Digital-to-analog converter

Details Digital-to-analog converter Digital-to-analog converter

2006-06-27

2006-06-27

Young, Brian (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

C341S145000

Reexamination Certificate

active

07068201

ABSTRACT:
A digital-to-analog converter (DAC) is disclosed, which provides different bias voltages to the most significant bits (MSBs) and the least significant bits (LSBs) of the digital signal. These two bias voltages can be adjusted according to the match among the current source cells, and maintain a particular proportional relationship. The DAC further includes a bias converter for receiving the first bias voltage, and adjusting the second bias voltage according to the match among the current source cells.

REFERENCES:
patent: 5568145 (1996-10-01), Reynolds
patent: 6265857 (2001-07-01), Demsky et al.
patent: 6633248 (2003-10-01), Song
patent: 6650265 (2003-11-01), Bugeja
patent: 6738006 (2004-05-01), Mercer et al.
patent: 6844835 (2005-01-01), Kao

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