Miscellaneous active electrical nonlinear devices – circuits – and – Specific signal discriminating without subsequent control – By amplitude
Patent
1994-09-08
1996-10-15
Tran, Toan
Miscellaneous active electrical nonlinear devices, circuits, and
Specific signal discriminating without subsequent control
By amplitude
327 74, 327205, H03K 5153, H03K 312
Patent
active
055658024
ABSTRACT:
A semiconductor device includes a differential amplifier and a first and a second pull-up transistor for generating a reference voltage. The second pull-up transistor has a gate connected to an output terminal of the differential amplifier. The differential amplifier is such that, when an output voltage thereof previously outputted is at a high level, both the first and second pull-up transistors become conductive so that the reference voltage becomes equilibrium at a high level voltage, and when an output voltage previously outputted is at a low level, the first pull-up transistor becomes conductive and the second pull-up transistor becomes non conductive so that the reference voltage becomes equilibrium at a low level voltage. With this arrangement, a high speed operation of the differential amplifier is realized.
REFERENCES:
patent: 3569739 (1971-03-01), Stolman
patent: 4581545 (1986-04-01), Beale et al.
patent: 4926068 (1990-05-01), Fujita
patent: 5319265 (1994-06-01), Lim
NEC Corporation
Tran Toan
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