Teledyne SP Devices
  • Home
  • SP Devices Newsletter - Issue 4 2018

Advanced time domain measurements with ADQ7
The Advanced Time Domain firmware option, FWATD, equips the ADQ7 digitizer with advanced tools for sophisticated time domain measurements. Multiple steps of noise suppression is provided in order to achieve extreme dynamic range so that rarely occurring weak signals can be detected and distinguished from the noise.

FWATD can track and correct for temperature-dependent baseline (DC-level) fluctuations which may otherwise lead to incorrect detection of false pulses.

ADQ7 is available in industry standard form factors. USB3 shown above.
It also supports several types of noise reduction both for random and systematic noise and this helps improve the dynamic range even further. The flexible architecture and user-defined settings makes it easy to tailor noise reduction for any application. The block diagram below illustrate the architecture of FWATD.
FWATD-block-diagram 3
FWATD provide several stages of noise reduction performed in real-time inside the on-board FPGA on ADQ7.
  • Prior knowledge about the input signal can be used to tailor the data capture and improve the dynamic range:
    • Programmable DC-offset allows unipolar signals to utilize the entire input range of the digitizer.
    • Teledyne SP Devices’ proprietary Digital Baseline Stabilizer (DBS) track baseline fluctuations and adjust the baseline to a user-defined target value. This ensures that pulse amplitude is accurately determined and increase sensitivity of the system.
    • A frequency-selective digital filter helps reduce noise for input signals with known limited bandwidth without loss of signal information.
  • Waveform averaging (WFA) helps reduce random noise via repeated measurements. WFA supports unrivalled waveform lengths of over 2 million samples.
  • The non-linear advanced threshold operation with filter is a complement to the succeeding WFA, tailored for rarely occurring weak pulses.
  • DBS suppresses systematic noise such as pattern noise originating from time-interleaved ADCs.
To learn more please refer to our application note about advanced time domain measurements using the ADQ7.
  • Scientific instruments
  • Time-of-flight
  • Mass spectrometry
  • Electron paramagnetic resonance
  • Particle physics experiments
  • Test & measurements
  • Distributed fiber sensing


Meet us at these upcoming events!

7th MicroTCA Workshop for Industry & Research
Sign Up for Our Newsletter and Read Previous Issues Online
More News 
facebook 2 linkedin twitter 2 youtube
Teledyne Signal Processing Devices Sweden AB, Teknikringen 6, SE-583 30 Linkoping, Sweden
Copyright © 2004-2018, Teledyne Signal Processing Devices Sweden AB. All rights reserved.
Names used herein may be trademarks of their respective owners.

"The technical and intellectual support from the team at Teledyne SP Devices has been playing an important role in our research."

Associate Professor at Hong Kong University (HKU)
who has implemented a system supporting line scan rates of 10M lines/s

Send us an email, call our headquarters or check our Contact page to find your local sales representative.
Email Us 
Sign up for our newsletter and stay up-to-date on new products and updates.
Sign Up For Newsletter 
ISO logo

We use cookies on our website. Some of them are essential for the operation of the site, while others help us to improve this site and the user experience (tracking cookies). You can decide for yourself whether you want to allow cookies or not. Please note that if you reject them, you may not be able to use all the functionalities of the site.