Hayes Soloway P.C.
Noise current compensation circuit
Disclosed is a noise current compensation circuit. The circuit is provided with two input and output terminals A and B, and two control terminals CON and CONF. The control terminals control a work mode (work state and pre-charge state) of the compensation circuit. The compensation circuit consists of 7 PMOS transistors and 8 NMOS transistors. In the normal work state, by detecting changes of potential change rate of two signal lines in an original circuit, the noise current compensation circuit automatically enables one end of the original circuit that discharges slowly to discharge a signal more slowly, and enables one end of the original circuit that discharges rapidly to discharge a signal more rapidly, thus eliminating the influence of the noise current on the circuit and providing assistance for correct identification of subsequent circuit signals. The current compensation circuit can be used for an SRAM bit line leakage current compensation circuit, because the existence of a large leakage current on the SRAM bit line leads to the decreasing of a voltage difference between two ends of the bit line, resulting in that a subsequent circuit cannot correctly identify a signal.
Southeast University
H G H G
H03K G11C H03K G11C
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