2007-09-27 04:46:13 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Engineering
An operational amplifier (op-amp) certainly has much much larger amplification and the output can easily saturate without negative feedback. Op-amp's are rigorously designed multi transistor circuits with careful control over biasing of transistors involved while a CE amplifier would easily go into saturation/triode or cut-off regions if you try to tweak the gain too much.
2007-09-27 04:55:45 · answer #1 · answered by Saurabh T 2 · 0⤊ 0⤋
For voltage amplification, an Op-Amp has an open loop gain on the order of 100,000:1, while the most you can get out of a single CE stage is, maybe, 100:1.
In a closed loop configuration, and Op-Amp can provide the same 100:1 gain as a 'maxed out' CE stage, yet have superior frequency and phase characteristics.
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2007-09-27 05:03:47 · answer #2 · answered by tlbs101 7 · 0⤊ 0⤋