Low voltage data path and current sense amplifier

Details Low voltage data path and current sense amplifier Low voltage data path and current sense amplifier

2006-02-21

2008-12-16

Luu, Pho M. (Department: 2824)

Static information storage and retrieval

Read/write circuit

Differential sensing

C365S203000, C365S189160, C365S189170

Reexamination Certificate

active

07466615

ABSTRACT:
Methods, circuits, devices, and systems are provided, including a low voltage data path and current sense amplifier. One data path includes a local input/output (LIO) line and a global input/output (GIO) line each having first and second signal lines. A source follower circuit, coupled between the LIO line and the GIO line, includes first and second n-channel MOS (NMOS) transistors having a drain coupled to the first and the second signal lines of the GIO and a gate coupled to the first and the second signal lines of the LIO. A third NMOS transistor has a source coupled to the source of the first and the second NMOS transistors, a gate coupled to a reference voltage supply and a drain coupled to a drain of a fourth NMOS transistor. The fourth NMOS has a gate to which a selection signal is applied and a source coupled to a ground.

REFERENCES:
patent: 6944066 (2005-09-01), Jing
patent: 7061817 (2006-06-01), Raad et al.
patent: 2005/0018511 (2005-01-01), Lee

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