An integrated 9×9 SPAD array with a 10-channel TDC and a CMOS laser diode driver for a wearable time-domain diffuse optics optode
A 9×9 Single-Photon Avalanche Photodiode (SPAD) array with a 10-channel time-to-digital converter and an integrated laser diode driver fabricated in 0.35 μm […]
Enhancing Nutt-Based Time-to-Digital Converter Performance with Internal Systematic Averaging
A time-to-digital converter (TDC) often consists of sophisticated, multilevel, sub-gate delay structures, when time intervals need to be measured precisely. The resolution […]
A CMOS Receiver–TDC Chip Setfor Accurate Pulsed TOF Laser Ranging
An integrated receiver-TDC (time-to-digital converter) chip set is developed for pulsed time-of-flight (TOF) laser rangefinding. The receiver detects the current pulse from […]
256 x TDC Array With Cyclic Interpolators Based on Calibration-Free 2x Time Amplifier
This paper presents the design of a CMOS time-to-digital converter (TDC) used in a direct time-of-flight laser radar line receiver consisting of […]
A CMOS chip set for accurate pulsed time-of-flight laser range finding
A laser rangefinder device based on pulsed time-of-flight (TOF) distance measurement techniques was constructed and tested. Key blocks of the system are […]