Differential sense amplifier

Details Differential sense amplifier Differential sense amplifier

1995-12-22

1997-08-26

Nelms, David C.

Static information storage and retrieval

Floating gate

Particular biasing

3651852, 365207, 327 52, G11C 1134, G11C 702

Patent

active

056616848

ABSTRACT:
An improved differential sense amplifier for sensing differences in a parameter at a first locus coupled with a first signal source and a second locus coupled with a second signal source. The sensing is effected by a first sensing element coupled with the first locus and a second sensing element coupled with the second locus. The improvement comprises the first sensing element and the second sensing element having differing sensitivities. In the preferred embodiment of the invention, the sensing elements are field effect transistors, and the sensitivity is established by a threshold voltage characteristic. Preferably, the first signal source provides a dynamic signal to be measured and the second signal source provides a reference signal against which the dynamic signal's changes are compared.

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