A Cross-coupling Type Level Shift with High CMTI Circuit Design
A new cross-coupled structure with high Common Mode Transient Immunity(CMTI)level shifting circuit was proposed.A narrow pulse signal generation circuit was adopted to reduce the overall power consumption.With the implementation of a current-controlled comparator,the transmission delay of the level shifting circuit is substantially diminished.Additionally,an auxiliary dynamic current compensation structure was designed to improve the CMTI.The new level shifting circuit is designed and simulated based on a high-voltage 0.18μm BCD process,and the results show that the rise and fall delays of the designed level shifter are less than 3.4 ns,and the common-mode transient immunity is 200 V/ns.
CMTIlevel shift circuitnarrow pulse generation circuitcurrent comparatordouble interlocking unit
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