Chip with high performance and low noise and manufacturing method thereof

Abstract

The invention discloses a chip with high performance and low noise, which is provided with a reference voltage module, an analog-to-digital converter and a signal processing module connected with the analog-to-digital converter. The chip with high performance and low noise is characterized by further comprising a first welding guide point, a first pin, a second welding guide point, a third welding guide point, a second pin and a fourth welding guide point, wherein the first welding guide point is connected with a reference voltage output end of the reference voltage module; the first pin is connected with the first welding guide point through a lead; the second welding guide point is connected with the first pin through a lead, and the second welding guide point is connected with a forward input end of the analog-to-digital converter; the third welding guide point is connected with a grounding end of the reference voltage module, a grounding end of the analog-to-digital converter and a grounding end of the signal processing module; the second pin is connected with the third welding guide point through a lead; and the fourth welding guide point is connected with the second pin through a lead, and the fourth welding guide point is connected with an inverted input end of the analog-to-digital converter. The invention further provides a preparation method of the chip with high performance and low noise.

Description

technical field [0001] The invention relates to a high-performance low-noise chip and a manufacturing method thereof, in particular to a packaging method for a high-performance low-noise chip. Background technique [0002] Now with the development of integrated circuits, many modules are integrated together, but the core of these modules is basically an analog-to-digital converter, so the performance requirements of the analog-to-digital converter are getting higher and higher. At present, in the chip system, as the performance requirements for the analog-to-digital converter become higher, to meet this high-performance requirement, the reference voltage of the analog-to-digital converter includes the ground signal required by the analog-to-digital converter as a feedback signal. . At present, many designs for these two points do not consider much. The reference voltage is generated by the internal reference voltage module and directly supplied to the analog-to-digital conv...

AI Technical Summary

Problems solved by technology

This connection method is to mix the system feedback signal of the analog-to-digital converter with the internal ground of the system, so that the overall performance of the analog-to-digital converter is relatively low, and the noise is relatively large

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