Abstract
The characteristics and performance of a high-speed, burst-mode compatible receiver for optical bus or packet communications are described. It employs an Si bipolar differential transimpedance amplifier, an auto-threshold tracking level control circuit, and a DC-coupled decision circuit (ECL compatible quantizer). To cope with intermittent data packets, the threshold control circuit can capture data amplitude and set the logic threshold in about 1 ns. Using an avalanche photodiode, the typical receiver sensitivity is -37.5 dBm (10/sup -9/ BER) at bit rates up to 900 Mb/s, with a dynamic range of 23 dB for both pseudorandom and burst-mode signals. At 1 Gb/s, the sensitivity is -35 dBm. With a worst-case reset time >
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