Aspect SPC
About the companyServicesContactsCertificates News     russian  
-Products-
Radiation Monitors and Systems
Dosimetry and radiometry
Nuclear radiation detectors
PC-based MCA
Modular nuclear electronics
Nuclear radiation spectrometers
Inspection systems
Shielding screens
Dedicated equipment
Software

PCI-Wilkinson
PCI-SA
CompactPCI
USB-Wilkinson
USB-SA
BPA-04 Amplitude to digital converter
BPA-04N Amplitude to digital converter

To main page / Modular nuclear electronics / Amplitude-to-digital converters ADC

AMPLITUDE-TO-DIGITAL CONVERTER ADC-1K-W1(-W2, -W3), ADC-8K-W1(-W2)

INTERFACE OF BUS PCI
WILKINSON’ S CONVERSION METHOD

BASIC CONFIGURATIONS
Type
Number of inputs  
Number of converters
Resolution (number of channels)
Connectors
Type
Purpose
ADC-1K-W1
(foto)
1
1
1K - 4K  
BNC
Analogue input
DB9
Logical inputs, +12 V output
ADC-1K-W2
(foto)
2
2
1K - 4K
DB9 (two items)
Analogue and logical inputs, +12 V output
ADC-8K-W1
(foto)
1
1
2K - 8K
BNC
Analogue input
DB9
Logical inputs, +12 V output
ADC-8K-W2
(foto)
2
2
2K - 8K
BNC (two items)
Analogue inputs
DB15
Logical inputs
ADC-1K-W8
(foto)
8
1
1K
DB19
Analogue inputs
DB9
Logical inhibit inputs

- The number of spectra stored in the memory is equal to the number of inputs.

- Detector units can be connected to the ADC-1K-W1/2 and ADC-8K-W1 through the DB9 connectors (analogue signals are received and +12 V power is put out through these connectors).

BASIC DATA
Conversion method Wilkinson’ s
Conversion clock frequency 100 MHz
Analogue input signal Polarity Positive
Amplitude 50 mV - 10 V
Rise time > 0.25 µs
Decay time < 100 µs
Input resistance 2 k Ω
Differencial nonlinearity (DNL) < 1 %
Integral nonlinearity (INL) <0.04 %
Software-adjusted channel widths with adjustment step 5 µV
Channel width setting accuracy 5 %
Temperature instability of channel width < 0.01 %
Channel memory capacity 224-1
Real/live time setting accuracy 5 ms
Lower-level discriminator threshold range 30 mV - 10 V (50 mV - 5 V for ADC-1K-W8)
Upper-level discriminator threshold range 100 mV - 10 V
“Ratemeter” input - logical signal with frequency up to 300 kHz +
* “Inhibit” input with programmable polarity +
Overall dimensions 180x110 mm

* except ADC-1K-W8.

RESOLUTION, CHANNEL WIDTH AND NONLINEARITY
Type Channel width Resolution (of channels) Tipical values of nonlinearities
INL DNL
ADC-1K-W1/W2 10 mV - 2.5 mV 1K - 4K 0.01 % 0.4 - 0.7 %
ADC-8K-W1/W2 5 mV - 1.25 mV 2K - 8K 0.01 % 0.5 - 0.8 %
ADC-1K-W8 10 mV 1K 0.02 % 0.5 %

Print version

site map e-mail developed by cre8 bureau