| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an integrator using a switched capacitor for removing noise generated by switching of an input signal. <P>SOLUTION: This switched capacitor integrator has a switched capacitor part 300 for supplying first and second input voltage to a capacitor by a switch for switching according to a clock signal, a reference voltage supply part 200 for inputting reference voltage, and outputting the amplified reference voltage, a switching noise removing part 100 for maintaining output of the reference voltage supply part on a stable voltage level, an arithmetic amplifier A2 for receiving output of the switched capacitor part by negative (-) input, and receiving output of the reference voltage supply part via the switching noise removing part by positive (+) input, and a feedback capacitor C<SB>2</SB>for feeding back output of the arithmetic amplifier to the negative (-) input of the arithmetic amplifier. <P>COPYRIGHT: (C)2003,JPO</p> |
