| 摘要 |
PROBLEM TO BE SOLVED: To provide an amplifier circuit, an integrator and an AD converter of low power consumption.SOLUTION: An amplifier circuit includes first through fourth transistors, first and second inverter circuits, first through fourth capacitive elements, first through fourth switches, and first and second voltage sources. The first, second (third, fourth) transistor is first (second) conductivity type, and the second (fourth) transistor has a first terminal connected with the first terminal of the first (third) transistor. The first (second) inverter circuit has an input terminal connected with the first terminal of the first (third) transistor, and an output terminal connected with the control terminal of the second (fourth) transistor. The first (third) capacitive element is connected between the first terminal of the first (third) transistor, and the input terminal of the first (second) inverter circuit. The second (fourth)capacitive element is connected between the control terminal of the second (fourth) transistor and the first (second) inverter circuit. |
