Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Current driver
Reexamination Certificate
2006-07-10
2008-10-28
Donovan, Lincoln (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Current driver
C327S563000
Reexamination Certificate
active
07443210
ABSTRACT:
A transmission circuit includes a first-stage circuit, a second-stage circuit, a negative active feedback circuit and a current buffer. The first-stage circuit includes at least an active MOS device for receiving an input voltage and issuing a first voltage signal. The active MOS device has an inductive feature during operation in a high frequency mode to compensate the first voltage signal. In response to the first voltage signal, the second-stage circuit outputs a first output voltage. The negative active feedback circuit may enhance the bandwidth of the first output voltage. The current buffer may enhance the gain value of the first output voltage. A second voltage signal is issued from the first-stage circuit and compensated by the first output voltage transmitted from the current buffer to enhance the bandwidth and the gain value thereof. In response to the compensated second voltage signal, the second-stage circuit outputs a second output voltage.
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S. Galal, et al, “10Gb/s Limiting Amplifier and Laser/Modulator Driver in 0.18μm CMOS Techonology”, Dec. 2003, pp. 2138-2146, IEEE Journal of Solid-State Circuits, vol. 38, No. 12.
Yasumoto Tomita et al, “A 10Gb/s Receiver with Equalizer and On-chip ISI Monitor in 0.11μm CMOS”, pp. 202-205, 2004 Symposium on VLSI Circuits, Digest of Technical Papers.
Chiu Ching Te
Hsu Shuo Hung
Jen Zee Shian
Kao Min Sheng
Wu Jen Ming
Bacon & Thomas PLLC
Donovan Lincoln
National Tsing Hua University
Nguyen Hai L.
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