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A monolithic pulsed time-of-flight measurement system is presented in this paper. The circuit consists of an optical receiver front-end and time-to-digital converter. Received pulse amplitude detectors are also included to correct measurement for walk error. The IC is fabricated in a 0.18-mum BiCMOS process. The receiver front-end achieves a 2.3 GHz bandwidth and NF lower than 5 dB. The system shows...
The large input capacitance seen at the input of transimpedance amplifiers (TIA) used in optical receivers is usually the primary BW bottleneck. A new approach for increasing the BW of shunt feedback TIA's utilizing negative miller capacitance is presented which incurs no significant power, area or noise penalty. With this technique, 10 Gb/s performance is made possible with the usage of just a single...
This work reports 96Gb/s throughput transceiver modules, consisting of 64 parallel channels operated at 1.5Gb/s each, implemented on a 75 mum pitch in a 0.35 mum SiGe BiCMOS technology. The adopted technology provides high bulk resistivity, which is desirable for low channel crosstalk. The 75 mum pitch only allows one pad per channel, thus requiring the use of common cathode devices for both VCSEL...
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