High speed output buffers using voltage followers
AssigneeHoneywell International Inc.
InventorDavid E. Fulkerson
Life of this patent
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Abstract
An output buffer is provided in the form of a voltage follower having a positive input that receives a reference voltage, a negative input and an output coupled together, and a control input that turns the voltage follower on and off. The output is coupled to one side of a load. The output buffer may have one or more additional voltage followers. For example, the output buffer may include three additional voltage followers with all voltage followers arranged as a low voltage differential signal (LVDS) buffer.
Claims8
An output buffer comprising a voltage follower having a positive input, a negative input and an output coupled directly together, and a control input arranged to control an operational state of the voltage follower, wherein the positive input is a reference voltage input of the voltage follower, and wherein the output of the voltage follower is a load output of the voltage follower.
An output buffer system comprising a voltage follower, a reference voltage, and a load, wherein the voltage follower has a positive input coupled to the reference voltage, a negative input and an output coupled directly together, and a control input arranged to control an operational state of the voltage follower, and wherein the output of the voltage follower is coupled to one side of the load.
An output buffer comprising a voltage follower having a positive input, a negative input and an output coupled together, and a control input arranged to control an operational state of the voltage follower, wherein the positive input is a reference voltage input of the voltage follower, wherein a load is coupled between the output and a source, wherein the reference voltage input comprises one of a positive voltage and a negative voltage, and wherein the source comprises the other of the positive voltage and the negative voltage.
Dependencies are inferred from the claim text.