Domino asynchronous successive approximation ADC

Details Domino asynchronous successive approximation ADC Domino asynchronous successive approximation ADC

2006-08-29

2006-08-29

Nguyen, Linh Van (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

C341S120000

Reexamination Certificate

active

07098840

ABSTRACT:
The domino asynchronous successive approximation (ASA) analog-to-digital converter (ADC) converts an analog signal to an n-bits digital signal. The domino ASA ADC is made out of n-blocks, corresponding to the number of n-bits of the digital output. Each of these n-blocks generates a conversion bit and calibrates all following blocks, comparable to a domino structure. One key advantage of the domino ASA ADC is its modular structure; each block is independent from all others. The unity capacitors used need to be matched only within their specific blocks. The architecture is very flexible; it is possible to increase the resolution by adding more blocks of the same kind. The ASA ADC is very fast, its speed is only limited the RC constants during the sampling and measurement phase and the speed of the comparators used.

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