A 16-channel CMOS preamplifier for laser ranging radar receivers

Ru-qing Liu; Jing-guo Zhu; Yan Jiang; Meng-lin Li; Feng Li

doi:10.1117/12.2202386

22 October 2015 A 16-channel CMOS preamplifier for laser ranging radar receivers

Ru-qing Liu, Jing-guo Zhu, Yan Jiang, Meng-lin Li, Feng Li

Proceedings Volume 9674, AOPC 2015: Optical and Optoelectronic Sensing and Imaging Technology; 96742M (2015) https://doi.org/10.1117/12.2202386
Event: Applied Optics and Photonics China (AOPC2015), 2015, Beijing, China

Abstract

A 16-channal front-end preamplifier array has been design in a 0.18um CMOS process for pulse Laser ranging radar receiver. This front-end preamplifier array incorporates transimpedance amplifiers(TIAs) and differential voltage post-amplifier(PAMP),band gap reference and other interface circuits. In the circuit design, the regulated cascade (RGC) input stage, Cherry-Hooper and active inductor peaking were employed to enhance the bandwidth. And in the layout design, by applying the layout isolation structure combined with P+ guard-ring(PGR), N+ guard-ring(NGR),and deep-n-well(DNW) for amplifier array, the crosstalk and the substrate noise coupling was reduced effectively. The simulations show that a single channel receiver front-end preamplifier achieves 95 dBΩ transimpedance gain and 600MHz bandwidth for 3 PF photodiode capacitance. The total power of 16-channel front-end amplifier array is about 800mW for 1.8V supply.

Citation Download Citation

Ru-qing Liu, Jing-guo Zhu, Yan Jiang, Meng-lin Li, and Feng Li "A 16-channel CMOS preamplifier for laser ranging radar receivers", Proc. SPIE 9674, AOPC 2015: Optical and Optoelectronic Sensing and Imaging Technology, 96742M (22 October 2015); https://doi.org/10.1117/12.2202386

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