Single-ended output driver buffer
AssigneeLattice Semiconductor Corporation
InventorsNathan Robert Green, Loren L. McLaury
Life of this patent
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AssigneeLattice Semiconductor Corporation
InventorsNathan Robert Green, Loren L. McLaury
Estimating the term…
Circuits and related methods are provided for buffering reference voltages from noise associated with output driver transistors. In one example, an output driver buffer circuit includes an output driver transistor adapted to adjust an output voltage of an output pad. The circuit also includes a pre-driver circuit connected to a gate of the output driver transistor. The pre-driver circuit is adapted to receive a reference voltage to control the output driver transistor. The pre-driver circuit includes a precharged capacitor, a first switch adapted to connect the capacitor to the gate, and a second switch adapted to connect the reference voltage to the gate. The second switch is adapted to operate following a time period after the capacitor is connected to the gate. The capacitor is adapted to buffer noise associated with the output driver transistor during the time period.
An output driver buffer circuit comprising:
A method of adjusting an output voltage of an output pad, the method comprising:
An output driver buffer circuit comprising:
Dependencies are inferred from the claim text.