Amplitude-limiting conversion circuit applicable to subthreshold region
A conversion circuit and sub-threshold technology, applied in the direction of limiting amplitude, electrical components, amplification control, etc., can solve the problems that the inverter cannot meet the real-time requirements and the driving ability of the MOS tube is reduced.
Inactive Publication Date: 2012-04-25
SOUTHEAST UNIV
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Problems solved by technology
Unfortunately, with the further reduction of the power supply voltage, especially after entering the sub-threshold region, the driving capability of the MOS transistor is further reduced, so that the traditional inverter can no longer meet the real-time requirements for the signal conversion from the super-threshold region to the sub-threshold region. Require
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[0014] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention Modifications in equivalent forms all fall within the scope defined by the appended claims of this application.
[0015] figure 1 It is a schematic circuit diagram of a limit conversion circuit applicable to a sub-threshold region according to an embodiment of the present invention. The limit conversion circuit is used to convert an input signal in a super-threshold region into an output signal in a sub-threshold region, and consists of three PMOS transistors ( The first PMOS transistor P1 to the third PMOS transistor P3) are composed of five NMOS transistors (the first NMOS transis...
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The invention discloses an amplitude-limiting conversion circuit applicable to a subthreshold region. A conventional inverter working in a superthreshold region is provided; an amplitude-limiting inverter working in the subthreshold region is provided; and the input end of the amplitude-limiting inverter is connected with the output end of the conventional inverter. The amplitude-limiting conversion circuit applicable to the subthreshold region is used for converting an input signal in the superthreshold region into an output signal in a subthreshold region, so that the signal amplitude-limiting conversion function from the superthreshold to the subthreshold is realized. The amplitude-limiting conversion circuit can serve as an interface module between a superthreshold circuit module and a subthreshold circuit module and can quickly fulfill the aim of converting the superthreshold signal amplitude into the subthreshold signal amplitude.
Description
technical field [0001] The invention relates to a limit conversion circuit suitable for a sub-threshold region. The circuit converts an input signal in a super-threshold region into an output signal in a sub-threshold region, thereby realizing the conversion of signal amplitude, and belongs to the technical field of integrated circuit design. Background technique [0002] The multi-supply voltage mode is widely used in low-power SOCs, which minimizes the total power consumption of the system by effectively configuring the power supply voltage of each functional module. However, amplitude conversion is required for signal transmission between different modules in a multi-supply voltage system. Traditionally, the conversion of a high-amplitude signal to a low-amplitude signal is performed by an inverter. Unfortunately, with the further reduction of the power supply voltage, especially after entering the sub-threshold region, the driving capability of the MOS transistor is fur...
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IPC IPC(8): H03G11/00
Inventor 柏娜朱贾峰吕百涛李瑞兴宋强
Owner SOUTHEAST UNIV