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发表于 2011-3-12 18:17:37
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大家好,套筒式结构运放为什么很难使输入和输出短接,谢谢!
chenshengsheng 发表于 2011-3-12 17:18
Generally, telescopic opamp Input CM range is too small to cover telescopic opamp Output Signal range (including CM+DM components)。Once output signal range exceed telescopic opamp Input CM range,the performance (eg. gain/bandwith) of telescopic opamp will degrade.
However, in case that the input signal is a DC voltage level and within the Input CM range of telescopic opamp, the input and output terminals of telescopic opamp can be connected directlty to configure a non-inverting gain (=1) amplifier/buffer. |
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