Types of Opamps and applications

Hello Guys

I am into deep research study into Operational amplifier and its Type.

I seen many of the Opamp while selection on the Digikey it shows.
1.Instrumentation Amplifier
2. Rail to rail Amplifier
3. Open drain Opamp
4 zero drift opamp.

What does it means and what is classification of this.

Where i will get the detailed Opamp explanationand its type.

Regards
Marx

instrumentation amplifier is a type of differential amplifier that has been outfitted with input buffer amplifiers, which eliminate the need for input impedance matching and thus make the amplifier particularly suitable for use in measurement and test equipment.

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rail-to-rail op amps enable you to operate at lower supply voltages, swing closer to the rails, and provide wider dynamic range.

If you connect an input source to one of the input terminals and ground the other input terminal, an amplified version of the input signal appears on the out terminal- open loop amplifier or
If you simply apply an input signal to the V–– terminal of an op amp, the circuit is called an open loop amplifier.

Zero-drift amplifiers dynamically correct their offset voltage and reshape their noise density. Two commonly used types—auto-zero amplifiers and choppers—achieve nano volt-level offsets and extremely low offset drifts due to time and temperature.