Miscellaneous active electrical nonlinear devices – circuits – and – Specific signal discriminating without subsequent control – By amplitude
Patent
1998-06-16
2000-05-16
Wells, Kenneth B.
Miscellaneous active electrical nonlinear devices, circuits, and
Specific signal discriminating without subsequent control
By amplitude
327 78, 327 91, 327215, H03K 522
Patent
active
060642394
ABSTRACT:
A differential input chopper-type voltage comparator for comparing an input voltage signal and a reference voltage signal and outputting a comparison result is provided. The voltage comparator contains an input voltage terminal, a reference voltage terminal, and a comparing circuit. The input voltage terminal inputs the input voltage signal, and the reference voltage terminal inputs the reference voltage signal. The comparing circuit is coupled to the input voltage terminal and the reference voltage terminal, and simultaneously inputs the input voltage signal and the reference voltage signal. Also, the comparing circuit simultaneously processes the input voltage signal and the reference signal, outputs a first predetermined voltage signal as the comparison result if the input voltage signal is greater than the reference voltage signal, and outputs a second predetermined voltage signal as the comparison result if the input voltage signal is less than the reference voltage signal. Also a method performed by the apparatus is also provided.
REFERENCES:
patent: 5329187 (1994-07-01), Crispie et al.
patent: 5821780 (1998-10-01), Hasegawa
patent: 5869987 (1999-02-01), Tang
Noriyuki Fukushima et al., "A CMOS 40MHz 8b 105mW Two-Step ADC", 1989 IEEE International Solid-State Circuits Conference, Feb. 15, 1989, pp. 14-15.
Luu An T.
NEC Corporation
Wells Kenneth B.
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