With all due respect, -You may use any textbook, data sheets for op am parameter

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Q1/ Fully discuss by comparing the actual specifications between the 741 op amp and the op amp used in the lab. Please include design specs from the data specs for both op amp and also discuss the limitations of the typical op amp.

NOTE: the op amp used in the lab is TLC 2274

Explanation / Answer

IC - 741 ( OP - AMP) MEAN The initials, IC, simply mean that the op-amp is made inside an integrated circuit. Op-amps have a total of 8 pins, and out of those 8 pins, 1 is inactive( pin no. 8) and 7 are active. 4 of the pins (2, 3, 4, and 7) supply the output, and one of the pins (pin 6) observes the output. So 7 means 7 active pins, 4 means 4 inputs, and 1 means 1 output.   the most popular operational amplifiers are the venerable IC 741 and the more recent IC 324 The most popular comparators include the IC 311 and the IC 339. These were developed by National Semiconductor laboratory. there are two schematics are very similar with both having identical differential inputs, but observe the differences in the output structure.IC 324 has a complementary output while the IC 339 is open collector. In the complementary output, current can flow in either direction as required (either source or sink) while the open collector output can only sink current. This basic difference is typical of all op amps and comparators. Another more subtle difference is the presence of a compensation capacitor in the op amp –this is typical of perhaps 99% of all op amps. An operational amplifier is slowed down by the compensation capacitor in order to make it stable (prevent oscillation), while a comparator is intended to be as fast as possible in order to minimize propagation delay and to provide fast transition time at the output. However, both op amps and comparators often share this common problem: unwanted oscillation.

Op amps as comparator

Op amps are frequently used as comparators.generally we use this. This is practical where high speed is not a requirement and where single supply operation is feasible. Note also that op amps and comparators have incompatible pin-outs and cannot easily be substituted.

Comparators as op amps

seldom are comparators used as op amps, but never say never. Here is an application note that shows how to make it work. The addition of the output capacitor slows the device so that it can operate without oscillation in the linear output voltage range. The only time this might be practical is when a low performance op amp function is required, but the only device available is one section of an IC 339 quad comparator.

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