The availability of Op-amps can be confined in _____.

The availability of Op-amps can be confined in _____.

a. Standard dual-in-line package (DIL)
b. TO-5 case
c. Flat-pack
d. All of the above

Correct Answer : d. All of the above

Explanation :

Designing of Op-amps is very crucial aspect since they need to be designed in such a way that external components should be connected to terminals so as to diverge or vary the external characteristics of Op-amps.
According to the technique of standard dual-in-line package, the ICs of Op-amp are sealed hermetically along with the two-sided packaging. Also, TO-5 case is well-known for 'Transistor Outline' and is concerned to a series of technical specifications. TO-5 type of packages belong to the header family metal case with the pitch of about 0.20'' Dia 90° .
Flat pack category of packaging mainly deals with PCB surface mount component packaging in the form of glass, metal or ceramics & hence provide greater defence to hermetic seals in order to prevent them from corrosion and moisture. Flat-pack type of packages are lighter and smaller as compared to the conventional round types of TO-5 cases.
All the three types mentioned above are highly confined for packaging dealt with Op-amps.