Current outputting circuit and optical transmitter
First Claim
1. A current outputting circuit comprising:
- an output node;
a first circuit outputting a first signal and a second signal based on an input signal, the first and second signals having phases of complementary relationship; and
a second circuit outputting an output current from the output node based on the first and second signals,wherein the second circuit comprises;
a first current source with a first terminal and a second terminal, the first terminal being connected to a first power source; and
a first transistor with a third terminal, a fourth terminal and a fifth terminal, the first signal being input to the third terminal, the fourth and fifth terminals sandwiching a first current path controlled by the first signal, the fourth terminal being connected to the second terminal, the fifth terminal being connected to the output node,wherein the second signal is input to the fifth terminal.
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Accused Products
Abstract
According to one embodiment, a current outputting circuit includes an output node, a first circuit outputting a first signal and a second signal based on an input signal, the first and second signals having phases of complementary relationship, and a second circuit outputting an output current from the output node based on the first and second signals. The second circuit includes a first current source with a first terminal and a second terminal, the first terminal being connected to a first power source, and a first transistor with a third terminal, a fourth terminal and a fifth terminal, the first signal being input to the third terminal, the fourth and fifth terminals sandwiching a first current path controlled by the first signal, the fourth terminal being connected to the second terminal, the fifth terminal being connected to the output node. The second signal is input to the fifth terminal.
23 Citations
14 Claims
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1. A current outputting circuit comprising:
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an output node; a first circuit outputting a first signal and a second signal based on an input signal, the first and second signals having phases of complementary relationship; and a second circuit outputting an output current from the output node based on the first and second signals, wherein the second circuit comprises; a first current source with a first terminal and a second terminal, the first terminal being connected to a first power source; and a first transistor with a third terminal, a fourth terminal and a fifth terminal, the first signal being input to the third terminal, the fourth and fifth terminals sandwiching a first current path controlled by the first signal, the fourth terminal being connected to the second terminal, the fifth terminal being connected to the output node, wherein the second signal is input to the fifth terminal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification