OCD driver slew rate control

Details OCD driver slew rate control OCD driver slew rate control

2009-03-30

2010-06-15

Tan, Vibol (Department: 2819)

Electronic digital logic circuitry

Interface

Current driving

C326S087000

Reexamination Certificate

active

07737728

ABSTRACT:
An off-chip driver (OCD) includes: a logic circuit, for providing a logic signal input; a pre-driver stage, coupled to the logic circuit, for providing a ramped up voltage in response to the logic signal input; a final driver stage, coupled to the pre-driver stage, for providing an output voltage in response to the ramped up voltage; and a bias circuit, coupled to the pre-driver stage, for providing a constant bias voltage to the pre-driver stage, wherein the constant bias voltage keeps the pre-driver stage within an operational range to compensate for variations in process, temperature and supply voltage.

REFERENCES:
patent: 2009/0002031 (2009-01-01), Choi et al.

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