Sense amplifier and method for small bit line swing with short p

Details Sense amplifier and method for small bit line swing with short p Sense amplifier and method for small bit line swing with short p

1980-02-11

1982-10-19

Davie, James W.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

H03K 518

Patent

active

043552471

ABSTRACT:
A circuit for producing a signal of one type in the absence of a semiconductor at an addressed memory location and a signal of another type in the presence of the semiconductor includes a constant voltage reference source to supply a variable current to a pull up FET. The pull up FET is connected to be in series with the memory semiconductor when it is present in the circuit, and operates to supply a low level voltage to an output amplifier when the semiconductor is present and a high level voltage when the semiconductor is not present. The low level voltage is centered about the trigger point of the amplifier, so that the bit line swing from the memory semiconductor produces a full MOS output from the amplifier.

REFERENCES:
patent: 3993917 (1976-11-01), Kalter
patent: 4003034 (1977-01-01), Au
patent: 4114055 (1978-09-01), Hollingsworth
patent: 4179626 (1979-12-01), Oehler
patent: 4287570 (1981-09-01), Stark

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