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An InP-Based 27-GHz-Bandwidth Limiting TIA IC Designed to Suppress Undershoot and Ringing in Its Output Waveform
Hiroyuki FUKUYAMA Michihiro HIRATA Kenji KURISHIMA Minoru IDA Masami TOKUMITSU Shogo YAMANAKA Munehiko NAGATANI Toshihiro ITOH Kimikazu SANO Hideyuki NOSAKA Koichi MURATA
IEICE TRANSACTIONS on Electronics
Publication Date: 2016/03/01
Online ISSN: 1745-1353
Type of Manuscript: PAPER
Category: Electronic Circuits
transimpedance amplifier, limiting amplifier, output-stage amplifier, undershoot, ringing, RSSI,
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A design scheme for a high-speed differential-input limiting transimpedance amplifier (TIA) was developed. The output-stage amplifier of the TIA is investigated in detail in order to suppress undershoot and ringing in the output waveform. The amplifier also includes a peak detector for the received signal strength indicator (RSSI) output, which is used to control the optical demodulator for differential-phase-shift-keying or differential-quadrature-phase-shift-keying formats. The limiting TIA was fabricated on the basis of 1-µm emitter-width InP-based heterojunction-bipolar-transistor (HBT) IC technology. Its differential gain is 39 dB, its 3-dB bandwidth is 27 GHz, and its estimated differential transimpedance gain is 73 dBΩ. The obtained output waveform shows that the developed design scheme is effective for suppressing undershoot and ringing.