This paper presents a high bandwidth and low noise fully differential main amplifier (FDMA) for pulsed time-of-flight (TOF) imaging laser detection and ranging application (LADAR), which serves to amplify the small pulse echo signal. The cascaded architecture and active inductor technology are used to enlarge the bandwidth of the circuit and reduce the chip area. The cascaded gain stages, which adopted DC offset isolation circuit, are more robust to the alteration of process. A large bandwidth amplifier (LBA) and an output buffer (OB) structure have been designed to enhance the drive capabilities. Besides, in order to adapt the demand of the LADAR system, the amplifier receiver's bandwidth has been limited by using an inter-stage bandpass filter. Implemented in CSMC CMOS technology, the FDMA chip realizes the -3 dB bandwidth of 730.6 MHz, and an open loop gain of 23.5 dB with the bandpass filter worked. The input-referred noise voltage is 2.7 nV/sqrt(Hz), which effectively reduces the system noise. This chip that occupies 0.25 mmc×0.25 mm in area consumes a power dissipation of 102.3 mW from the 3.3 V power supply. As a part of the integrated chip of the laser radar system, it can better meet the requirements of system.
A high-performance CMOS FDMA for pulsed TOF imaging LADAR system
First published at:Jul 01, 2019
1 Williams G M. Optimization of eyesafe avalanche photodiode lidar for automobile safety and autonomous navigation systems[J]. Optical Engineering, 2017, 56(3): 031224. DOI:10.1117/1.OE.56.3.031224
2 Zheng H, Ma R, Zhu Z M. A linear and wide dynamic range transimpedance ampliﬁer with adaptive gain control technique[J]. Analog Integrated Circuits and Signal Processing, 2017, 90(1): 217-226. DOI:10.1007/s10470-016-0867-1
3 Behroozpour B, Sandborn P A M, Wu M C, et al. Lidar system architectures and circuits[J]. IEEE Communications Magazine, 2017, 55(10): 135-142. DOI:10.1109/MCOM.2017.1700030
4 Cho H S, Kim C H, Lee S G. A high-sensitivity and low-walk error LADAR receiver for military application[J]. IEEE Transactions on Circuits and Systems I: Regular Papers, 2014, 61(10): 3007-3015. DOI:10.1109/TCSI.2014.2327282
5 Zheng H, Ma R, Liu M L, et al. High sensitivity and wide dynamic range analog front-end circuits for pulsed TOF 4-D imaging LADAR receiver[J]. IEEE Sensors Journal, 2018, 18(8): 3114-3124. DOI:10.1109/JSEN.2018.2809795
6 Ngo T H, Kim C H, Kwon Y J, et al. Wideband receiver for a three-dimensional ranging LADAR system[J]. IEEE Transactions on Circuits and Systems I: Regular Papers, 2013, 60(2): 448-456. DOI:10.1109/TCSI.2012.2215800
7 McDonough R N, Whalen A D. Detection of Signals in Noise[M]. 2nd ed. San Diego, CA, USA: Academic, 1995.
8 Ruotsalainen T, Palojarvi P, Kostamovaara J. A wide dynamic range receiver channel for a pulsed time-of-flight laser radar[J]. IEEE Journal of Solid-State Circuits, 2001, 36(8): 1228-1238. DOI:10.1109/4.938373
9 Zheng H, Ma R, Liu M L, et al. A linear dynamic range receiver with timing discrimination for pulsed TOF imaging LADAR application[J]. IEEE Transactions on Instrumentation and Measurement, 2018, 67(11): 2684-2691. DOI:10.1109/TIM.2018.2826860
10 Liu J B, Gu M, Chen H D, et al. A CMOS front-end circuit for sonet oc-96 receiver[C]//2006 International Conference on Communications, Circuits and Systems, Guilin, China, 2006, 3: 1961-1965.
11 Huang H Y, Chien J C, Lu L H. A 10-Gb/s inductorless CMOS limiting amplifier with third-order interleaving active feedback[J]. IEEE Journal of Solid-State Circuits, 2007, 42(5): 1111-1120. DOI:10.1109/JSSC.2007.894819
12 Hu Y, Wang Z G, Feng J, et al. 5Gb/s 0.25μm CMOS limiting amplifier[J]. Chinese Journal of Semiconductors, 2003, 24(12): 1250-1254.
13 Xue Z F, Li Z Q, Wang Z G, et al. A low noise, 1.25Gb/s front-end amplifier for optical receivers[J]. Chinese Journal of Semiconductors, 2006, 27(8): 1373-1377.
14 Wang Y J, Khan M Z, Raut R. A fully differential CMOS limiting amplifier with active Inductor for optical receiver[C]//Canadian Conference on Electrical and Computer Engineering, Saskatoon, Canada, 2005: 1751-1754.
15 Zheng R. 15 Gb/s CMOS monolithic parallel front-end amplifier for optical receiver design[D]. Nanjing: Southeast University, 2005.
16 Liang B L, Kwasniewski T, Wang Z G, et al. A monolithic 10-Gb/s CMOS limiting amplifier for low cost optical communication systems[C]//Proceedings of APCC2008, Tokyo, Japan, 2008.
17 Kurtti S, Kostamovaara J. Laser radar receiver channel with timing detector based on front end unipolar-to-bipolar pulse shaping[J]. IEEE Journal of Solid-State Circuits, 2009, 44(3): 835-847. DOI:10.1109/JSSC.2008.2012364
18 Ahmed M G, Talegaonkar M, Elkholy A, et al. A 12-Gb/s -16.8-dBm OMA sensitivity 23-mW optical receiver in 65-nm CMOS[J]. IEEE Journal of Solid-State Circuits, 2018, 53(2): 445-457. DOI:10.1109/JSSC.2017.2757008
Supported by the National Science Foundation of Youth Fund (61605216)
Get Citation: Jiang Yan, Liu Ruqing, Zhu Jingguo, et al. A high-performance CMOS FDMA for pulsed TOF imaging LADAR system[J]. Opto-Electronic Engineering, 2019, 46(7): 190194.