⚡ 本页包含 AI 生成的分析内容，仅供参考
该论文提出了一种用于汽车激光雷达的电流域模拟前端，实现4GS/s采样率和80dB动态范围，支持相位编码脉冲压缩直接飞行时间检测。解决了传统电压域AFE在高速高动态范围下的功耗和线性度限制。
Ken Wojciechowski, Christoph Lang Robert Bosch, Sunnyvale, CA LiDARs enable long-distance ranging at high spatial resolution and moderate computational effort. Pulsed-LiDARs measuring the direct-time-of-flight (dTOF) perform close to the automotive requirements [1,2]. They detect the reflection of narrow (<10ns) and high-optical-power (~50W) TX laser pulses with their RX often employing photo-detectors (e.g. APDs), high-speed TIAs and ADCs [3,4]. With the shot noise due to background light, their range enhancement requires higher power pulses, but eye safety limits the TX energy, requiring narrower pulses. The laser driver’s faster rise time at higher currents (more EMI), the TIA’s higher BW (adding noise) and the ADC’s higher sample-rates, add cost and complexity. This paper introduces a dTOF LiDAR current-domain AFE (CurAFE) that enables pulse compression for better trade-offs. The 5pA/√Hz CurAFE detects
Mahdi Kashmiri, Behnam Behroozpour, Vladimir Petkov,