A transimpedance preamplifier and a modulator driver used in a 20Gbit/s fibre-optic TDM transmission system are presented. The ICs were fabricated in an advanced SiGe bipolar technology. The amplifier is noted for its high gain (58 dB Omega) and low equivalent input noise current density (similar or equal to 12pA/root Hz) and the driver for its high output voltage swing (2.3 V single-ended, 4.6 V differential).
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Elect & Telecommun Res Inst, Semicond Technol Div, Taejon 305600, South KoreaElect & Telecommun Res Inst, Semicond Technol Div, Taejon 305600, South Korea
Ryum, BR
Han, TH
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Elect & Telecommun Res Inst, Semicond Technol Div, Taejon 305600, South KoreaElect & Telecommun Res Inst, Semicond Technol Div, Taejon 305600, South Korea
Han, TH
Cho, DH
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Elect & Telecommun Res Inst, Semicond Technol Div, Taejon 305600, South KoreaElect & Telecommun Res Inst, Semicond Technol Div, Taejon 305600, South Korea
Cho, DH
Lee, SM
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Elect & Telecommun Res Inst, Semicond Technol Div, Taejon 305600, South KoreaElect & Telecommun Res Inst, Semicond Technol Div, Taejon 305600, South Korea