Patent ID: 6535435
Filing Date: 2003-03-18
Classification: G11C,H01L

Abstract:
A semiconductor integrated circuit device comprising:a first voltage terminal for receiving a first voltage; a second voltage terminal for receiving a second voltage, a first differential amplifier including a first MOSFET of P-channel type having a source connected to a first node, a second MOSFET of P-channel type having a source connected to said first node, a current source connected between said first voltage terminal and said first node, a third MOSFET having a source-drain path connected between a drain of said first MOSFET and said second voltage terminal and a fourth MOSFET having a source-drain path connected between a drain of said second MOSFET and said second voltage terminal; a push-pull circuit which outputs a signal on the basis of a current difference between a source-drain current of said third MOSFET and a source-drain current of said fourth MOSFET; an output MOSFET having a gate receiving said signal and a source-drain path connected between said first voltage terminal and an output terminal; and a signal generator including a first diode-configured transistor having a cathode connected to said second voltage terminal, a second diode-configured transistor having a cathode connected to said second voltage terminal, a first load connected between said output terminal and an anode of said first diode-configured transistor, and a second load connected between said output terminal and an anode of said second diode-configured transistor, wherein a gate signal of said first MOSFET is derived from said first load and a gate signal of said second MOSFET is derived from said second load.