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Noise simulation method and system for dynamic comparator

A technology of dynamic comparator and simulation method, applied in the field of noise simulation method and system of dynamic comparator, can solve the problem that the simulation method of static comparator cannot be applied, etc.

Active Publication Date: 2022-04-12
BEIJING SMARTCHIP MICROELECTRONICS TECH COMPANY +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the simulation of the dynamic comparator, the dynamic comparator is applied to the discrete time system, because the dynamic comparator is often controlled by the clock signal, it cannot be applied to the simulation method of the static comparator in the simulation

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  • Noise simulation method and system for dynamic comparator
  • Noise simulation method and system for dynamic comparator
  • Noise simulation method and system for dynamic comparator

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Embodiment Construction

[0018] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0019] Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.

[0020] The inventor has analyzed the prior art and found that the existing comparator noise simulation method is only aimed at the static comparator, only applicable to the continuous time system, and lacks applicability to the discrete time system, but the dynamic comparator has been widely used in In the design of the analog-to-digital converter, it is very necessary to study the noise simulation method for the dynamic co...

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Abstract

The invention discloses a noise simulation method and system of a dynamic comparator. The method comprises: connecting an offset voltage source between the positive input terminal and the negative input terminal of the dynamic comparator; It is set as the voltage difference between the voltage of the positive input terminal and the negative input terminal; the dynamic comparator is simulated multiple times, and the number of times the positive output terminal of the dynamic comparator outputs 0 is counted to obtain the output of the positive output terminal The probability value of 0; the noise energy value of the dynamic comparator is solved according to the Gaussian probability distribution function and the probability value of the positive output terminal outputting 0. The noise simulation method and system can simulate the noise of the dynamic comparator.

Description

technical field [0001] The invention relates to the field of analog-to-digital converter design, in particular to a noise simulation method and system of a dynamic comparator. Background technique [0002] In analog-to-digital converter design, noise simulation of comparators is more suitable for static comparators. In the static comparator simulation of a continuous-time system, a DC voltage source device is added to the two input terminals of the comparator. Through noise and DC simulation, the last stage of the comparator is used as the final output observation point to view the noise bandwidth. The value of the integral curve of the square of the input noise at is the equivalent input noise energy. However, in the simulation of the dynamic comparator, the dynamic comparator is applied to the discrete time system, because the dynamic comparator is often controlled by the clock signal, it cannot be applied to the simulation method of the static comparator in the simulatio...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G06F119/10
CPCG06F2119/10G06F30/20
Inventor 刘滢浩李德建于宝东杨小坤侯佳力王小曼唐晓柯胡毅
Owner BEIJING SMARTCHIP MICROELECTRONICS TECH COMPANY