Unclocked sense ampllifier

Details Unclocked sense ampllifier Unclocked sense ampllifier

1975-05-21

1976-11-16

Heyman, John S.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307235J, 307238, 307DIG3, H03K 520, G11C 1140, G11C 706

Patent

active

039926370

ABSTRACT:
This specification describes a differential sense amplifier serving balanced sense lines. An imbalance in bias potential on the sense lines holds the sense amplifier in an insensitive state until just before data is to be read on the sense lines. Then a shunting device connected across the sense lines and across the inputs to the differential amplifier is activated to reduce the imbalance and thereby sensitize the differential amplifier. This shunting device is controlled by a feedback path that senses the biasing condition and shuts off the shunting device when the amplifier is in condition to perform the Read cycle.

REFERENCES:
patent: 3678473 (1972-07-01), Wahlstrom
patent: 3774176 (1973-11-01), Stein et al.
patent: 3838404 (1974-09-01), Heeren
patent: 3858060 (1974-12-01), Kenyon
patent: 3882326 (1975-05-01), Kruggel
patent: 3892984 (1975-07-01), Stein
ayling, "Differential Signal Phase Sensing and Latching Detector," IBM Tech. Dicl. Bull.; vol. 14, No. 6, p. 1674; 11/1971.

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