| 摘要 |
A sense amplifier which is tolerant under differences in layout orientation, power supply variations and process variations is presented. The sense amplifier, operates between first and second power supplies and has two MOS transistors, each of which has a drain effectively connected to its gate to operate as functional diodes, connected in series between the first and second power supplies. The input terminal of the amplifier is connected to a node in series between the two MOS transistors and an inverter has its input node connected to the series node. The inverter's output node is coupled to the output terminal of the sense amplifier. The inverter, being responsive to a voltage at the input node, is set into one of two logic states so that a current at the sense amplifier's input terminal determines a logic state at the output terminal.
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