Sense amplifier with limited output voltage swing

Details Sense amplifier with limited output voltage swing Sense amplifier with limited output voltage swing

1994-05-18

1996-06-11

Tran, Toan

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

327309, G01R 1900

Patent

active

055259197

ABSTRACT:
A sense amplifier circuit having a pair of complementary inputs and a pair of complementary outputs with voltage swing limiter and cross-coupled feedback to tail devices. The sense amplifier circuit comprises first differential amplifier for receiving the pair of complementary inputs to generate first output of the pair of complementary outputs. The first differential amplifier is coupled to a first current source device for biasing. The circuit also comprises second differential amplifier for receiving the pair of complementary inputs to generate second output of the pair of complementary outputs. The second differential amplifier is coupled to a second current source device for biasing. A voltage swing limiter is coupled to the pair of complementary outputs of the first and second differential amplifiers for limiting the voltage swing of the pair of complementary outputs. A feedback circuit is coupled to feed the outputs back to drive the other tail device.

REFERENCES:
patent: 4785427 (1988-11-01), Young
patent: 4991141 (1991-02-01), Tran
patent: 5023841 (1991-06-01), Akrout et al.
patent: 5065055 (1991-11-01), Reed
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patent: 5132574 (1992-07-01), Yumoto
patent: 5155397 (1992-10-01), Fassino et al.
patent: 5160861 (1992-11-01), Lee
patent: 5272395 (1993-12-01), Vincelette
patent: 5274275 (1993-12-01), Colles
patent: 5276369 (1994-01-01), Hayakawa et al.

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