论文信息 - 124dB⋅Hz⅔ Dynamic range transimpedance amplifier for electronic-photonic channelizer

124dB⋅Hz⅔ Dynamic range transimpedance amplifier for electronic-photonic channelizer

In this paper, we present a transimpedance amplifier (TIA) based on common-source feedback (CSFB) for use in a hybrid electronic-photonic microwave channelizer. The topology demonstrates improved linearity over conventional techniques, while maintaining comparable gain, bandwidth, and noise. This approach is implemented, fabricated, and tested in 180 nm CMOS. Performance metrics demonstrated include a transimpedance gain of 64 dBOmega, 2GHz bandwidth, input referred noise current of 4.2 pA/Hz1/2 , and 5.8 dBm IP3. The circuit shows 124dBHz2/3 of spurious-free dynamic range.

Alyssa B. Apsel | Anthony Kopa

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