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Operational Amplifier Gain

In this section we will use PSpice to determine the gain and bandwidth of an operational amplifier with negative feedback. Wire the circuit shown below  [Pg.300]

DC voltage source lf411 Operational amplifier Node label [Pg.301]

This example uses the non-ideal op-amp model of an LF411C. Since there is only one op-amp in this circuit, we will not reach the component limit of the Lite version. The method described here can be used for circuits with several op-amps. However, the component limit of the Lite version of PSpice limits us to only two non-ideal op-amp models. If more than two op-amps are needed, the Ideal OPAMP model can be used. Since the Ideal OPAMP model has no frequency limitations, it cannot be used to find the bandwidth, but it can be used to find the gain. [Pg.301]

We must set up an AC Sweep. Select PSpice and then New Simulation Profile from the Capture menus and then enter a name for the profile and click the Create button. Select the AC Sweep/Nolse Analysis type and fill in the parameters as shown in the AC Sweep dialog box below  [Pg.301]

Z Monte Corio/Woret Cast ZPwamebic Sweep Temperature (Swtep) Save Bios Point Load Bios Point [Pg.302]

Amplifier bandwidth. The range of signal frequencies over which an amplifier is capable of undistorted or unattenuated transmission. An operational amplifier should transmit DC voltage accurately the upper (bandwidth) limit is defined as the 3-dB point (attenuation factor of two). Because bandwidth can vary with gain, the product of gain x bandwidth can be a more useful parameter. [Pg.430]

DifTerential amplifier. An operational amplifier with two inputs of opposite-gain polarity with respect to its output. Differential-output amplifiers can also have two opposite-sense outputs. [Pg.431]

Operational amplifier. A linear, high-gain DC voltage or current amplifier with high input impedance, low output impedance, and the capability of producing a bipolar output from a bipolar input. [Pg.431]

An additional consideration is the gain-bandwidth product specification of the operational amplifier used as the error amplifier. If the Bode character-... [Pg.206]

Real operational amplifier (compliance limitations, offset current and voltage) Voltage follower Follower with gain Inverter Integrator Differentiator Comparators... [Pg.173]

Electrical measurements with both types of cells were made by using two devices as the gain-controlling elements of an inverting operational amplifier circuit which was driven with a constant input voltage (E. ). The ratio of the resistance of the reference device,... [Pg.157]

Detection of the particles is accomplished by means of their attenuation of a light beam provided by a halogen lamp and collimated by two slit assemblies. A silicon photodiode and an operational amplifier circuit are used to monitor the light intensity. Adjustable gain and offset potentiometers are located on the control module. The signal can be displayed on a stripchart recorder and is monitored by means of a digital panel meter. [Pg.181]

A typical response for an operational amplifier is given in Figure 6.1(b). The output potential Vb must have a value between Vg+ and Vs-. For an ideal operational amplifier, the open-loop gain Aop is very large (ideally infinite), such that... [Pg.99]

Estimate the maximum error in the term V — ref if the operational amplifiers used in Figure 6.8 had an open-loop gain of 10 and power source of 10 V. [Pg.107]

See other pages where Operational Amplifier Gain is mentioned: [Pg.300]    [Pg.300]    [Pg.12]    [Pg.75]    [Pg.197]    [Pg.241]    [Pg.245]    [Pg.362]    [Pg.142]    [Pg.157]    [Pg.198]    [Pg.242]    [Pg.251]    [Pg.186]    [Pg.158]    [Pg.173]    [Pg.256]    [Pg.256]    [Pg.383]    [Pg.745]    [Pg.732]    [Pg.98]    [Pg.36]    [Pg.362]    [Pg.105]    [Pg.309]    [Pg.542]    [Pg.542]    [Pg.546]    [Pg.547]    [Pg.547]    [Pg.581]    [Pg.581]    [Pg.359]    [Pg.109]    [Pg.168]    [Pg.309]    [Pg.100]    [Pg.102]   


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