Devices and methods for converting a digital signal into an...

Details Devices and methods for converting a digital signal into an... Devices and methods for converting a digital signal into an...

2006-07-25

2006-07-25

Jeanglaude, Jean Bruner (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

C341S135000, C341S136000

Reexamination Certificate

active

07081844

ABSTRACT:
There is provided a digital to an analog converter (DAC) comprising a current source, a first logic circuit, wherein the first logic circuit receives a first switching signal and a low-power mode signal, a first switch controlled by the first logic circuit, wherein the first switch selectively couples the current source to a ground in response to a signal from the first logic circuit, and a second switch controlled by a second switching signal, wherein the second switch selectively couples the current source to a load in response to the second switching signal. The first switching signal and the second switching signal may be complementary and are based on a digital signal that is being converted into an analog signal. The low-power mode signal is provided to selectively switch the DAC into a lower power consumption mode.

REFERENCES:
patent: 5600321 (1997-02-01), Wincn
patent: 5654710 (1997-08-01), Oh et al.
patent: 5909187 (1999-06-01), Ahuja
patent: 6329940 (2001-12-01), Dedic
patent: 6727835 (2004-04-01), Blankenship et al.
patent: 6888482 (2005-05-01), Hertle

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