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TDC-GPX High-End Time-to-Digital Converter

High-end multipurpose 8-channel time-to-digital converter


  • Resolution down to 10ps (rms)
  • 40MHz data rate per chip, 200MHz peak
  • LVTTL or LVPECL inputs
  • Up to 8 channels with multi-hit capability
  • 5.5ns pulse pair resolution


  • Suited for high-end applications
  • Allows for highest measurement rates
  • Meets best in class resolution requirements
  • Enables compact designs (available in two package sizes)

Product parameters

Channels 8
Resolution [ps] 10
Pulse-Pair Resolution [ns] 6
Measurement Rate [MSPS] 200 (peak)
Multi-Hit Capability Unlimited
Operating Supply Range [V] 2.3 to 3.6
Interface 28-bit parallel
Ambient Temperature Range [°C] -40°C to +125°C
Package TQFP100

General Description

The TDC-GPX is our flagship component for high-end applications such as medical PET scanners, mass spectroscopy, laser range finder or automated test equipment. The GPX' architecture is designed for best single-shot resolution, best pulse-pair resolution and highest measurement rates. The four possible operation modes and up to 8 channels (with 32-fold multi-hit capability) with resolution down to 10 ps (rms) make it the perfect device for industrial, medical and scientific applications in which highest performance and precision are required.

This product suits for the following applications:

  • Mass spectroscopy
  • Medical imaging
  • Time-of-Flight (ToF) measurement
  • Automated test equipment (ATE)
  • Laser scanner, laser range finder

Technical Documents

Name Type Description Version Language
TDC-GPX_AN000513_1-00.pdf Application Note TDC-GPX reduced decoupling 1-00 English
TDC-GPX_AN000512_1-00.pdf Application Note TDC-GPX Resolution adjust 1-00 English
TDC-GPX_BD000308_1-00.png Block Diagram TDC-GPX Block Diagram 1-00 English
TDC-GPX_DS000321_1-00.pdf Datasheet Document version 2008-Jan 1-00 English

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