Patent
Two stage analoge-to-digital converter having unique fine encoding circuitry
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TLDR
In this paper, the output of an analog to digital converter is divided into most significant bits and least significant bits, and the digital codes that form the most significant bit and the least significant bit are corrected in an output encoder to form the digital output word.Abstract:
An analog to digital converter for the conversion of an analog input signal to a digital output code of n bits has a plurality of voltage references created in a voltage reference generator that divides the total range of voltage of the conversion input into increments of voltage equal to the smallest increment of resolution. The n bits of digital output are divided into most significant bits and least significant bits. The most significant bits are encoded from a set of digital signals that are formed in a set of coarse comparators, that compare the analog input signal with a subset of the voltage references representing the coarse range. The digital code that is the output of the coarse comparators is used to determine the selection of the subset of the plurality of the voltage references that are the fine voltage references. The least significant bits are encoded from a set of digital signals that are formed in a set of fine comparators that compare the analog input signal to the fine voltage references. The digital codes that form the most significant bits and the least significant bits are corrected encoded in an output encoder to form the digital output word.read more
Citations
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References
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Patent
Analog-to-digital converter and method of fabrication
Glenn A. DeJong,Akira Ito,Choong-Sun Rhee,Jeffrey Johnston,Michael D. Church,Kantilal Bacrania +5 more
TL;DR: In this article, a two-step analog-to-digital converter (300) and BiCMOS fabrication method was used to make the converter, which provided pseudosubstrate isolation of digital CMOS devices from analog devices.
Patent
Subranging analog to digital converter
TL;DR: In this article, a subranging analog-to-digital converter with a range selection input and a range indication output terminal was proposed. But the output of the subranging converter was not specified.
Patent
Analog to digital converter with double folding interpolation circuitry
TL;DR: In this paper, an analog to digital converter (ADC) is disclosed having a coarse converter to generate the most significant bits of the output and double folding interpolation circuitry to produce the least significant bits.
Patent
Averaging flash analog-to-digital converter
TL;DR: In this article, a flash-type analog-to-digital converter (ADC) uses only two comparators (114h, 114i, 114j...) coupled to the analog input line to generate a n-bit digital output signal.
Patent
Analog-to-digital converter
TL;DR: In this paper, an analog-to-digital converter for converting an analog input voltage signal to a digital output voltage signal of m upper bits and n lower bits is presented, which has a plurality of resistors connected in a series circuit to a voltage source for establishing respective reference voltages.