High-Gain (1 kOhm), High-Bandwidth (38 GHz) Transimpedance Amplifier in InP-HBT Technology
2002
A high-gain, high-bandwidth transimpedance amplifier (TIA) in InP-HBT technology is presented. The TIA has differential outputs and a single-ended transimpedance gain of 1 kOhm (2 kOhms differential) at DC. With practical photodiode and interconnect parasitics included, the amplifier has a transimpedance bandwidth of 38 GHz with very flat group delay. The amplifier operates from a single +3.3 V supply and dissipates about 280 mW of power.
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