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What is the minimum number of pins for a dual operational amplifier IC package?

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What is the minimum number of pins for a dual operational amplifier IC package?

(a) 4

(b) 6

(c) 8

(d) 10

The question was asked in an international level competition.

My query is from The Ideal Operational Amplifiers in section Operational Amplifiers of Electronic Devices & Circuits

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The correct answer is (c) 8

The explanation: The minimum no of pins required by dual-op-amp is 8. Each op-amp has 2 input terminals(4 pins) and one output terminal(2 pins). Another 2 pins are required for power.

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