ON CHIP TEMPERATURE DETECTOR, TEMPERATURE DETECTION METHOD AND REFRESH CONTROL METHOD USING THE SAME
First Claim
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1. A temperature sensor comprising:
- a proportional to absolute temperature (PTAT) current generator configured to generate a first current proportional to temperature;
a first complementary to absolute temperature (CTAT) current generator configured to generate a second current inversely proportional to temperature;
a second CTAT current generator configured to generate a third current inversely proportional to temperature; and
a temperature sensing unit configured to convert the first current, the second current, and the third current into a signal related to the temperature.
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Abstract
A temperature sensor includes a proportional to absolute temperature (PTAT) current generator configured to generate a first current proportional to temperature, a first complementary to absolute temperature (CTAT) current generator configured to generate a second current inversely proportional to temperature, a second CTAT current generator configured to generate a third current inversely proportional to temperature, and a temperature sensing unit configured to convert the first current, the second current, and the third current into a signal related to the temperature.
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Citations
63 Claims
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1. A temperature sensor comprising:
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a proportional to absolute temperature (PTAT) current generator configured to generate a first current proportional to temperature;
a first complementary to absolute temperature (CTAT) current generator configured to generate a second current inversely proportional to temperature;
a second CTAT current generator configured to generate a third current inversely proportional to temperature; and
a temperature sensing unit configured to convert the first current, the second current, and the third current into a signal related to the temperature. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A temperature detection method for a temperature sensor comprising:
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generating a first current proportional to temperature;
generating a second current inversely proportional to temperature;
generating a third current inversely proportional to temperature;
adjusting the second current such that the first current is substantially equal to the second current at a high temperature;
adjusting the third current such that a sum of the first current and the third current has a minimum deviation from a constant over temperature; and
converting the first current, the second current, and the third current into a signal related to the temperature. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 51, 52, 53, 54)
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49. A temperature detection method for a semiconductor device comprising:
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generating a first current proportional to temperature;
generating a second current inversely proportional to temperature;
generating a third current inversely proportional to temperature; and
converting the first current, the second current, and the third current into a signal related to the temperature. - View Dependent Claims (50, 55, 56, 57, 58, 59, 60, 61, 62, 63)
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Specification