/ Modular nuclear electronics

PURPOSE Table of ADSs Spectrometric ADCs are intended for measuring amplitudes of pulsed input signals by analogue-to-digital conversion and storing the data in the form of in the form of statistical partitions (spectra) in the internal buffer memory. An ADC with a connected computer and corresponding software makes up a multichannel amplitude analyzer. The family of the developed ADCs provides building of a wide range of multi-channel analyzers to be used in spectrometric systems on the base of various nuclear radiation detectors or other sources of statistically distributed pulse signals. A selection of ADCs with ISA, PCI, CompactPCI, USB and RS 232/485 interfaces allows a measurement system to be made with a computer of the corresponding configuration. As ADCs come with various numbers of inputs (1, 2, 8), it is possible to use one device to make systems with one or several measurement channels. ADCs are designed as cards mounted in PC, modules in "Euromechanics" and NIM designs, and as stand-alone devices (instrument model). CHARACTERISTIC FEATURES highly accurate ADCs with conversion by Wilkinson’s method ADCs with constant time of conversion by successive approximations one or two independent conversion channels one, two, or eight analogue inputs storage of spectra from all inputs in the internal memory (except ADC-4K-LT and ADC-4K-mPC) channel width adjusted by software with a step of 5 µV coincidence/anticoincidence logic built-in ratemeters live-time or real-time exposures Spectrometric ADCs with the PCI, CompactPCI, USB and RS232/485 bus interfaces single mezzanine architecture a motherboard with mezzanine circuit cards connected to it the motherboard comprises a bus interface, a processor with a memory to store spectra, timers, ratemeters, and connectors to connect one or two mezzanines the spectrometric ADC proper is located on the mezzanine circuit card two connected mezzanine circuit cards make up two independent channels various types of ADC mezzanine circuit cards highly accurate, with Wilkinson conversion and channel width adjusted by software with a step of 5 µV with constant conversion time with an 8-input multiplexer( only with PCI interface) Plug-and-Play mode support automatic identification of the mezzanine circuit card connected to the motherboard software-controlled coincidence/anticoincidence logic General information on ADC.pdf (157 Kb) Type of ADC Design Interface Conversion method Conversion frequency (time) Number of inputs Number of converters Resolution Maximum input signal amplitude ADC-1K-2M PC circuit card ISA (16-bit) Wilkinson’ s 100 MHz 2 1 1K 10 V ADC-8K-2M 1K - 8K ADC-4K-LT PC circuit card ISA (8-bit) Wilkinson’ s 50 MHz 1 1 1K - 4K 10 V ADC-4K-mPC Industrial computer ISA (8-bit) ADC-1K-W1 PC circuit card PCI Wilkinson’ s 100 MHz 1 1 1K - 4K 10 V ADC-1K-W2 2 2 1K - 4K ADC-8K-W1 1 1 2K - 8K ADC-8K-W2 2 2 2K - 8K ADC-1K-W8 8 1 1K ADC-8K-SA1 PC circuit card PCI Successive approximations (3.5 µs) 1 1 1K, 2K, 4K, 8K 5 V ADC-8K-SA2 2 2 BPA-03-8K-W1 Euromecha-nics CompactPCI Wilkinson’ s 100 MHz 1 1 2K - 8K 10 V BPA-03-8K-SA1 Successive approximations (3.5 µs) 1K, 2K, 4K, 8K 5 V ADC-USB-8K-W1 Stand-alone USB Wilkinson’ s 100 MHz 1 1 2K – 8K 10 V ADC-USB-8K-SA1 Stand-alone USB Successive approximations (3.5 µs) 1 1 1K, 2K, 4K, 8K 5 V ADC-RS-8K-W1 Stand-alone RS232/485 Wilkinson’ s 100 MHz 1 1 1K – 8K 10 V ADC-RS-8K-SA1 Successive approximations (3.5 µs) 1K, 2K, 4K, 8K 5 V

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