Single ended controlled current source

Details Single ended controlled current source Single ended controlled current source

2005-05-10

2005-05-10

Ton, My-Trang Nu (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

Reexamination Certificate

active

06891428

ABSTRACT:
An apparatus and method for a controlled current source are provided. The apparatus may include at least one current cell. Each current cell includes first, second and third transistors. The first transistor can be configured as a switch transistor. The second transistor can be configured as a current controller and can be coupled in series with the first transistor. The third transistor has a gate and a substrate coupled to a gate and a substrate of the second transistor, respectively. The drain and source of the third transistor can be coupled to a second input configured to receive a second signal that is a compliment of a first signal received at an input of the first transistor.

REFERENCES:
patent: 5610505 (1997-03-01), Bernardson et al.
patent: 6194956 (2001-02-01), Barnes
patent: 6556070 (2003-04-01), Paulus
patent: 6583740 (2003-06-01), Schofield et al.

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