Digital-to-analog conversion circuit and column driver...

Details Digital-to-analog conversion circuit and column driver... Digital-to-analog conversion circuit and column driver...

2011-05-24

2011-05-24

Jeanglaude, Jean B (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

C345S089000

Reexamination Certificate

active

07948418

ABSTRACT:
A digital-to-analog conversion circuit includes a digital-to-analog converter and a buffer amplifier. The digital-to-analog converter receives upper bits of digital data and a plurality of analog voltages and is configured to output two adjacent analog voltages of the plurality of analog voltages based on the upper bits. The buffer amplifier includes two input terminals. One of the input terminals receives one of the two adjacent analog voltages and the other input terminal receives the other adjacent analog voltage. The buffer amplifier is configured to generate a current offset by controlling a current flowing into each of the two input terminals based on lower bits of the digital bits.

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patent: 1020070004001 (2007-01-01), None

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