DRAM temperature measurement system
First Claim
1. A converter, comprising:
- a comparator having a first input operable to receive a first signal, a second input operable to receive a second signal, and an output;
a switch for sinking a portion of said first signal, wherein said switch is responsive to said output; and
an integrator connected to said first input, wherein said first signal is a voltage developed by said integrator when a current proportional to the absolute temperature is applied thereto.
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Abstract
A converter comprising a comparator having a first input operable to receive a first signal, a second input operable to receive a second signal, and an output, a switch for sinking a portion of the first signal, wherein the switch is responsive to the output, and an integrator connected to the first input, wherein the first signal is a voltage developed by the integrator when a current proportional to the absolute temperature is applied thereto. A method for measuring temperature of a device using a comparator and converting the bitstream of the comparator to a digital output is also given. Because of the rules governing abstracts, this abstract should not be used to construe the claims.
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Citations
32 Claims
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1. A converter, comprising:
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a comparator having a first input operable to receive a first signal, a second input operable to receive a second signal, and an output;
a switch for sinking a portion of said first signal, wherein said switch is responsive to said output; and
an integrator connected to said first input, wherein said first signal is a voltage developed by said integrator when a current proportional to the absolute temperature is applied thereto. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A temperature measurement system, comprising:
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a temperature sensor;
a converter operable to receive one or more signals from said temperature sensor, said converter comprising;
a comparator having a first input operable to receive a first signal, a second input operable to receive a second signal, and an output;
a switch for sinking a portion of said first signal, wherein said switch is responsive to said output; and
an integrator connected to said first input, wherein said first signal is a voltage developed by said integrator when a current proportional to the absolute temperature is applied thereto;
a counter, responsive to said output, for producing an output signal. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A memory system, comprising:
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a memory module;
a memory controller in communications with said memory module via a system bus; and
a temperature measurement module, wherein said temperature measurement module comprises;
a temperature sensor;
a converter operable to receive one or more signals from said at least one temperature sensor, wherein said converter comprises;
a comparator having a first input operable to receive a first signal, a second input operable to receive a second signal, and an output;
a switch for sinking a portion of said first signal, wherein said switch is responsive to said output; and
an integrator connected to said first input, wherein said first signal is a voltage developed by said integrator when a current proportional to the absolute temperature is applied thereto;
a counter, responsive to said output, for producing an output signal. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A method for measuring temperature, comprising:
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comparing a first signal proportional to a sensed absolute temperature to a reference signal; and
generating a bitstream in response to said comparison. - View Dependent Claims (29, 30, 31, 32)
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Specification