Zero static power consumption circuit device for different voltage domains of analogue integrated circuit

Abstract

The invention provides a zero static power consumption circuit device for different voltage domains of an analogue integrated circuit, which can be used for realizing the zero static power consumption of an enable circuit. The circuit device comprises four connection ports: a power supply Vdd, a ground Vss, an input Ven-in and an output Ven-out, wherein M1-M6 are PMOS (p-channel metal oxide semiconductor) transistors; M7 and M8 are NMOS (n-channel metal oxide semiconductor) transistors; INV1-INV4 are inverters; the Ven-in is connected to the resistor R1 and the input end of the INV1; the power supply of the INV1 is connected to a drain electrode of M2; the output end of the INV1 is connected to a grid electrode of M8 and the input end of the inverter INV2; the power supply of the INV2 is connected to the other end of the R1; the output end of the INV2 is connected to the grid electrode of M7 and the drain electrode of M1; the source electrode of M1 is connected to the drain electrode M2 and one end of a capacitor Cbs; the grid electrode of M2 and the drain electrode of M3 and the grid electrodes of M3 and M4 are all connected to one end of the Cst; the drain electrodes of M4 and M5, the grid electrode of the M6 and the drain electrode of the M7 are connected, the grid electrode of the M5, the drain electrodes of M6 and M8 and the input end of inverter INV3 are connected; the output end of inverter INV3 is connected to the input end of INV4 and the grid electrode of M1; and the output end of INV4 is the Ven-out.

Description

technical field [0001] The invention relates to the technical field of non-static power consumption circuits of analog integrated circuits, in particular to a non-static power consumption circuit device used in different voltage domains of analog integrated circuits. Background technique [0002] Power management integrated circuits such as low-dropout voltage regulators (LDO) and switching voltage regulators (BUCK and BOOST) are widely used in portable electronic products / systems (such as mobile phones), and enable circuits are usually required for analog integrated circuits such as these power management A unit circuit used. However, in a portable electronic system, the enable control terminal of the power management circuit is usually controlled by the digital circuit part, and the power supply voltage of the digital circuit part is generally inconsistent with the power supply voltage of the power management circuit itself (in different voltage domains). For example, the...

AI Technical Summary

Problems solved by technology

Therefore, in practical applications, when the portable electronic system will be in the sleep standby state for a long time, the enabling circuit will have static power consumption when it is turned on.

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