Patent attributes
An amplitude limiting value can be set to an intended value of a designer and the dependence of the amplitude limiting value on the temperature can be avoided. An amplitude limiting circuit according to the present invention includes a pair of first conductivity type MOS transistors provided in a diode-connected configuration, which is connected between one output terminal of a differential circuit and the other output terminal thereof, a first source follower circuit comprising second conductivity type first and second MOS transistors connected in series between a first power supply and a second power supply, a second source follower circuit comprising second conductivity type third and fourth MOS transistors connected in series between the first power supply and the second power supply, and a current supply circuit comprising a current source that outputs a current proportional to an absolute temperature and a resistor both of which are connected in series between the first power supply and the second power supply.
