CHAPTER 7 Sampling Gates


An ideal sampling gate is basically a transmission circuit in which the output is an exact reproduction of an input waveform during a selected time interval and is zero otherwise. These gates are also referred to as transmission gates or as time-selection circuit. To get the exact replica of the input at the output of sampling gate during the selected time it is necessary that the input signal does not suffer any distortion or attenuation during transmission. In sampling gates the time interval for transmission is selected by an externally applied signal known as gating signal. The gating signal is usually rectangular in shape.

Sampling gates may be broadly classified as unidirectional sampling gates ...

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