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Noise-Shaping Analog-to-Digital Converter

An analog-to-digital converter and noise shaping technology, applied in the direction of physical parameter compensation/prevention, energy saving methods, etc., can solve the problem of high power consumption of ADC, and achieve the effect of improving energy efficiency, ensuring accuracy, and reducing power consumption

Active Publication Date: 2022-03-01
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of the above-mentioned shortcoming of the prior art, the object of the present invention is to provide a noise shaping analog-to-digital converter, which is used to solve the technical problem that the Delta-sigma ADC power consumption is too high in the prior art

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Embodiment Construction

[0034] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. For example, when describing the embodiments of the present invention in detail, for the convenience of explanation, the cross-sectional view showing the device structure will not be partially enlarged according to the general scale, and the schematic diagram is only an example, which should not limit the protection scope of the present invention. In addition, the three-dimensional space dimensions of length, width and depth should be in...

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Abstract

The present invention provides a noise-shaping analog-to-digital converter, the noise-shaping analog-to-digital converter includes an integrator based on an open-loop source follower; a quantizer, the input of the quantizer is connected to the output of the integrator terminal coupling; digital-to-analog conversion feedback circuit, the output terminal of the quantizer is coupled to the input terminal of the integrator through the digital-to-analog conversion feedback circuit; wherein, the input terminal of the integrator receives an analog input signal, and the The output of the quantizer outputs a stream of digital output samples. The noise shaping analog-to-digital converter of the present invention reduces power consumption and improves energy efficiency while realizing high-precision conversion.

Description

technical field [0001] The invention belongs to the technical field of integrated circuit design, in particular to a noise shaping analog-to-digital converter. Background technique [0002] Noise-shaping analog-to-digital converters play a very important role in signal processing. A large number of data converters are required in fields such as audio and video. With the continuous development of technology, the size and bias voltage of integrated circuits continue to decrease, and the precision and dynamic range of analog devices also continue to decrease, realizing high-resolution noise-shaping analog-to-digital converters (analogue-to-digital converters, referred to as ADCs) ) is getting harder. The Delta-sigma ADC is widely used in high-precision fields because it does not need to use a sample-and-hold circuit, the circuit scale is small, and it can achieve high resolution. [0003] Since the Delta-sigma modulation technology was born in the 1960s, after years of resea...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03M1/08
CPCH03M1/08H03M1/002
Inventor 钱超超邱雷
Owner TONGJI UNIV
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