Silicon-Based Low Leakage Current Cantilever Field Effect Transistor Mixer

Abstract

The invention provides a silicon-based low-leakage current cantilever field-effect transistor mixer, which uses a differential pair composed of two cantilever grid NMOS transistors to replace the conventional NMOS differential pair in the traditional mixer, and uses a MEMS cantilever beam The NMOS transistor of the switch replaces the conventional NMOS transistor located below the differential pair in the traditional mixer, which reduces the gate leakage current of the transistor in the mixer, reduces the power consumption of the circuit, and the mixer is small and easy to integrate, and In the mixer of the present invention, the cantilever switch NMOS tube located below the differential pair of cantilever beam grid NMOS tubes, if only a DC voltage is applied to the cantilever switch, then the cantilever switch pulls down to touch the NMOS tube under the action of the DC voltage. The gate of the tube, and the NMOS tube is turned on. At this time, it can be considered that the NMOS tube is a constant current source, so the mixer can be used as a differential amplifier at this time, so that the present invention uses the same number of transistors to realize two different functions.

Description

technical field [0001] The invention provides a silicon-based low-leakage current cantilever MOSFET mixer, which belongs to the technical field of micro-electromechanical systems. Background technique [0002] With the continuous development of the integrated circuit design industry, various special-purpose chips and circuits have been designed, and these chips and circuits can realize their own specific functions. However, in recent years, the integration scale of chip circuits has become larger and larger, and the heat dissipation and static power consumption of transistors in chips have become more and more serious. Changes in chip temperature will affect the stability of transistors and integrated circuits. With the rapid development of mobile terminals, the development of battery technology has encountered an unprecedented bottleneck, so the problem of reducing chip power consumption and heat dissipation is particularly important. [0003] The analog mixer circuit is a...

AI Technical Summary

Problems solved by technology

However, in recent years, the integration scale of chip circuits has become larger and larger, and the heat dissipation and static power consumption of transistors in chips have become more and more serious. Changes in chip temperature will affect the stability of transistors and integrated circuits.

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