Digital temperature sensing circuit
AssigneeSK hynix Inc.
InventorsChan Hui JEONG, Suk Hwan CHOI
Life of this patent
Estimating the term…
Abstract
The digital temperature sensing circuit includes a temperature voltage generator configured to generate a temperature voltage varying with a temperature in response to a first reference voltage, divide a supply voltage in response to a second reference voltage, and generate a high voltage and a low voltage, a code voltage generator configured to divide the second reference voltage based on the high voltage and the low voltage and output divided voltages having different voltage levels, and a mode selector supplied with the temperature voltage and the divided voltages, and configured to output a first code or a second code in response to a mode select signal, wherein the first code and the second code have different numbers of bits.
Claims20
A digital temperature sensing circuit, comprising:
- a temperature voltage generator configured to generate a temperature voltage varying with a temperature in response to a first reference voltage, divide a supply voltage in response to a second reference voltage, and generate a high voltage and a low voltage;
- a code voltage generator configured to divide the second reference voltage based on the high voltage and the low voltage and output divided voltages having different voltage levels;
- and
- a mode selector supplied with the temperature voltage and the divided voltages, and configured to output a first code or a second code in response to a mode select signal, wherein the first code and the second code have different numbers of bits.
A digital temperature sensing circuit, comprising:
- a temperature voltage generator configured to generate a temperature voltage varying with a temperature, a high voltage, and a low voltage;
- a code voltage generator configured to output divided voltages having various voltage levels based on the high voltage and the low voltage;
- and
- a mode selector supplied with the temperature voltage and the divided voltages, and configured to output first codes or second codes having a resolution higher than that of the first codes in response to a mode select signal.
Dependencies are inferred from the claim text.