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Product Name: CO4020 Quad 4-Input Logic Unit
Product Description
General-purpose logic module for AND, OR, Veto, Fan-Out, and Gating functions
Four independent channels
Overlap outputs and adjustable-width outputs
3-ns overlap resolution
TTL and fast negative NIM outputs
The ORTEC Model CO4020 Quad 4-Input Logic Unit has the flexibility to satisfy the logic requirements of most coincidence experiments without additional logic modules. The logic functions it can perform are: coincidence (AND), anticoincidence (veto), fan-in (OR), fan-out, fast negative NIM-to-TTL conversion, and pulse lengthening. The Model CO4020 contains four identical, independent channels of 4-input logic in a single-width NIM module.
Each of the four inputs (A, B, C, and D) accepts NIM fast negative logic pulses. Front-panel, three-position slide switches select the logic requirements separately for each input. The various combinations of logic functions that can be implemented are illustrated in Fig. 1 and in the specifications for the control switches.
The X output is a NIM fast negative logic pulse whose width is determined by the width and overlap of the active input pulses. The complement of the X output is available at the output. The updating Y outputs can be set to trigger on either the leading edge or the trailing edge of the X output pulse. The width of the Y outputs can be adjusted from 40 ns to 4 0 µs in two selectable ranges. Two of the Y outputs provide NIM fast negative logic pulses. The third Y output delivers a positive TTL logic pulse that is suitable for gating ADCs and multichannel analyzers. Front-panel LEDs indicate which channel is generating an output.
Company Details
From its inception as a small enterprise founded by scientists and engineers from the Oak Ridge National Laboratory, our business and reputation for excellence in scientific instrumentation have grown substantially. Along with that growth came... more
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