CMOS level shifter with feedforward control to prevent latching

Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Amplitude control

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Details

327309, 327540, 326 33, 326 68, H03L 500

Patent

active

054867851

ABSTRACT:
A level shift circuit provided with feedforward control to keep the circuit from latching in a wrong logic state comprises a pair of input transistors acted as a differential amplifier and a pair of output hold transistors coupled to output nodes of the circuit. The feedforward control is performed by a pair of feedforward transistors respectively coupled in parallel to the corresponding output hold transistors, and by a pair of isolation transistors that isolate the output nodes from gates of the respective feedforward transistors.

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