Current-mode preamplifiers

Details Current-mode preamplifiers Current-mode preamplifiers

2006-02-07

2006-02-07

Choe, Henry (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including atomic particle or radiant energy impinging on a...

C330S288000

Reexamination Certificate

active

06995615

ABSTRACT:
Current-mode preamplifiers are provided. In accordance with an embodiment, a current-mode preamplifier includes a transistor, that acts as an input stage for the preamplifier, and a pair of current mirrors. The transistor includes a gate connected to the input of the preamplifier, a source connected to a first voltage supply rail, and a drain. The first current mirror, which is connected to a second voltage supply rail, includes an input connected to the drain of the first transistor, and an output. The second current mirror, which is connected to the first voltage supply rail, includes an input connected to the output of the first current mirror, a first output connected to the input of the preamplifier, and a second output connected to the output of the preamplifier.

REFERENCES:
patent: 4994758 (1991-02-01), Welty
patent: 5307023 (1994-04-01), Schade, Jr.
Gerben W. de Jong, et al., “A DC-to-250MHz Current Pre-Amplifier with Integrated Photo-Diodes in Standard CBiMOS, for Optical-Storage systems”, 2002 IEEE International Solid-State Circuits Conference, pp:362-363, 474.

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