op amp?
What is the purpose of trimming a resistor?
What is the purpose of trimming a resistor?
How is gain adjusted for a 741 op amp?
How is gain adjusted for a 741 op amp?
What is the equivalent of 1 ppm?
What is the equivalent of 1 ppm?
What does the slew-rate specification of an op amp indicate?
What does the slew-rate specification of an op amp indicate?
What is true about the input stage of every op amp?
What is true about the input stage of every op amp?
What characterizes a virtual ground in an inverting amplifier?
What characterizes a virtual ground in an inverting amplifier?
What is the output voltage of the amplifier when the input signals are 2.5V and 2.4V?
What is the output voltage of the amplifier when the input signals are 2.5V and 2.4V?
Which statement is true regarding operational amplifiers?
Which statement is true regarding operational amplifiers?
In a voltage-to-current converter, what does the output current depend on?
In a voltage-to-current converter, what does the output current depend on?
If an op amp has an input bias current of 80 uA, what would be the predictable voltage gain?
If an op amp has an input bias current of 80 uA, what would be the predictable voltage gain?
What is the common-mode rejection ratio of a differential amplifier with a voltage gain of 120×103?
What is the common-mode rejection ratio of a differential amplifier with a voltage gain of 120×103?
When the open-loop gain of an operational amplifier falls to unity, it is referred to as the __________.
When the open-loop gain of an operational amplifier falls to unity, it is referred to as the __________.
