Coded data generation or conversion – Analog to or from digital conversion – Digital to analog conversion
Reexamination Certificate
2006-07-06
2008-10-28
Jeanglaude, Jean B (Department: 2819)
Coded data generation or conversion
Analog to or from digital conversion
Digital to analog conversion
C341S144000
Reexamination Certificate
active
07443329
ABSTRACT:
A digital to analog converter (DAC) comprises X capacitive DACs that are connected together in series, wherein X is an integer greater than one. Each of the X capacitive DACs comprise M switches wherein M is an integer greater than one; a signal input; a signal output; and M capacitances that communicate with the M switches, respectively, and that have first and second ends and substantially equal capacitance values. The M switches selectively connect the first ends of the M capacitances to the signal output. The M switches connect the second end of a selected one of the M capacitances to the signal input. A first DAC has a signal output that communicates with the signal input of one of the X capacitive DACs.
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Jeanglaude Jean B
Marvell World Trade Ltd.
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