Back to results
US 7,119,601 B2Granted
Backgate pull-up for PMOS pass-gates
AssigneeTexas Instruments Incorporated
InventorLeo J. Grimone, III
Life of this patent
Estimating the term…
Abstract
The pass-gate circuit with backgate pull-up includes: a pass-gate transistor coupled between a first port and a second port; a backgate pull-up transistor coupled between a back gate of the pass-gate transistor and a gate of the pass-gate transistor; a first MOS transistor coupled between a first port and the gate of the pass-gate transistor; and a second MOS transistor coupled between a second port and the gate of the pass-gate transistor.
Claims13
A circuit comprising:
- a first transistor coupled between a first port and a second port;
- a second transistor coupled in parallel with the first transistor, wherein the first and second transistor form a switch;
- a third transistor coupled between a back gate of the second transistor and a gate of the second transistor, wherein the third transistor is turned on when the first and second transistors are turned off;
- a fourth transistor coupled between the first port and the gate of the second transistor;
- a fifth transistor coupled between the second port and the gate of the second transistor;
- a first schottky diode coupled between the fourth transistor and the gate of the second transistor;
- and
- a second schottky diode coupled between the fifth transistor and the gate of the second transistor.
5 more elements
A pass-gate circuit with backgate pull-up comprising:
- a pass-gate transistor coupled between a first port and a second port;
- a backgate pull-up transistor coupled between a back gate of the pass-gate transistor and a gate of the pass-gate transistor;
- a first MOS transistor coupled between the first port and the gate of the pass-gate transistor;
- a second MOS transistor coupled between the second port and the gate of the pass-gate transistor;
- a first schottky diode coupled between the first MOS transistor and the gate of the pass-gate transistor;
- and
- a second schottky diode coupled between the second MOS transistor and the gate of the pass-gate transistor.
4 more elements
Dependencies are inferred from the claim text.