The earliest IC op amp OUTPUT stages were NPN emitter followers with NPN current sources or resistive pull-downs, as shown in Figure 1.6.
最初的集成运算放大器的输出级是NPN电流源的NPN放射追随器或通过电阻下拉，如图1.6所示。
The earliest IC op amp OUTPUT stages were NPN emitter followers with NPN current sources or resistive pull-downs, as shown in Figure 1.6.
最初的集成运算放大器的输出级是NPN电流源的NPN放射追随器或通过电阻下拉，如图1.6所示。
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