The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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1-Gb/s Readout Amplifier Array for Panoramic Scan LADAR Systems

파노라믹 스캔 라이다용 1-Gb/s 리드아웃 증폭기 어레이

  • Kim, Dayeong (Dept. of Electronics Engineering, Ewha Womans University) ;
  • Park, Sung Min (Dept. of Electronics Engineering, Ewha Womans University)
  • Received : 2016.01.07
  • Accepted : 2016.02.11
  • Published : 2016.03.01
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Abstract

In this paper, a dual-channel readout amplifier array is realized in a standard $0.18{\mu}m$ CMOS technology for the applications of panoramic scan LADAR systems. Each channel consists of a PIN photodiode with 0.9 A/W responsivity and a 1.0 Gb/s readout amplifier(ROA). The proposed ROA shares the basic configuration of the previously reported feedforward TIA, except that it exploits a replica input to exclude a low pass filter(LPF), thus reducing chip area and improving integration level, and to efficiently reject common-mode noises. Measured results demonstrate that each channel achieves $70dB{\Omega}$ transimpedance gain, 829 MHz bandwidth, -22 dBm sensitivity for $10^{-9}BER$, -34 dB crosstalk between adjacent channels, and 45 mW power dissipation from a single 1.8 V supply.

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References

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