Low-power-consumption circuit capable of selecting signal port through trimming

Abstract

The invention discloses a low-power-consumption circuit capable of selecting a signal port through trimming, which is a circuit design scheme capable of realizing signal selection through a trimming form and consists of an input circuit, a control circuit and an output circuit. The input circuit comprises a constant current source, a bias type switching device and a trimming structure, the controlcircuit is arranged at the rear stage of the input circuit, the output of the control circuit is connected with the control end of the output circuit, and the second output circuit selects one path to be input to the output end. The circuit has the characteristics of the simple structure and low power consumption, and can be widely applied to circuits needing to be trimmed. The circuit structureis simple, and the occupied layout area is small; and the power consumption is low, and the influence on the quiescent current of the whole circuit can be ignored. The circuit can be used in an integrated circuit to select on-chip signals, off-chip signals and other signals through trimming.

Description

technical field [0001] The invention relates to a low-power integrated circuit for selecting a signal port through trimming, and is a circuit design scheme capable of realizing signal selection through trimming. Background technique [0002] In integrated circuit design, the process feature size is getting smaller and smaller, the integrated functions are getting more and more, and the signal input channels are also increasing. Therefore, it can only be selected by customers through trimming or multiple chips, which will increase the cost of chip inventory, design, and production. Using the trimming selection signal function, multiple versions can be realized on the same product. Contents of the invention [0003] The purpose of the present invention is to provide a low power consumption circuit for selecting a signal port through trimming, and to provide a circuit design scheme for selecting a signal port through trimming on the same chip. [0004] Another object of the ...

AI Technical Summary

Problems solved by technology

[0002] In integrated circuit design, the process feature size is getting smaller and smaller, the integrated functions are getting more and more, and the signal input channels are also increasing. Therefore, it can only be selected by customers through trimming or multiple chips, which will increase the cost of chip inventory, design, and production. By using the trimming selection signal function, multiple versions can be realized on the same product.

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