Static information storage and retrieval – Read/write circuit – Differential sensing
Patent
1995-12-29
1997-06-17
Nelms, David C.
Static information storage and retrieval
Read/write circuit
Differential sensing
365205, 365208, 327 54, G11C 700
Patent
active
056403569
ABSTRACT:
An improved sense amplifier for receiving differential inputs and providing an output signal. A level shifting circuit for receiving differential inputs (IN and IN) is provided. A pre-amplification circuit that is coupled to the level shifting circuit provides gain to the differential outputs. A first inverter is coupled to the pre-amplification circuit and provides high voltage gain to the output signal. The first inverter includes a power port for receiving a power voltage signal and a ground port for receiving a ground signal. A second inverter that has a ground port and a power port is coupled to the pre-amplification circuit. The power port of the first and second inverters are coupled to the power voltage supply through a first transistor. Similarly, the ground port of the first and second inverters are coupled to the ground via a second transistor. The output of the second inverter is coupled to the gate of the first and second transistors and controls the first and second transistors.
REFERENCES:
patent: 4618785 (1986-10-01), van Tran
patent: 5231318 (1993-07-01), Reddy
Cypress Semiconductor Corp.
Nelms David C.
Niranjan F.
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