LIGHT-RECEIVING AMPLIFIER CIRCUIT AND OPTICAL PICKUP DEVICE EQUIPPED WITH SAME

PROBLEM TO BE SOLVED: To accomplish a light-receiving amplifier circuit capable of shortening a settlement time while ensuring band limit capacitance. SOLUTION: In a light-receiving amplifier circuit 1, a configuration of a dummy amplifier 3 is the same as that of an IV amplifier 2 excepting for including a capacitor C2 to which a light-receiving element is not connected and which is a band limit capacitor. The relevant capacitor C2 is then connected between a collector of an emitter grounded transistor Tr102 and a GND. COPYRIGHT: (C)2006,JPO&NCIPI