A Multi-Precision Radiation Resistant Logic Control Device for SAR ADC

Abstract

The invention discloses a multi-precision anti-irradiation logic control device for SAR ADC, which includes an input register for writing external configurations and generating control signals for internal configurations; a sampling counter generates stage control signals and format control signals; an internal clock The generator generates an effective internal clock signal during the conversion phase; the capacitor control switch generates the sample / hold control switch signal of the capacitor array; the intermediate result register is used to store the AD conversion result; the register conversion module stores the AD conversion result in parallel and completes the final serial Line output; wherein the control logic module is used to realize the logic control of the above-mentioned components, so that the sampling stage and the internal conversion stage are time-shared. The device can be applied to ADC circuits in various application environments, and has the advantages of small area, low power consumption and strong scalability.

Description

technical field [0001] The invention belongs to the technical field of ADC logic control; in particular, it relates to a multi-precision anti-irradiation logic control device for SAR ADC. Background technique [0002] In the past few decades, integrated circuits have developed rapidly at an astonishing speed, and the degree of digitization has continued to deepen, and the requirements for analog-to-digital conversion technology (ADC) in the system have also become higher and higher. The analog-to-digital converter not only needs to have a high sampling rate and quantization accuracy, but at the same time, as the power supply voltage continues to decrease, the chip area is getting smaller and smaller, and the ADC must also have a high conversion efficiency and low power consumption. The past high-speed ADC design was mainly based on the pipeline structure, and the disadvantages of large pipeline structure area and high power consumption are increasingly unable to meet the sys...

AI Technical Summary

Problems solved by technology

Most of the existing ADC logic control technologies are only for a specific product, have low compatibility, and do not have anti-radiation performance, which greatly limits the application environment of ADC chips

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