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Delays, Gate and Delay Generators, Logic Modules, and Linear Gates Selection Guides

These charts are intended as selection guides only. For complete and precise specifications, consult the data sheet for each model.

Delay Selection Guide
Model DB463 Delay Box 425A Nanosecond Delay
Type of Signal Analog or logic Analog or logic
Number of Duplicate Channels 4 1
Delay Range per Channel 0 to 63.5 ns 2 to 65 ns
Minimum Delay Adjustment 0.5 ns 1 ns

 

Gate and Delay Generator Selection Guide
Model GG8020 Octal Gate and Delay Generator 416A Gate and Delay Generator
Number of Duplicate Channels 8 1
Module Width NIM-1 NIM-1
Input Fast negative NIM logic pulse Slow positive NIM, or fast negative NIM logic pulse
Output Fast negative NIM and TTL logic pulses Positive and negative delayed outputs with amplitude adjustable from 2 to 10 V; delay period (+5 V); delay marker (fast negative NIM)
Output Delay <70 ns to >10  µs 100 ns to 110 µs
Output Width <70 ns to >10 µs 400 ns to 4 µs

 

Logic Module Selection Guide
Model CO4020 Quad, 4-Input
Logic Unit
414A Fast Coincidence 418A Universal Coincidence
Number of Duplicate Channels 4 1 1
Module Width NIM-1 NIM-2 NIM-1
Logic Functions AND, OR AND, anti-coincidence Majority AND, NAND
Number of Inputs per Channel 4 3 5
Input Level Fast negative NIM Slow positive NIM Slow positive NIM
Outputs TTL and Fast negative NIM Slow positive NIM Slow positive NIM
Special Features Adjustable output widths Adjustable resolving time widths Majority logic

 

Linear Gate Selection Guide
Model 426 Linear Gate 542 Linear Gate and Stretcher
Input Pulse Amplitude Range +200 mV to +10 V +100 mV to +10 V
Minimum and Maximum Rise Time <0.3 µs to dc 0.1 to 10 µs
Input Coupling ac-coupled with passive, symmetric BLR; can be dc-coupled dc-coupled, or ac-coupled with active BLR
Output Reshaping None Input peak amplitude stretched and gated out as a rectangular output pulse
Gating Functions Pulse pass, pulse inhibit, dc inhibit Normally open, coincidence, anti-coincidence, external strobe