Switched-current memory

Details Switched-current memory Switched-current memory

1998-09-29

2000-10-17

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

327 96, H03K 5153

Patent

active

06133765&

ABSTRACT:
A switched current memory circuit has an input to which an input current (i) is applied and which is connected via a switch (S1) to the drain electrode of a memory transistor (M). A second switch (S3) is connected between the memory circuit input and the source electrode of a grounded gate transistor (G) whose drain electrode is connected to the gate electrode of the memory transistor (M). The drain electrode of the memory transistor (M) is connected via switch (S2) to an output at which an output current (i.sub.o) is produced.
The second switch (S3) provides zero-voltage switching which reduces the effects of charge injection on the current stored.

REFERENCES:
patent: 5179301 (1993-01-01), Hughes
patent: 5349245 (1994-09-01), Hughes et al.
patent: 5400273 (1995-03-01), Hughes et al.
patent: 5666303 (1997-09-01), Hughes et al.
patent: 5714894 (1998-02-01), Redman-White et al.
patent: 5783952 (1998-07-01), Kazazian
"A Low-Voltage Switched-Current Delta-Sigma Modulator", Nianxiong Tan et al, IEEE J. of Solid State Circuits, vol. 30, No. 5, May 1995, pp. 599-603.
"Switched-Current Signal Processing for Video Frequencies and Beyond", John B. Hughes et al, IEEE J. of Solid-State Circuits, vol. 28, No. 3, Mar. 1993, pp. 314-322.

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