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Dynamic comparator, electronic equipment and implementation method thereof

A technology of dynamic comparators and comparison components, which is applied in the direction of instruments, electrical components, and electrical signal transmission systems, can solve the problems of large occupied area, low speed, and high power consumption, and achieve accelerated conversion, increased charging and discharging speed, and improved speed effect

Pending Publication Date: 2020-04-10
ETOWNIP MICROELECTRONICS BEIJING CO LTD
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  • Abstract
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Problems solved by technology

[0004] Aiming at the defects existing in the prior art, the present invention proposes a dynamic comparator, electronic equipment and implementation method based on a charge steering structure with a small delay and high speed and low power consumption, which are used to solve the problem of existing dynamic comparators. Problems such as low speed, high delay, large occupied area, and high power consumption

Method used

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  • Dynamic comparator, electronic equipment and implementation method thereof
  • Dynamic comparator, electronic equipment and implementation method thereof

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0023] figure 2 A structural diagram of the dynamic comparator provided by the embodiment of the present invention is shown.

[0024] A dynamic comparator comprising a preamplifier, a first-stage tail current switch Mn0b, a capacitor CT1, a capacitor CT2, a second-stage tail current switch Mp4, and a comparison component, the preamplifier and the comparison component are composed of nodes o1n and o1p connection.

[0025] Specifically, the first-stage tail current switch Mn0b and the capacitor CT1 form the first group of charge steering structures; the capacitor CT2 and the second-stage tail current switch Mp4 form the second group of charge steering structures, and the role of using the charge steering is to use less While having a circuit structure and a smaller circuit occupation area, the charging and discharging speed of the dynamic comp...

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Abstract

The invention relates to a dynamic comparator, electronic equipment and an implementation method thereof, and belongs to the field of dynamic comparators. The dynamic comparator comprises a preamplifier, a first-stage tail current switch Mn0b, a capacitor CT1, a capacitor CT2, a second-stage tail current switch Mp4 and a comparison component, and the preamplifier is connected with the comparison component through a node o1n and a node o1p. The dynamic comparator is realized by adopting a charge rudder structure formed by the switch and the capacitor, and the speed of the dynamic comparator isincreased while the circuit layout area and the power consumption are reduced.

Description

technical field [0001] The invention belongs to the field of dynamic comparators, and in particular relates to a dynamic comparator, electronic equipment and a realization method thereof. Background technique [0002] The most basic building block in an analog-to-digital converter is the comparator unit. Its function is to compare the voltage level of the two ends of the input, and then output a valid signal. The accuracy, speed, and power consumption of the comparator directly determine the performance of the analog-to-digital converter. Commonly used comparators include static comparators and dynamic comparators. Since the tail current of the static comparator always exists, it consumes more power than the dynamic comparator. The dynamic comparator has the advantages of high comparison speed, zero static power consumption and small occupied area, and is widely used in high-speed and low-power analog-to-digital converters. [0003] A commonly used high-speed dynamic comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03M1/34
CPCH03M1/34
Inventor 沈炎俊吴汉明
Owner ETOWNIP MICROELECTRONICS BEIJING CO LTD
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