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US 6,784,500 B2Granted
High voltage integrated circuit amplifier
AssigneeAnalog Devices, Inc.
InventorMark Alan Lemkin
Life of this patent
Estimating the term…
Abstract
A circuit including at least one low voltage input, at least one high voltage output, and a field transistor having a source, a drain and a control region. The circuit may comprise a high-voltage amplifier. In this embodiment, an electrical connection between the high-voltage output terminal and the field transistor control region, and an electrical connection between the input terminal and a second transistor. Various embodiments of the field transistor are described.
Claims45
A circuit for quantifying a high-voltage signal comprising:
- a first terminal having a first voltage;
- an output terminal;
- a field transistor having a drain, a gate, and a source, said gate connected to said first terminal, said drain and source having a second and third voltage, said output terminal coupled to said field transistor, the field transistor having a gate oxide separating said source and said drain regions and said gate, said oxide has a thickness greater than a maximum thickness available to other devices on an integrated circuit chip on which the circuit is manufactured;
- wherein said output terminal provides a signal representative of said first voltage.
1 more element
A circuit, comprising:
- at least one low voltage input;
- a first high voltage terminal;
- and
- a first field transistor having a source, a drain and a control region, operable within a triode region;
- wherein said control region is coupled to said first high voltage terminal.
2 more elements
Dependencies are inferred from the claim text.