ASPec-927-Dual-MCB0 pages

ASPEC-927
Dual MCB
ORTEC®
PERFORMANCE
ADCs: Successive-Approximation type with sliding scale
linearization.
MAX RESOLUTION: 16k: 16,384 channels, software
selectable as 16,384, 8,192, 4,096, 2,048, 1,024, and
512.
DEAD TIME PER EVENT: 2 ìs including memory
transfer.
INTEGRAL NONLINEARITY: <+0.025% over the top
99% of the dynamic range.
DIFFERENTIAL NONLINEARITY: <±1% over the top
99% of the dynamic range.
GAIN INSTABILITY: <+50 ppm/°C.
DEAD-TIME CORRECTION: Software selectable for
extended Live-Time correction according to the Gedcke-
Hale method or ZDT Live-Time corrections which
monitors the counting rate and adjusts the dead-time for
fluctuating counting rates.
DATA MEMORY: 512 kb.
USB INTERFACE: Interfaces to a PC via USB 2.0. Data
transfer speed is 480 Mbps maximum.
INPUTS AND OUTPUTS
INPUTS: Accepts positive unipolar,
positive gated integrator, or positive
leading bipolar analog pulses in the
dynamic range from 0 to +10 V; +12 V
maximum; semi-Gaussian-shaped time
constants from 0.25 to 30 ìs, gatedintegrator-
shaped time constants from 3
to 30 ìs, or delay-line-shaped with
widths >0.25 ìs. Zin = 1 kÙ, dc-coupled.
No internal delay, BNC connector.
ADC GATE: Optional TTL input. Computer selectable
Coincidence mode, Anti-coincidence mode, or Off. Signal
must occur prior to and extend 0.5-ìs beyond the peak of
the pulse; BNC connector. Zin = 1 kÙ.
PUR: Pile-up rejection input; accepts TTL signal; signal
must occur prior to peak detect. Zin = 1 kÙ. BNC
connector.
BUSY: Busy input used by live-time correction circuits.
Accepts TTL signal; signal must occur prior to peak
detect. Zin = 1 kÙ. BNC connector.
At Last, an Economical Dual-Input Multichannel Analyzer System
in a Single Width NIM Module.
• Dual fast (1.25-ìs) ADC and memory in a single width NIM
• Dual 16k ADC’s, compatible with MAESTRO-32 for Windows MCA emulation program
• Live time corrections including ZDT
• PUR, BUSY, and GATE inputs
• Interfaces via USB-2.0
• True live display of data
• Synchronize this unit with your sample changer or process control
• On board memory allows fast downloads to your PC
• Two inputs in a single wide NIM
The ORTEC Model ASPEC-927 interfaces to a personal computer via the USB-2.0 interface and
includes MAESTRO-32 emulation software. Each ASPEC-927 is presented in a single width NIM
chassis and includes two independent 16k ADCs, and 512 kb of memory. The successiveapproximation
16,384 channel ADCs with 1.25-ìs conversion time has selectable conversion gain
settings for 8,192, 4,096, 2,048, 1,024, or 512. Dead time corrections can be accomplished using
the Gedcke-Hale Extended Live-Time method or the ZDT method.
A single computer subject to the USB-2.0 speed of data transfer can control multiple units using
USB-2.0 hubs.
Specifications