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 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.
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Circuit properties
Circuits
Clocks
CMOS technology
De-emphasis
Design. Technologies. Operation analysis. Testing
Electric, optical and optoelectronic circuits
Electronic circuits
Electronics
Exact sciences and technology
Finite impulse response filter
Frequency filters
Guidelines
Image restoration
Impedance
impedance tuning
Integrated circuits
Propagation losses
return loss
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
source series termination
T-coil
Transmitters
Voltage
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Beschreibung
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