Active cascode sense amplifier

Details Active cascode sense amplifier Active cascode sense amplifier

1993-01-05

1994-03-22

LaRoche, Eugene R.

Static information storage and retrieval

Read/write circuit

Differential sensing

307530, G11C 11409

Patent

active

052970930

ABSTRACT:
An improved sense amplifier for a computer having non-volatile memories, each non-volatile memory having an array of memory cells, each cell having a drain, and the drains of all the cells for one column of cells connected to a drain-column line, The sense amplifier reads the state of the memory cell by a) sensing a reference current; b) providing drain-column voltage swings during the reference current sensing; c) sensing the current on the drain-column line; d) producing voltages above and below a reference voltage whereas the produced voltages represent the state of the memory cell; and, e) adjusting the bias of the biasing transistors in response to the produced voltages.

REFERENCES:
patent: 5012448 (1991-04-01), Matsuoka et al.
patent: 5029138 (1991-07-01), Iwashita
patent: 5056063 (1991-10-01), Santin et al.
patent: 5117124 (1992-05-01), Dicke
patent: 5189322 (1993-02-01), Chan et al.

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