Home / Products / Precision Time Measurement / Time-to-Digital Converters / AS6500 Time-to-Digital Converter

Features

  • 4 stop channels with 20 ns pulse-to-pulse spacing
    2 combined channels with 5 ns pulse-to-pulse spacing
  • Maximum 1.5 MSPS via SPI
  • Single shot accuracy 20 ps RMS resolution per channel, 10 ps RMS with high resolution option
  • Unlimited measuring range 0s to 16s
  • Differential reference clock input 2 MHz to 12.5 MHz, optional with quartz
  • Inputs CMOS level, 16-stage FIFO per channel, readout with SPI, used also for configuration
  • Automatic calibration to reference clock
  • Supply voltage 3.3 V
  • Power dissipation 60 mW, standby current 60 μA
  • QFN40 package (6 mm × 6 mm)

Benefits

  • Simple data post-processing thanks to calibrated results
  • Event assignment thanks to reference clock
  • Index simplifies coincidence measurements
  • Easy pulse width measurements
  • High efficiency thanks to high sample rate
  • Compact design thanks to small package and low number of external components
  • Reduced cooling thanks to low power consumption

Product parameters

Channels
4
Inouts
CMOS
Resolution [ps]
20
Pulse-Pair Resolution [ns]
20
Measurement Rate [MSPS]
1.5
Multi-Hit Capability
Yes
Operating Supply Range [V]
3.3
Interface
SPI
Ambient Temperature Range [°C]
-40 to 125
Package
QFN40

Applications

  • Time-of-Flight Measurement
  • Drones
  • Laser Rangefinders
  • LIDAR