Active loaded mos differential amplifier — Free Electronics Illustration

Electronics

Active loaded mos differential amplifier

Compact symmetric transistor-level CMOS differential amplifier schematic. Two matched n-channel MOSFETs form the differential input pair at the bottom center, with their gates as the two inputs and their sources joined to a common tail connection or tail current source below. Above them, two p-channel MOSFETs form an active current-mirror load, arranged symmetrically with mirrored top devices and drain connections meeting the lower pair. A single-ended output node is taken from one side. Use standard MOSFET symbols with clearly shown gates, drains, sources, and connection lines, with no surrounding circuit.

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