Sense amplifier circuit

Details Sense amplifier circuit Sense amplifier circuit

1998-12-09

2000-11-14

Tran, Toan

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

327 57, G11C 706

Patent

active

061475149

ABSTRACT:
This invention provides a sense amplifier circuit capable of determining an output with small power consumption at high speeds and simplifying a control signal. The sources of a pair of driver nMOS transistors in a first amplifier are connected to VSS via an activation nMOS transistor. An output from the first amplifier is directly input to input/output nodes of a second, latch amplifier. The sources of a pair of nMOS transistors in the second amplifier are connected to VSS via an activation nMOS transistor. The input/output nodes are precharged to VCC by a precharge circuit in a standby state. The activation nMOS transistors are simultaneously controlled by a clock signal, and the first and second amplifiers are simultaneously activated to sense, amplify, and latch the potential difference between input/output nodes.

REFERENCES:
patent: 4697112 (1987-09-01), Ohtani et al.
patent: 5355391 (1994-10-01), Horowitz et al.
patent: 5465060 (1995-11-01), Pelella
patent: 5526314 (1996-06-01), Kumar
patent: 5726942 (1998-03-01), Yoneda et al.
patent: 5854562 (1998-12-01), Toyoshima et al.

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