Analog-to-digital conversion module, transfer function compensation method and device

An analog-to-digital conversion and transfer function technology, applied in the direction of physical parameter compensation/prevention, etc., can solve problems such as nonlinear effect correction, and achieve the effect of low cost and circuit complexity, good compensation effect, and high conversion accuracy.

Active Publication Date: 2018-02-16
ALICORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In other words, there is a nonlinear effect in the traditional pipeline analog-to-digital conversion module, but since the gain is linear, the nonlinear effect cannot be corrected by gain compensation alone

Method used

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  • Analog-to-digital conversion module, transfer function compensation method and device
  • Analog-to-digital conversion module, transfer function compensation method and device
  • Analog-to-digital conversion module, transfer function compensation method and device

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Embodiment Construction

[0043] Various exemplary embodiments will be described more fully hereinafter with reference to the accompanying drawings, in which some exemplary embodiments are shown. However, inventive concepts may be embodied in many different forms and should not be construed as limited to the illustrative embodiments set forth herein. Rather, these exemplary embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the size and relative sizes of layers and regions are exaggerated for clarity. Like numbers indicate like elements throughout. It should be understood that the term "or" used herein may include any one or all combinations of more of the associated listed items depending on the actual situation.

[0044] Embodiments of the present invention provide a transfer function compensation method and device for improving the non-linear characteristics of the transfer f...

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PUM

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Abstract

Embodiments of the present invention provide an analog-to-digital conversion module, a transfer function compensation device and method, and the transfer function compensation method is used to compensate the nonlinear effect existing in the analog-to-digital conversion module. First, a plurality of compensation functions corresponding to a plurality of input ranges are provided, wherein the compensation functions are used to compensate the actual output signal generated by the input signal corresponding to the input range, so as to reduce the difference between the actual output signal and the ideal Signal difference value between output signals. Next, the input range of the input signal is determined. Then, the actual output signal generated by the actual transfer function based on the input signal is compensated by using the compensation function corresponding to the determined input range. Through the above transfer function compensation method, the actual output signal of the analog-to-digital conversion module will be approximately or equal to the ideal output signal.

Description

technical field [0001] The present invention relates to an analog-digital conversion (analog-digital conversion) module, and in particular to a transfer function compensation method and device for the analog-digital conversion module. Background technique [0002] The analog-to-digital conversion module is a basic element commonly found in electronic equipment, and has a transfer function to convert an analog signal into a digital signal through the transfer function. In general, the actual transfer function of an analog-to-digital conversion module will differ from the ideal transfer function due to the nonlinear gain of the amplifier. [0003] Please refer to figure 1 , figure 1 It is a schematic diagram of the actual transfer function and the ideal transfer function of a traditional pipelined analog-to-digital conversion module. exist figure 1 In , the horizontal axis is used to represent the unit intensity of the input signal, and the vertical axis is used to represe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03M1/06
Inventor 金霄
Owner ALICORP
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