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MCQ Practice Question

Electronic Devices & Circuits Current Mirrors

A current mirror is commonly used in integrated analog circuits primarily to?

AReplicate or establish bias currents
BGenerate optical isolation
CPerform rectification only
DStore digital data permanently

Correct Answer: A. Replicate or establish bias currents

Explanation: Matched transistors arranged as a current mirror provide approximately replicated reference currents and are widely used for IC biasing and active loads.

Reference: Standard analog electronics: current mirror

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