Exam 18: Linear OP AMP Circuits

What transducer converts a change in temperature into a change in resistance?

Advantages of a noninverting op amp circuit include stable voltage gain,high input impedance,and low output impedance.

Because the output of a Wheatstone bridge is a small dc voltage with a large common-mode voltage,what type of amp must be used?

An ac-coupled amplifier needs a frequency response down to zero hertz.

Differential inputs often use a first stage of two voltage followers in order to

Linear op amp circuits include inverting amps,differential amps,instrumentation amps,and current boosters.

A differential amplifier is often used in applications in which the differential input signal is a large dc voltage (volts)and the common-mode input signal is a small dc voltage (millivolts).

The output of a linear op amp circuit has the same shape as the input signal.

One of the most important characteristics of a differential amplifier is its

A voltage reference is a circuit that produces an extremely accurate and stable output voltage.

In applications where the number of inputs are limited and where high precision is not required

Aside from the op amp's CMRR,another source of common-mode error is the

When the input and output voltages of an op amp can swing all the way to the positive or negative supply voltages,what condition results?

The characteristics of an instrumentation amplifier does not include

Burning off resistor areas on a semiconductor chip with a laser in order to get an extremely precise value of resistance is referred to as

For a 741C op amp,the minimum CMRR is 70 dB at low frequencies.

A Wheatstone bridge is balanced when

The total voltage gain with an input signal driving both sides of an op amp equals the voltage gain of the inverting channel

When a power transistor with a higher current gain and rating than an op amp is used to get more short-circuit output current,it is referred to as

The LED that converts current into light is an example of