IC741 Operational Amplifier M.S.P.V.L Polytechnic College Pavoorchatram

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.

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.

Inverting and Non-Inverting amplifier

741 in 8-pin DIL (Dual In Line) pack

 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

Internal circuitry of 741 OP-AMP

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

LM741

 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

Circuits of IC741 OP-AMP

741 Light/Dark Sensor

741 OpAmp Simulation: Schematic

741 OpAmp Simulation: Input

741 OpAmp Simulation: Output

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