Abstract:A new twice-comparison instantaneous floating一point amplifier with sign bit is recommended in this paper, This amplifier only consists of four amplification stages, the first stage being far 48dB amplification,and the second, third and fourth for 12dB respectively.This amplifier first determines whether the output potential of the first amplification stage is above 8V,then simultaneously judges if the potential of each input of the second, third and fourth stage is above 2V,The judgments decide which stage should be switched on or off, Only two times of judgment (comparison) are needed altogether, Its time for amplifying one signal sample is only half the .time of three time-gain一regulation amplifier.
收稿日期: 1984-12-17
引用本文:
王本吉. 带有符号位的二次比较型瞬时浮点放大器[J]. 石油地球物理勘探, 1985, 20(5): 512-519.
Wang Benji. Twice一comparison instantaneous floating一point amplifier with sign bit. OGP, 1985, 20(5): 512-519.