RAMP GENERATION CIRCUIT AND A/D CONVERTER
First Claim
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1. A ramp generation circuit comprising:
- a charge supply unit which generates predetermined charges every predetermined time;
an integration circuit which accumulates the charges generated from the charge supply unit and converts the charges into a voltage; and
an attenuation unit which outputs, to an output terminal, a voltage obtained by attenuating a noise value of an output voltage from the integration circuit.
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Abstract
A ramp generation circuit including, a charge supply unit which generates predetermined charges every predetermined time, an integration circuit which accumulates the charges generated from the charge supply unit and converts the charges into a voltage, and, an attenuation unit which outputs, to an output terminal, a voltage obtained by attenuating a noise value of an output voltage from the integration circuit.
13 Citations
20 Claims
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1. A ramp generation circuit comprising:
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a charge supply unit which generates predetermined charges every predetermined time; an integration circuit which accumulates the charges generated from the charge supply unit and converts the charges into a voltage; and an attenuation unit which outputs, to an output terminal, a voltage obtained by attenuating a noise value of an output voltage from the integration circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An A/D converter comprising:
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a ramp generation unit including a charge supply unit which generates predetermined charges every predetermined time, an integration circuit which accumulates the charges generated from the charge supply unit and converts the charges into a voltage, and an attenuation unit which outputs, to an output terminal, a voltage obtained by attenuating a noise value of an output voltage from the integration circuit; and a converter unit configured to receive an output voltage from the ramp generation unit as a reference voltage and output a digital signal. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification