Shared parallel digital-to-analog conversion

Details Shared parallel digital-to-analog conversion Shared parallel digital-to-analog conversion

2006-04-04

2006-04-04

Jeanglaude, Jean Bruner (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

C341S164000

Reexamination Certificate

active

07023370

ABSTRACT:
A digital-to-analog converter in which a counter tracks the elapsed time since the beginning of a conversion cycle. Simultaneously, a reference analog signal such as a voltage ramp is generated. When the count reaches a stored digital number value, a sample-and-hold circuit is triggered and acquires the value of the reference analog signal. Multiple stored digital number values can be converted using multiple sample-and-hold and trigger circuits which share the counter and the reference analog signal. Such parallel digital-to-analog conversion is useful in many applications such as digital communications, image display, and shared parallel analog-to-digital conversion.

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