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US 7,605,613 B2Granted
Bulk input current switch logic circuit
AssigneeIndustrial Technology Research Institute
InventorsHong-Yi Huang, Chun-Tsai Hung, Yuan-Hua Chu
Life of this patent
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Abstract
A current switch logic circuit is disclosed. The circuit includes a current sense amplifier formed by a first transistor to a fifth transistor, and a logic tree. The logic tree is used to generate a first current and a second current. The current sense amplifier generates a first output signal and a second output signal according to the first current and the second current.
Claims15
A current switch logic circuit, comprising:
- a current sense amplifier, comprising:
- a first transistor, having a gate, a first source/drain and a second source/drain, wherein the first source/drain is coupled to a first voltage, the gate is coupled to a pre-charge enable signal;
- a second transistor, having a gate, a first source/drain and a second source/drain, wherein the first source/drain is coupled to the second source/drain of the first transistor, the gate is coupled to a first output terminal, and the second source/drain is coupled to a second output terminal;
- a third transistor, having a gate, a first source/drain and a second source/drain, wherein the first source/drain is coupled to the second source/drain of the first transistor, the gate is coupled to the second output terminal, and the second source/drain is coupled to the first output terminal;
- a fourth transistor, having a gate, a first source/drain and a second source/drain, wherein the first source/drain is coupled to the second output terminal, the gate is coupled to the first output terminal;
- and
- a fifth transistor, having a gate, a first source/drain and a second source/drain, wherein the first source/drain is coupled to the first output terminal, and the gate is coupled to the second output terminal;
- and
- a logic tree, coupled to the current sense amplifier, for generating a first current according to a first input signal and a second input signal, and generating a second current according to a third input signal and a fourth input signal.
6 more elements
Dependencies are inferred from the claim text.