| Open-loop Gain |
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Information AboutOpen-loop Gain |
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Open loop gain is usually exceedingly high; in fact, an ideal operational amplifier has infinite open-loop gain. Typically an op-amp may have an open-loop gain of around . Normally, feedback is applied around the op-amp so that the gain of the overall Circuit is defined and kept to a figure which is more usable. However the very high gain of the op-amp enables considerable levels of feedback to be applied to achieve required performance. The open-loop gain of an operational amplifier falls very rapidly with increasing Frequency . Along with Slew Rate , this is one of the reasons why operational amplifiers have limited Bandwidth . |
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