ic741 operational amplifier m.s.p.v.l polytechnic college pavoorchatram
TRANSCRIPT
IC741 Operational Amplifier
M.S.P.V.L Polytechnic CollegePavoorchatram
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Introduction
The 741 is the godfather of all operational
amplifiers (amplifiers on a chip).
One of its advantages is that it is compensated (its
frequency response is tailored) to ensure that under
most curcumstances it won't produce unwanted
spurious oscillations.
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Inverting and Non-Inverting amplifier
Inverting
If the voltage goes into pin two then it is known as
an INVERTING AMPLIFIER.
Non-Inverting
If the voltage goes into pin three then the circuit
becomes a NON-INVERTING AMPLIFIER.
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Inverting and Non-Inverting amplifier
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741 in 8-pin DIL (Dual In Line) pack
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The 741 is usually supplied in an 8-pin ‘DIL’ (Dual In
Line) or ‘DIP’ (Dual Inline Package, or sometimes Dual
Inline Plastic) package with a pinout.
This has proved so popular that many other competing
op-amps have adopted the same package/pinout.
741 in 8-pin DIL (Dual In Line) pack
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Internal circuitry of 741 OP-AMP
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Bandwidth and Gain of 741
The LM741 series are general purpose operational
amplifiers which feature improved performance over
industry standards like the LM709.
They are direct, plug-in replacements for the 709C,
LM201, MC1439 and 748 in most applications.
LM741
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LM741
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The LM741C is identical to the LM741/LM741A except
that the LM741C has their performance guaranteed
over a 0°C to +70°C temperature range, instead of -
55°C to +125°C.
LM741
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Circuits of IC741 OP-AMP
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741 Light/Dark Sensor
741 OpAmp Simulation: Schematic
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Time
0s 1.0ms 2.0ms 3.0ms 4.0msV(Vin:+)
-1.0mV
-0.5mV
0V
0.5mV
1.0mV
1mV Amplitude
741 OpAmp Simulation: Input
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Time
0s 1.0ms 2.0ms 3.0ms 4.0msV(Vo) - 28.234mV
-20mV
0V
20mV
Inverted output
20mV Amplitude
741 OpAmp Simulation: Output
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The End
…… Thank You …….
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