Home / Products / Precision Time Measurement / AS6501 Time-to-Digital Converter

Features

  • 2 stop channels with 5 ns / 20 ns pulse-to-pulse spacing
  • Maximum 70 MSPS per LVDS output
  • Event assignment thanks to reference clock & index simplifies coincidence measurements
  • Single shot accuracy 20 ps RMS resolution per channel, 10 ps RMS with high resolution option
  • Easy pulse width measurements
  • Unlimited measuring range 0s to 16s
  • High efficiency thanks high sample rate
  • Differential reference clock input 2 MHz to 12.5 MHz, optional with quartz
  • Compact design thanks to small package and low number of external components
  • LVDS inputs and outputs, 16-stage FIFO per channel, SPI compatible 4-wire interface for configuration, optionally to be used for data readout
  • Reduced cooling thanks to low power consumption
  • Automatic calibration to reference clock
  • Supply voltage 3.3 V
  • Power dissipation up to 450 mW, standby current 60 μA
  • QFP48 package (7 x 7 mm², 9 × 9 mm² with leads)

 

Benefits

  • Simple data post-processing thanks to calibrated results

 

Product parameters

Channels
2
Inputs
LVDS / CMOS
Resolution [ps]
10
Pulse-Pair Resolution [ns]
5
Measurement Rate [MSPS]
70
Multi-Hit Capability
Unlimited
Operating Supply Range [V]
2.4 to 3.6
Interface
LVDS / SPI
Ambient Temperature Range [°C]
-40 to 125
Package
QFP48

Applications

  • Laser rangefinders
  • Automated test equipment
  • Medical imaging
  • ToF spectroscopy