Measuring and correcting non-linearity of an internal...

Details Measuring and correcting non-linearity of an internal... Measuring and correcting non-linearity of an internal...

2008-01-15

2008-01-15

Mai, Lam T. (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

C341S155000

Reexamination Certificate

active

07319424

ABSTRACT:
An internal ADC in a delta-sigma ADC is characterized using inherent delta-sigma ADC circuitry. In one embodiment, a constant DC value is applied as the input signal. The sum of the constant DC value and a feedback signal is integrated. Then, a digital approximation including the integrated sum is generated. The feedback signal is generated and allows ramping of the integrated sum.

REFERENCES:
patent: 5068657 (1991-11-01), Tsai
patent: 6992606 (2006-01-01), Zogakis et al.

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