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

Anthony Kopa, Alyssa Apsel

Open publisher page 3 citations

Abstract

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 124dBHz2/3of spurious-free dynamic range.

About this research paper

What this paper is about

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 124dBHz2/3of spurious-free dynamic range.

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OpenAlex reports 3 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

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 124dBHz2/3of spurious-free dynamic range.

Key concepts: Transimpedance amplifier, Dynamic range, Bandwidth (computing), Linearity, CMOS, Amplifier, Spurious relationship, Physics

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