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A 3-stage distributed T/H amplifier (DTHA) is presented for high-bit-rate optical receivers and millimeter-wave radios. Distributed topology enhances the bandwidth of the DTHA to >42GHz in track mode. The DTHA achieves 2-tone SFDR of 46dB with 15GHz input signal. The 1.47mm2 chip designed in a 0.18μm SiGe BiCMOS process dissipates 640mW.
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