Amplifier
AssigneesSamsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology
InventorsHyeokki Hong, Ji-Hun Lee, Gyu-Hyeong Cho, Cheheung Kim, Hyunwook Kang
Life of this patent
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Abstract
An amplifier includes: a first input transistor connected to a first input, a first output, and a power source or a ground, a second input transistor connected to a second input, a second output, and the power source or the ground; a first replica transistor connected to the first input, a detection node, and the power source or the ground; a second replica transistor connected to the second input, the detection node, and the power source or the ground; and a bias transistor connected to a bias voltage, the detection node, and the power source or the ground.
Claims20
An amplifier comprising:
- a first input transistor having a first gate connected to a first input, a first connection line connected to a first output, and a second connection line connected to a power source or a ground;
- a second input transistor having a second gate connected to a second input, a third connection line connected to a second output, and a fourth connection line connected to the power source or the ground;
- a first replica transistor having a third gate connected to the first input, a fifth connection line connected to a detection node, and a sixth connection line connected to the power source or the ground;
- a second replica transistor having a fourth gate connected to the second input, a seventh connection line connected to the detection node, and an eighth connection line connected to the power source or the ground;
- and
- a bias transistor having a fifth gate connected to a bias voltage, a ninth connection line connected to the detection node, and a tenth connection line connected to the power source or the ground.
An amplifier comprising:
- a first input transistor having a first gate connected to a first input, a first drain connected to a first output, and a first source connected to a power source;
- a second input transistor having a second gate connected to a second input, a second drain connected to a second output, and a second source connected to the power source;
- a first replica transistor having a third gate connected to the first input, a third drain connected to a detection node, and a third source connected to the power source;
- a second replica transistor having a fourth gate connected to the second input, a fourth drain connected to the detection node, and a fourth source connected to the power source;
- and
- a bias transistor having a fifth gate connected to a bias voltage, a fifth drain connected to the detection node, and a fifth source connected to a ground.
An amplifier comprising:
- a first input transistor having a first gate connected to a first input, a first drain connected to a first output, and a first source connected to a ground;
- a second input transistor having a second gate connected to a second input, a second drain connected to a second output, and a second source connected to the ground;
- a first replica transistor having a third gate connected to the first input, a third drain connected to a detection node, and a third source connected to the ground;
- a second replica transistor having a fourth gate connected to the second input, a fourth drain connected to the detection node, and a fourth source connected to the ground;
- and
- a bias transistor having a fifth gate connected to a bias voltage, a fifth source connected to the detection node, and a fifth drain connected to a power source.
A method of operating an amplifier comprising:
- obtaining a detection voltage or a detection current at a detection node of the amplifier;
- adjusting input values of a first internal input and a second internal input of the amplifier based on the obtained detection current or the obtained detection voltage;
- and
- feeding back the adjusted input values of the first internal input and the second internal input as the input values of the amplifier such that the obtained detection current or the detection voltage corresponds to a target voltage or a target current,
- wherein the detection voltage or the detection current of the detection node is determined by drain currents of a first replica transistor and a second replica transistor of the amplifier.
Dependencies are inferred from the claim text.