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US 11,018,670 B2Granted
Output buffer circuit
AssigneeTexas Instruments Incorporated
InventorAriel Dario Moctezuma
Life of this patent
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Abstract
An output buffer circuit includes an output terminal, a transistor, and a resistor. The transistor includes a first terminal coupled to the output terminal, a second terminal coupled to a ground rail, and a third terminal coupled to an output signal source. The resistor includes a first terminal coupled to a fourth terminal of the transistor, and a second terminal coupled to the ground rail.
Claims19
An output buffer circuit, comprising:
- an output terminal;
- a transistor comprising:
- a first terminal coupled to the output terminal;
- a second terminal directly connected to a ground rail;
- and
- a third terminal coupled to an output signal source;
- a resistor comprising:
- a first terminal coupled to a fourth terminal of the transistor;
- and
- a second terminal connected to the ground rail.
7 more elements
An output buffer circuit, comprising:
- an output terminal;
- a transistor comprising:
- a first terminal coupled to the output terminal;
- a second terminal coupled to a ground rail;
- and
- a third terminal coupled to an output signal source;
- a first resistor comprising:
- a first terminal coupled to a fourth terminal of the transistor;
- and
- a second terminal coupled to the ground rail;
- a second resistor comprising a first terminal coupled to a power supply rail;
- and
- a diode comprising:
- an anode terminal coupled to the fourth terminal of the transistor;
- and
- a cathode terminal coupled to a second terminal of the second resistor.
13 more elements
An output buffer circuit, comprising:
- an output terminal;
- a transistor comprising:
- a drain terminal coupled to the output terminal;
- a source terminal coupled to a ground rail;
- and
- a backgate terminal coupled to a ground via a resistor;
- wherein the resistor is configured to decouple the backgate terminal from the ground rail at frequencies higher than a selected frequency.
4 more elements
An integrated circuit, comprising:
- an output buffer circuit including:
- an output terminal;
- a first transistor comprising:
- a first terminal coupled to the output terminal;
- a second terminal connected to a ground rail;
- and
- a third terminal coupled to an output signal source;
- a first resistor comprising:
- a first terminal coupled to a fourth terminal of the first transistor;
- and
- a second terminal connected to the ground rail;
- a second resistor comprising a first terminal coupled to the third terminal of the first transistor;
- a second transistor comprising:
- a first terminal coupled to a second terminal of the second resistor;
- and
- a second terminal coupled to the ground rail;
- a third resistor comprising a first terminal coupled to a power supply rail;
- and
- a diode comprising:
- an anode terminal coupled to the fourth terminal of the first transistor;
- and
- a cathode terminal coupled to a second terminal of the second resistor.
19 more elements
Dependencies are inferred from the claim text.