| 摘要 |
A current-mode amplifier is connected in series with a current source which turns the amplifier on or off in response to signal voltages connected to the current source. The current-mode amplifier samples signals from a source of signals only when the amplifier is turned on. Diodes, connected between a source of signal voltages and the current source, store electrical charges which aid the current source in providing fast turn on and fast turn off so that a high rate of sampling is possible.
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