Question

Which type of integrated circuit is suitable for small quantity custom circuits?

(a) Monolithic IC

(b) Linear IC

(c) Hybrid IC

(d) Digital IC

This question was posed to me in an interview for job.

Question is taken from Integrated Circuit Package Type, Pin Configuration and Temperature Range in division Operational Amplifier Characteristics of Linear Integrated Circuits

Answer 1

The correct answer is:

(c) Hybrid IC

Explanation:

A Hybrid Integrated Circuit (IC) is the most suitable for small quantity custom circuits. This type of IC combines both monolithic ICs (which are fabricated on a single silicon chip) and discrete components (such as resistors, capacitors, and transistors) to form a customized circuit. Hybrid ICs are ideal for applications where small quantities of custom circuits are required because they allow the designer to mix different types of components to meet specific needs, making them more flexible than pure monolithic ICs.

Here's a breakdown of the other options:

• Monolithic IC: Typically produced in large quantities due to their cost efficiency, but may not be as flexible for custom designs in small quantities.
• Linear IC: Refers to a type of IC that operates with linear transfer characteristics (like amplifiers), but it doesn't specifically address custom circuit requirements.
• Digital IC: Refers to ICs used in digital applications (such as logic gates), but again, it's not focused on custom, small-quantity circuits.

Thus, Hybrid IC is the best option for small quantity custom circuits.