Analog-to-digital converter

Details Analog-to-digital converter Analog-to-digital converter

2008-06-25

2009-11-10

Jeanglaude, Jean B (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

C341S155000, C341S167000, C341S164000

Reexamination Certificate

active

07616147

ABSTRACT:
An analog-to-digital converter (ADC) is presented. The ADC includes an error amplifier, a ramp generator, and a counting circuit. The error amplifier is used for receiving an output voltage and a reference voltage, and amplifying a difference between the output voltage and the reference voltage, so as to obtain a first voltage and a second voltage. The ramp generator is used for generating a ramp voltage which is increased along with time. The counting circuit is used for starting counting a digital value when the ramp voltage is larger than or equal to the first voltage, and stopping counting and outputting the digital value when the ramp voltage is larger than or equal to the second voltage.

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