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Three-channel CMOS transimpedance amplifier for LiDAR sensor receiver
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作者 LIU Ruqing ZHU Jingguo +3 位作者 JIANG Yan LI Feng JIANG Chenghao MENG Zhe 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2024年第1期74-80,共7页
For time-of-flight(TOF)light detection and ranging(LiDAR),a three-channel high-performance transimpedance amplifier(TIA)with high immunity to input load capacitance is presented.A regulated cascade(RGC)as the input st... For time-of-flight(TOF)light detection and ranging(LiDAR),a three-channel high-performance transimpedance amplifier(TIA)with high immunity to input load capacitance is presented.A regulated cascade(RGC)as the input stage is at the core of the complementary metal oxide semiconductor(CMOS)circuit chip,giving it more immunity to input photodiode detectors.A simple smart output interface acting as a feedback structure,which is rarely found in other designs,reduces the chip size and power consumption simultaneously.The circuit is designed using a 0.5μm CMOS process technology to achieve low cost.The device delivers a 33.87 dB?transimpedance gain at 350 MHz.With a higher input load capacitance,it shows a-3 dB bandwidth of 461 MHz,indicating a better detector tolerance at the front end of the system.Under a 3.3 V supply voltage,the device consumes 5.2 mW,and the total chip area with three channels is 402.8×597.0μm2(including the test pads). 展开更多
关键词 transimpedance amplifier(TIA) three-channel regulated cascade(RGC) light detection and ranging(LiDAR)
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Design of 10 Gbit/s burst-mode transimpedance preamplifier for PON systems
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作者 顾皋蔚 朱恩 林叶 《Journal of Southeast University(English Edition)》 EI CAS 2012年第4期398-403,共6页
A 10 Gbit/s burst-mode preamplifier is designed for passive optical networks (PONs). To achieve a high dynamic range and fast response, the circuit is DC coupled, and a feed-back type peak detector is designed to pe... A 10 Gbit/s burst-mode preamplifier is designed for passive optical networks (PONs). To achieve a high dynamic range and fast response, the circuit is DC coupled, and a feed-back type peak detector is designed to perform auto-gaincontrol and threshold extraction. Regulated cascade (RGC) architecture is exploited as the input stage to reduce the input impedance of the circuit and isolate the large parasitic capacitance including the photodiode capacitance from the determination pole, thus increasing the bandwidth. This preamplifier is implemented using the low-cost 0. 13 ixm CMOS technology. The die area is 425 μm × 475 μm and the total power dissipation is 23.4 mW. The test results indicate that the preamplifier can work at a speed from 1.25 to 10.312 5 Gbit/s, providing a high transimpedance gain of 64.0 dBΩ and a low gain of 54. 6 dBl2 with a dynamic input range of over 22.9 dB. The equivalent input noise current is 23. 4 pA/ Hz1/2. The proposed burst amplifier satisfies related specifications defined in 10G-EPON and XG-PON standards. 展开更多
关键词 BURST-MODE passive optical network (PON) transimpedance preamplifier regulated cascade (RGC) peak detector auto-gain-control threshold extraction
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