Search for:
Search:
Menu
Home
Products
Product Lines
Multiscalers, Photon Counters
Multiscaler / TOF MCS8A
Multiscaler / TOF MCS6A
MCCD: Eight output START trigger / master clock source
Adapter and Cables for Multiscalers
Multichannel Scaler MCS4
Multiscaler / TOF P7882
Multiparameter / TOF MPA4T
Multiparameter Systems
Multiparameter MPA4
Multiparameter/TOF MPA4T
MCA4A
Multiparameter MPA-3
Realtime Clock for MPA3
Multichannel Analyzers
MCA4 Series MCA's
MCA4A Series MCA's
Multichannel Analyzer MCA3
Multichannel Anal. MCA8000D
Preamps & Hybrids
Charge Sensitive Preamplifiers
Shaping Amp, Pulse Amp
Testboards
Timing Amplifiers
Special Products
NIM-Moduls
Shaping Amplifier CSA4
Const. Fract. Discriminator 2128
Const. Fract. Discriminator 2128N
Diff. Const. Fract. Discrim. 7029A
Pent Const. Fract. Discrim. 2155
Pulse Shape Discriminator 2160A
Delay-Box 7800-7
Amplifier/Discriminator 7011
Analog Digital Converter 7070
Dual Timing ADC/TDC/SVA 7072T
NIM-BINs
Nuclear Pulse Generators
BNC Model DB-2 Pulse Generator
BNC Model PB-5 Pulse Generator
Pulse & Delay Generators
BNC Model 577 Pulse Generator
BNC Model 575 Pulse Generator
BNC Model 508 Current Pulse Generator
BNC Model 588 1U Rack Mount 8 Channel DDG
BNC Model 6040 Pulse Generator
BNC Model 725 Multi-Trigger Delay Generator
BNC Model 745T Femtosecond Digital Delays with 5 Picosecond Jitter
BNC Model 745T-20C Twenty Channel Digital Delay Generator
BNC Model 525 Six Channel Digital Pulse / Delay Generator
X-Ray Detector Systems
XR-100CR-6-500 X-Ray Detector
XR-100CR-13-500 X-Ray Detector
XR-100CR-25-500 X-Ray Detector
PX5 Digital Pulse Processor
XR-100T-CdTe Gamma-Ray Detector
X-123 X-Ray Spectrometer
EXVC Collimator Kit
Vacuum Applications
DP5 Digital Pulse Processor
Mini-X2 X-Ray Tube System
Analysis Software for XRF-FP
Applications
Applications Overview
Fast Multiscalers
SEMPA
Kinetics Studies
Time-Of-Flight
(TOF) Mass Spectrometry
Electro-Spray Mass Spectrometry
(TOF) Basics
Pulse-width analysis
Multiparameter Systems
Dynamic Analysis PIXE Imaging
Watching chips
Microprobe
X-ray Microprobe and Micro-Tomography
Micro-PIXE analysis
Microprobe for Induced Ion-Effect
Particle Identification
Pulse-width Analysis
ERDA: Elastic Recoil Detection Analysis
SAXS: Small angle scattering of X rays
High Voltage Partial Discharge
Positron Annihilation
Lidar Instrumentation
Photo Ionisation
Support
Support Overview
Upgrades
MPANT for MCA4
MPANT for MPA4
MPANT for MCS8
MPANT for MCS6
MPANT for MPA-3
MPANT for SPA-3
MCDWIN for MCA-3 / P7882
MCDWIN for P7888
MCDWIN for P7887
MCDWIN for P7889
MCDWIN for PCI board P7886
Manuals
Tech Tips
ADC Connection Guide for MPA and MCD Systems
FAQs to MPA-3 Performance
FAQs
FAQs General
FAQs Ultra Fast Multiscalers
FAQs Multiparameter Multichannel Analyzers
FAQs Ultra Fast Photon Counters
FAQs Multichannel Analyzers
FAQs NIM-Modules
FAQs NIM-BINs
FAQs Waveform Digitizers / Transient Recorders
FAQs X-Ray and Gamma Detector Systems
FAQs Preamps, Hybrids and Special Products
FAQs High Voltage Supplies
FAQs Nuclear Pulse Generators
FAQs Pulse & Delay Generators
FAQs DLL Software
FAQs MCA4
Repair
Warranty
Orders outside Europe
Company
About Us
History
International Reps
News
How to find us
Imprint
Data Privacy Statement
Contact
Contact Form
International Reps
How to find us
Search
FAST ComTec Home
Support
Tech Tips
ADC Connection Guide for MPA and MCD Systems
CA008
CA008
Connection of FAST ADC 7072/7072T to MPA-3 or MPA-2
Due to a bug in the firmware of 7072 / 7072T ADCs delivered before Q2/2003, the ENC gating in coincidence mode of the MPA-3 disables the slider in the ADC. This results in strong modulations of spectra with periodicities of 8 and 16 channels. As a quick work-around an ADC cable as shown here may be used. This uses the DENB line that can be set by software to set the ADC ENC permanently to high. Use a "polarity" value of 15 in the mpa3.ini file for the respective ADC. For users of the older MPA/PC (MPA-2) system with MPAWIN software: The corresponding line in the MP.POL file is
1 0 1 1 0 0 0 0
For SPA-3 users: The issue arises only if using the Reject input and if listmode is disabled by setting listver=0 in the spa3.ini file. In this case use this connector and a value polarity=15 for the respective ADC in the SPA3.INI file.
Since March 17, 2003 we have a new firmware for the ADC 7072/7072T that fixes all presently known bugs. If you have such an ADC delivered before, please contact your vendor to send back your ADC to FAST ComTec