Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Synchronizing
Patent
1999-04-30
2000-12-12
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Synchronizing
327538, 327541, 327543, 307110, 363 59, 363 60, H03L 706
Patent
active
061604321
ABSTRACT:
A source-switched or gate-switched charge pump having a cascoded output. A first current-mirror comprised of p-channel CMOS transistors is coupled on one side of an output node and a second current mirror comprised of n-channel CMOS transistors is coupled on the opposite side of the output node. A reference current source is coupled between the current mirrors. A p-channel CMOS cascode transistor is coupled between the first current mirror and the output node, and an n-channel CMOS cascode transistor is coupled between the second current mirror and the output node. A p-channel CMOS transistor switch is coupled to either the source or the gate of the output transistor of the first current mirror and receives a first control signal at its gate. An n-channel CMOS transistor switch is coupled to either the source or the gate of the output transistor of the second current mirror and receives a second control signal at its gate.
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Conta Matteo
Rhee Woogeun
Callahan Timothy P.
Conexant Systems Inc.
Luu An T.
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