Electronic digital logic circuitry – Interface – Current driving
Patent
1998-09-11
2000-04-18
Santamauro, Jon
Electronic digital logic circuitry
Interface
Current driving
326 83, 326 27, H03K 190185
Patent
active
060519959
ABSTRACT:
A low noise CMOS buffer has been provided which includes the advantages of having a stable load impedance and a linear-ramped current waveform at the output. The buffer adds waveform shaping transistors to delay the turn on of the driver circuits, and to shape the voltage and current waveforms of the drivers. These critically placed waveform shaping transistors accomplish the function of turning off the drivers in a manner to encourage an opposite polarity linear ramp current waveform at the buffer output. A method of using waveform shaping transistors to form a stable output impedance and a linear-ramped current waveform at the output of a buffer is also provided.
REFERENCES:
patent: 4785203 (1988-11-01), Nakamura
patent: 4789796 (1988-12-01), Foss
patent: 4855623 (1989-08-01), Flaherty
patent: 4880997 (1989-11-01), Steele
patent: 4961010 (1990-10-01), Davis
patent: 5081374 (1992-01-01), Davis
patent: 5089722 (1992-02-01), Amedeo
patent: 5120999 (1992-06-01), Schreck et al.
patent: 5315173 (1994-05-01), Lee et al.
patent: 5329175 (1994-07-01), Peterson
patent: 5398318 (1995-03-01), Hiraishi et al.
patent: 5438278 (1995-08-01), Wong et al.
patent: 5656960 (1997-08-01), Holzer
patent: 5914618 (1999-06-01), Mattos
Le Don Phu
Rabdau Matthew
Ripma David C.
Santamauro Jon
Sharp Electronics Corporation
LandOfFree
Constant impedance, low noise CMOS buffer does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Constant impedance, low noise CMOS buffer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Constant impedance, low noise CMOS buffer will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2338966