| 摘要 |
An operational amplifier arrangement is disclosed which comprises a non-linear amplifier and a linear amplifier, both having a pair of input terminals one of which is coupled to an arrangement input terminal, and both having an output terminal which is coupled to an arrangement output terminal, whereby the output terminal of said non-linear amplifier is further coupled to the output terminal of said linear amplifier via a series impedance, whereby the output terminal of said linear amplifier is coupled to the arrangement output terminal via a terminating impedance, and whereby the arrangement further includes an active back termination arrangement coupled between the arrangement output terminal and either one of said pair of input terminals of said linear amplifier. In a preferred embodiment said linear amplifier is operating between a power supply which exceeds the supply voltage of the power supply of said non-linear amplifier. Differential embodiments of this basic configuration are also described.
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