SNEL VERSTERKING DOORLOPEND VERSTERKERSYSTEEM MET GROOT DYNAMISCH BEREIK EN ZWAAISNELHEID-BE- STURING.

摘要

A wide dynamic range automatic high speed digital gain ranging amplifier system and a plurality of amplifier stages coupled in cascade circuit relationship. The respective outputs of the amplifier stages are coupled through a common output circuit to a comparator circuit for comparison with a predetermined reference signal. Sequence means in cooperation with a slew rate control circuit are provided for momentarily closing switch means for time sequentially coupling respective output of successive amplifier stages in comparator circuit during successive relatively brief sampling time intervals. Means is provided for selectively maintaining one of the switches in its closed position the holding time interval of longer duration than the sampling time intervals or an output signal coupled through the switch means to the common output circuit during one of the sampling intervals being a predetermined relationship to the reference signal in a preferred embodiment of the slew rate control circuit prevents the selection of the switch means so that the change in the common output signal does not exceed either a predetermined slew rate or signal change or a predetermined full scale value.