Electronic digital logic circuitry – Interface – Current driving
Reexamination Certificate
2006-05-16
2006-05-16
Le, Don (Department: 2819)
Electronic digital logic circuitry
Interface
Current driving
C327S108000
Reexamination Certificate
active
07046039
ABSTRACT:
A class AB analog inverter comprising cascoded n-channel (NMOS) and p-channel (PMOS) transistors. The inverter uses complementary devices, of which one or more may be a first transistor in cascode with a second transistor. The first and second transistors may have the same threshold voltage (VT), or may have different threshold voltages. The class AB inverter provides improved slew rate and low power capabilities for use in mixed-signal integrated circuits such as analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and active filters.
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patent: 6259280 (2001-07-01), Koelling
patent: 6265929 (2001-07-01), Hauser
patent: 6512393 (2003-01-01), Whitworth et al.
Early Adrian B.
Kutz Harold M.
Cypress Semiconductor Corporation
Le Don
Wagner , Murabito & Hao LLP
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