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US 11,901,868 B2Granted
Amplifier circuit, adder circuit, reception circuit, and integrated circuit
AssigneeSocionext Inc.
InventorHideki Kano
Life of this patent
Estimating the term…
Abstract
There are an amplifier circuit which includes a first current source that is connected to a power supply line to which a first electric potential is supplied, a differential input circuit that is connected between the first current source and a first node and configured to receive a differential input signal, a second current source that is connected between a power supply line to which a second electric potential is supplied and the first node, and a load circuit that is connected between a power supply line to which the first electric potential is supplied and a second node, and an inductor circuit is further connected between the first node and the second node. Thereby, the amplifier circuit achieves both lower voltage and linearity.
Claims26
An amplifier circuit, comprising:
- a first node, a second node, a third node and a fourth node;
- a first current source that is connected to a power supply line to which a first electric potential is supplied;
- a differential input circuit that is connected between the first current source and the first and third nodes and configured to receive a differential input signal;
- a second current source that is connected between a power supply line to which a second electric potential different from the first electric potential is supplied and the first and third nodes;
- a load circuit that is connected between the power supply line to which the first electric potential is supplied and the second and fourth nodes and configured to generate a differential output signal;
- a first inductor circuit that is connected between the first node and the second node;
- and
- a second inductor circuit that is connected between the third node and the fourth node.
5 more elements
An amplifier circuit, comprising:
- a first current source that is connected to a power supply line to which a first electric potential is supplied;
- a differential input circuit that is connected between the first current source and first and second nodes and configured to receive a differential input signal;
- a second current source that is connected between a power supply line to which a second electric potential different from the first electric potential is supplied and the first and second nodes;
- a load circuit that is connected between the power supply line to which the first electric potential is supplied and the first and second nodes and configured to generate a differential output signal;
- a first inductor circuit that is connected between the first node and the second current source;
- and
- a second inductor circuit that is connected between the second node and the second current source.
4 more elements
An adder circuit, comprising:
- a first node, a second node, a third node and a fourth node;
- a first current source that is connected to a power supply line to which a first electric potential is supplied;
- a differential input circuit that is connected between the first current source and the first and third nodes and configured to receive a differential input signal;
- a second current source that is connected between a power supply line to which a second electric potential different from the first electric potential is supplied and the first and third nodes;
- a load circuit that is connected between the power supply line to which the first electric potential is supplied and the second and fourth nodes and configured to generate a differential output signal;
- a first inductor circuit that is connected between the first node and the second node;
- a second inductor circuit that is connected between the third node and the fourth node;
- a third current source that is connected between the power supply line to which the second electric potential is supplied and the first node, a current amount of the third current source changing according to a control input;
- and
- a fourth current source that is connected between the power supply line to which the second electric potential is supplied and the third node, a current amount of the fourth current source changing according to the control input.
7 more elements
An adder circuit, comprising:
- a first current source that is connected to a power supply line to which a first electric potential is supplied;
- a differential input circuit that is connected between the first current source and a first node and configured to receive a differential input signal;
- a second current source that is connected between a power supply line to which a second electric potential different from the first electric potential is supplied and the first node;
- a load circuit that is connected between the power supply line to which the first electric potential is supplied and a second node;
- an inductor circuit that is connected between the first node and the second node;
- a third current source that is connected between the power supply line to which the second electric potential is supplied and the first node;
- and
- a fourth current source that is connected between the power supply line to which the first electric potential is supplied and the first node, a current amount of the fourth current source changing according to a control input.
5 more elements
An adder circuit, comprising:
- a first current source that is connected to a power supply line to which a first electric potential is supplied;
- a differential input circuit that is connected between the first current source and a first node and configured to receive a differential input signal;
- a second current source that is connected between a power supply line to which a second electric potential different from the first electric potential is supplied and the first node;
- a load circuit that is connected between the power supply line to which the first electric potential is supplied and the first node;
- an inductor circuit that is connected between the first node and the second current source;
- and
- a third current source that is connected between the power supply line to which the second electric potential is supplied and the first node, a current amount of the third current source changing according to a control input.
4 more elements
An adder circuit, comprising:
- a first current source that is connected to a power supply line to which a first electric potential is supplied;
- a differential input circuit that is connected between the first current source and a first node and configured to receive a differential input signal;
- a second current source that is connected between a power supply line to which a second electric potential different from the first electric potential is supplied and the first node;
- a load circuit that is connected between the power supply line to which the first electric potential is supplied and the first node;
- an inductor circuit that is connected between the first node and the second current source;
- a third current source that is connected between the power supply line to which the second electric potential is supplied and the first node;
- and
- a fourth current source that is connected between the power supply line to which the first electric potential is supplied and the first node, a current amount of the fourth current source changing according to a control input.
5 more elements
Dependencies are inferred from the claim text.