Author_Institution :
228 Outer Drive, Oak Ridge, TN, USA
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
Keywords :
application specific integrated circuits; bipolar analogue integrated circuits; integrated circuit noise; pulse shaping circuits; ASIC; BPS filter; UPS filter; amplifier array; baseline line restorer; bipolar pulse shaping; coincidence measurement; integrated circuit; pole-zero cancellation; resolving time; signal loss; signal-to-noise ratio; time constant; time marker; Degradation; Filters; Integrated circuit measurements; Pulse measurements; Pulse shaping methods; Signal resolution; Signal restoration; Signal to noise ratio; Time measurement; Uninterruptible power systems;
