Device and method for generating a low-voltage reference
First Claim
1. A voltage reference generator, comprising:
- a bandgap voltage reference circuit including a first complementary-to-absolute-temperature (CTAT) signal and a second complementary-to-absolute-temperature (CTAT) signal; and
a differential sensing device for generating a reference signal substantially insensitive to temperature variations over an operating temperature range from sensing the first and second CTAT signals.
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Accused Products
Abstract
A voltage reference generating method, source, memory device and substrate containing the same include a voltage reference generator comprised of a bandgap voltage reference circuit including a first complementary-to-absolute-temperature (CTAT) signal and a second complementary-to-absolute-temperature (CTAT) signal. The voltage reference generator further includes a differential sensing device for generating a reference signal substantially insensitive to temperature variations over an operating temperature range by differentially sensing the first and second CTAT signals. The method includes generating first and second complementary-to-absolute-temperature (CTAT) signals and generating a reference signal that is substantially insensitive to temperature variations over an operating temperature range.
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Citations
32 Claims
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1. A voltage reference generator, comprising:
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a bandgap voltage reference circuit including a first complementary-to-absolute-temperature (CTAT) signal and a second complementary-to-absolute-temperature (CTAT) signal; and
a differential sensing device for generating a reference signal substantially insensitive to temperature variations over an operating temperature range from sensing the first and second CTAT signals. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A memory device, comprising:
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a memory array; and
a voltage reference generator configured to facilitate data retention with the memory array, including;
a bandgap voltage reference circuit including a first complementary-to-absolute-temperature (CTAT) signal and a second complementary-to-absolute-temperature (CTAT) signal; and
a differential sensing device for generating a reference signal substantially insensitive to temperature variations over an operating temperature range from sensing the first and second CTAT signals. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. An electronic system comprising an input device, an output device, a memory device, and a processor device coupled to the input, output, and memory devices, at least one of the input, output, memory, and processor devices including a memory cell including at least one word line coupled to a voltage reference generator, comprising:
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a bandgap voltage reference circuit including a first complementary-to-absolute-temperature (CTAT) signal and a second complementary-to-absolute-temperature (CTAT) signal; and
a differential sensing device for generating a reference signal substantially insensitive to temperature variations over an operating temperature range from sensing the first and second CTAT signals. - View Dependent Claims (15, 16, 17, 18, 19)
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20. A semiconductor substrate on which is fabricated a memory device, comprising:
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an array of memory cells; and
a voltage reference generator configured to facilitate data retention with the memory array, including;
a bandgap voltage reference circuit including a first complementary-to-absolute-temperature (CTAT) signal and a second complementary-to-absolute-temperature (CTAT) signal; and
a differential sensing device for generating a reference signal substantially insensitive to temperature variations over an operating temperature range from sensing the first and second CTAT signals. - View Dependent Claims (21, 22, 23, 24, 25, 26)
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27. A method for generating a reference signal, comprising:
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generating a first complementary-to-absolute-temperature (CTAT) signal;
generating a second complementary-to-absolute-temperature (CTAT) signal; and
generating the reference signal substantially insensitive to temperature variations over an operating temperature range from differentially sensing the first and second CTAT signals. - View Dependent Claims (28, 29, 30, 31, 32)
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Specification