Dynamic amplifier
AssigneesSamsung Electronics Co., Ltd., Industry-Academic Cooperation Foundation, Yonsei University
InventorsYunhong Kim, Youngcheol Chae
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Abstract
A dynamic amplifier includes an amplifier configured to differentially amplify first and second input signals to generate first and second output signals, a bias circuit, and a variable impedance circuit. The bias circuit is connected between a first power node configured to supply a first source voltage and the amplifier, and configured to apply bias to the amplifier. The variable impedance circuit is connected between the amplifier and a second power node configured to supply a second source voltage that is lower than the first source voltage. The variable impedance circuit is configured to adjust amplification gain of the amplifier, by adjusting impedance based on a magnitude of one among the first and second input signals and the first and second output signals.
Claims7
A dynamic amplifier, comprising:
- a first input transistor having a gate configured to receive a first input signal and a drain configured to output a second output signal;
- a second input transistor having a gate configured to receive a second input signal and a drain configured to output a first output signal;
- a first feedback transistor having a drain connected to a source of the first input transistor, and having a resistance value determined by one among the first and second input signals and the first and second output signals;
- a second feedback transistor having a drain connected to a source of the second input transistor, and having a resistance value determined by one among the first and second input signals and the first and second output signals;
- a first capacitor connected to a source of the first feedback transistor;
- and
- a second capacitor connected to a source of the second feedback transistor.
Dependencies are inferred from the claim text.