Bipolar op amp circuit — Free Electronics Illustration

Electronics

Bipolar op amp circuit

Schematic-style transistor-level bipolar operational amplifier circuit drawn as clean black line art on a white background. The circuit uses multiple NPN and PNP bipolar junction transistor symbols arranged in cascaded stages from left input to right output, including an input differential pair, a current-mirror active load, a common-emitter voltage-gain stage, and an emitter-follower output transistor. Standard analog schematic symbols are used, with associated resistors and a few capacitors, including a compensation capacitor connected between internal high-gain nodes. The overall layout is compact and clearly recognizable as a multistage BJT op-amp topology.

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