Voltage generation circuit and semiconductor device using the same
AssigneeSK hynix Inc.
InventorsJi Hyo Kang, Sung Kwon Lee
Life of this patent
Estimating the term…
Abstract
A voltage generation circuit includes a global driver, a local driver, and a local voltage converter. The global driver changes the voltage level of a second voltage line based on the voltage levels of a first boundary voltage and a first voltage line and changes the voltage level of a fourth voltage line based on the voltage levels of a second boundary voltage and a third voltage line. The local driver adjusts the voltage levels of the first and third voltage lines based on the voltage levels of the second and fourth voltage lines. The local voltage converter generates an internal voltage having a voltage level between the voltage levels of the first and third voltage lines.
Claims21
A voltage generation circuit comprising:
- a global driver configured to change a voltage level of a second voltage line by differentially amplifying a voltage level of a first boundary voltage and a voltage level of a first voltage line and configured to change a voltage level of a fourth voltage line by differentially amplifying a voltage level of a second boundary voltage and a voltage level of a third voltage line;
- a local driver configured to adjust the voltage level of the first voltage line based on the voltage level of the second voltage line and a bias voltage and configured to adjust the voltage level of the third voltage line based on the voltage level of the fourth voltage line and the bias voltage;
- and
- a local voltage converter configured to generate an internal voltage having a voltage level between the voltage levels of the first and third voltage lines based on a local decoding signal.
A semiconductor device comprising a voltage generation circuit,
- wherein the voltage generation circuit comprises:
- a global driver configured to change a voltage level of a second voltage line by differentially amplifying a voltage level of a first boundary voltage and a voltage level of a first voltage line and configured to change a voltage level of a fourth voltage line by differentially amplifying a voltage level of a second boundary voltage and a voltage level of a third voltage line;
- a first local driver configured to adjust the voltage level of the first voltage line based on the voltage level of the second voltage line, a bias voltage, and a first enable signal and configured to adjust the voltage level of the third voltage line based on the voltage level of the fourth voltage line, the bias voltage, and the first enable signal;
- a first local voltage converter configured to generate a first internal voltage having a voltage level between the voltage levels of the first and third voltage lines based on a first local decoding signal;
- a second local driver configured to adjust the voltage level of the first voltage line based on the voltage level of the second voltage line, the bias voltage, and a second enable signal and configured to adjust the voltage level of the third voltage line based on the voltage level of the fourth voltage line, the bias voltage, and the second enable signal;
- and
- a second local voltage converter configured to generate a second internal voltage having a voltage level between the voltage levels of the first and third voltage lines based on a second local decoding signal.
A voltage generation circuit comprising:
- a global driver configured to output a first driving voltage having a constant voltage level to a second voltage line by differentially amplifying a voltage level of a first boundary voltage and a voltage level of a first voltage line and configured to output a second driving voltage having a constant voltage level to a fourth voltage line by differentially amplifying a voltage level of a second boundary voltage and a voltage level of a third voltage line;
- a local driver configured to adjust the voltage level of the first voltage line based on the first driving voltage and a bias voltage and configured to adjust the voltage level of the second voltage line based on the second driving voltage and the bias voltage;
- and
- a local voltage converter configured to generate an internal voltage having a voltage level between the voltage levels of the first and third voltage lines based on a local decoding signal.
Dependencies are inferred from the claim text.