Detecting amplifier with current mirror structure

Static information storage and retrieval – Read/write circuit – Differential sensing

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Details

365210, 365206, 36518901, G11C 702

Patent

active

053696140

ABSTRACT:
A detecting amplifier has a first transistor arranged between a first positive power source and a semiconductor memory and connected in series to the first positive power source and having a low turning-on resistance value; a second transistor arranged between the first transistor and the semiconductor memory and connected in series to the first transistor and connected to a negative feedback circuit having an inverting element; and a third transistor arranged between a second positive power source and an output section of the detecting amplifier and connected in series to the second positive power source and constituting a current mirror structure together with the first transistor. In accordance with this detecting amplifier, an access time to a memory transistor is maintained in a short state and a detecting operation of the detecting amplifier is reliably performed.

REFERENCES:
patent: 5022003 (1991-06-01), Kohno
patent: 5029138 (1991-07-01), Iwashita
patent: 5056063 (1991-10-01), Santin et al.
patent: 5267207 (1993-11-01), Jinbo

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