High voltage multiplexer element and multiplexer system using same
OwnerAyman Shabrainventor
Life of this patent
Estimating the term…
Abstract
This invention features a high voltage multiplexer element including a voltage to current converting input resistance connected to the input of the element, first and second MOSFET switches connected in series between the input resistance and the output of the multiplexer element, and a third MOS switch connected between the junction of the first and second MOSFET switches and a voltage equal to or less than the supply; the first MOSFET switch being drain engineered and having drain-source breakdown voltage higher than the supply.
Claims9
A high voltage multiplexer element comprising:
- a voltage to current converting input resistance connected to the input of said element;
- first and second MOSFET switches connected in series between said input resistance and the output of said multiplexer element;
- and
- a third MOS switch connected between the junction of said first and second MOSFET switches and a voltage equal to or less than the supply;
- said first MOSFET switch being drain engineered and having drain-source breakdown voltage higher than the supply.
A high voltage multiplexer system including a plurality of multiplexer elements comprising:
- a voltage to current converting input resistance connected to the input of each said element;
- first and second MOSFET switches connected in series between said input resistance and the output of each said multiplexer element;
- and
- a third MOS switch connected between the junction of said first and second MOSFET switches and a voltage equal to or less than the supply;
- said first MOSFET switch being drain engineered and having drain-source breakdown voltage higher than the supply.
A high voltage multiplexer system for an analog to digital converter including an integrator having an input resistance and an operational amplifier, loop filter, quantizer and a feedback digital to analog converter, said multiplexer system including a plurality of multiplexer elements each comprising:
- first and second MOSFET switches connected in series between said input resistance and said operational amplifier;
- and
- a third MOS switch connected between the junction of said first and second MOSFET switches and a voltage equal to or less than the supply;
- said first MOSFET switch being drain engineered and having drain-source breakdown voltage higher than the supply.
Dependencies are inferred from the claim text.