Abstract
Compared with unipolar pulse shaping (UPS), bipolar shaping (BPS) degrades the signal-to-noise ratio (SNR) and resolving time, but is insensitive to misadjusted or missing pole-zero cancellation, doesn't require a baseline line restorer, and furnishes an amplitude-invariant time marker for coincidence measurements. The last three features are useful in amplifier arrays for integrated circuits (ASICs). With ASICs in mind, BPS and UPS filters are compared for noise performance, resolving time, signal loss, and other facets of interest to amplifier designers. For example, it is shown that an optimum selection of a fixed number of time constants (TCs) in an amplifier stage can reduce filter loss to less than half that obtained with all TCs alike, and, except for slightly better resolving time, it isn't beneficial to use more than two integrators.
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