A T-Coil-Enhanced 8.5 Gb/s High-Swing SST Transmitter in 65 nm Bulk CMOS With ≪ -16 dB Return Loss Over 10 GHz Bandwidth

A source-series-terminated (SST) transmitter in a 65 nm bulk CMOS technology is presented. The circuit exhibits an eye height greater than 1.0 V for data rates of up to 8.5 Gb/s. A thin-oxide pre-driver stage running at 1.0 V drives 22 parallel connected thick-oxide SST output stages operated at 1.5...

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Veröffentlicht in:IEEE journal of solid-state circuits 2008-12, Vol.43 (12), p.2905-2920
Hauptverfasser: Kossel, M., Menolfi, C., Weiss, J., Buchmann, P., von Bueren, G., Rodoni, L., Morf, T., Toifl, T., Schmatz, M.
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Sprache:eng
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Zusammenfassung:A source-series-terminated (SST) transmitter in a 65 nm bulk CMOS technology is presented. The circuit exhibits an eye height greater than 1.0 V for data rates of up to 8.5 Gb/s. A thin-oxide pre-driver stage running at 1.0 V drives 22 parallel connected thick-oxide SST output stages operated at 1.5 V that feature a 5-bit 2-tap FIR filter whose adaptation is independent of the impedance tuning. To achieve a return loss of
ISSN:0018-9200
1558-173X
DOI:10.1109/JSSC.2008.2006230