High-sensitivity clocked comparator and method thereof
First Claim
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1. A clocked comparator comprising:
- a first clocked transconductance amplifier configured to receive a first voltage signal and output a first current signal to an internal node in accordance with a clock;
a clocked regenerative load configured to enable a second voltage signal at the internal node to self-regenerate in accordance with the clock;
a SR (set-reset) latch configured to receive the second voltage signal at the internal node and output a third voltage signal; and
a second clocked transconductance amplifier configured to receive the third voltage signal and output a second current signal to the internal node.
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Abstract
A clocked comparator includes a first clocked transconductance amplifier configured to receive a first voltage signal and output a first current signal to an internal node in accordance with a clock; a clocked regenerative load configured to enable a second voltage signal at the internal node to self-regenerate in accordance with the clock; a SR (set-reset) latch configured to receive the second voltage signal at the internal node and output a third voltage signal; and a second clocked transconductance amplifier configured to receive the third voltage signal and output a second current signal to the internal node.
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Citations
20 Claims
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1. A clocked comparator comprising:
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a first clocked transconductance amplifier configured to receive a first voltage signal and output a first current signal to an internal node in accordance with a clock; a clocked regenerative load configured to enable a second voltage signal at the internal node to self-regenerate in accordance with the clock; a SR (set-reset) latch configured to receive the second voltage signal at the internal node and output a third voltage signal; and a second clocked transconductance amplifier configured to receive the third voltage signal and output a second current signal to the internal node. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method comprising:
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converting a first voltage signal into a first current signal directed to an internal node using a first clocked transconductance amplifier controlled by a clock; enabling a second voltage signal at the internal node to self-regenerate and develop into a resolved state using a clocked regenerative load controlled by the clock; imposing the resolved state of the second voltage signal onto a third voltage signal using a SR (set-reset) latch; and converting the third voltage signal into a second current signal directed to the internal node using a second clocked transconductance amplifier controlled by the clock. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification