Coincidence/Logic/Trigger Units

Digital

Photo of Coincidence/Logic/Trigger Units

The Coincidence / Logic / Trigger Units family provides flexible tools for building trigger and logic architectures in nuclear and particle physics experiments. These modules enable the implementation of coincidence, majority, AND/OR logic, fan-in/fan-out distribution, and signal translation functions while maintaining precise timing and low propagation delay.

Designed for both fixed-function and programmable use cases, the family includes compact NIM and VME modules as well as fully configurable FPGA-based platforms. They allow users to combine and process detector signals, generate triggers, and implement complex logic chains with support for multiple logic standards and configurable output widths. With modular architectures and scalable channel counts, these units can be used from simple coincidence setups to advanced multi-detector trigger systems.

  • Coincidence, majority, AND/OR logic and fan-in/fan-out capabilities

  • Support for NIM, TTL, ECL and mixed-signal environments

  • Adjustable output widths, veto inputs and low propagation delay

  • Programmable FPGA-based platforms for custom trigger and logic implementation

Coincidence/Logic/Trigger Units Models

Grid Compare
N405

N405

  • Three independent sections with 4 standard NIM inputs each

  • AND, OR, MAJORITY function selectable for each section

  • One auxiliary NIM output per section whose width is equal to the coincidence duration
DT1081B
New

DT1081B

  • Handy Desktop form factor

  • Wide range of user-selectable functionalities: logic functions, counting, timing, digital pulse generator

  • 4 independent sections, each with:

    • 6 NIM/TTL/ANALOG input
DT1082
Coming Soon

DT1082

  • Handy Desktop form factor

  • Wide range of user-selectable functionalities: logic functions, counting, timing, digital pulse generator

  • 4 independent sections, each with:

    • 6 NIM/TTL/ANALOG input
DT5495

DT5495

  • User Programmable FPGA

  • Compact Desktop form factor

  • Up to 162 inputs, up to 130 outputs
N1082
Coming Soon

N1082

  • Double-width NIM unit

  • Wide range of user-selectable functionalities: logic functions, counting, timing, digital pulse generator.

  • 4 independent sections, each with:

    • 6 NIM/TTL/ANALOG input
N455

N455

  • 4 identical independent sections

  • Two inputs per section

  • 130 MHz Max input frequency
N408

N408

  • 24 DC-coupled Std. NIM inputs

  • 50 MHz maximum input frequency

  • Majority level settable via front panel trimmer
V976

V976

  • Four independent sections with four channels each

  • TTL and NIM inputs automatically detected

  • NIM/TTL selectable output level
N1081B

N1081B

  • Double-width NIM unit

  • Wide range of user-selectable functionalities: logic functions, counting, timing, digital pulse generator.

  • 4 independent sections, each with:

    • 6 NIM/TTL/ANALOG input
V2495

V2495

  • User customisable FPGA Unit

  • LVDS/ECL/PECL inputs (differential)

  • 64 inputs, expandable to 162 (with 32 outputs)
N113

N113

  • 2 independent OR sections, 12 inputs each

  • 1 GATE signal per section

  • Cascadeable sections
Image
Name
Package
Function
Inputs per Section
Outputs per Section
I/O Delay (ns)
Input Bandwidth (MHz)
Majority
Strobe/ Veto
Connectors
No. of Sections
N405

N405

NIM

Logic Unit

4 NIM

2+/1 NIM, NIM Linear

< 14

100

Yes

yes

LEMO

3
DT1081B
New

DT1081B

Desktop

Programmable Logic Unit

6 NIM/TTL

4 NIM/TTL

20

n.a.

Yes

Yes

LEMO

4
DT1082
Coming Soon

DT1082

Desktop

Open FPGA

6 NIM/TTL

4 NIM/TTL

20

n.a.

Yes

Yes

LEMO

4
DT5495

DT5495

Desktop

Programmable Trigger Unit FPGA: Cyclone V 5CGXC4 (50 K LEs)

64 ECL/ PECL/ LVDS+2 bidirectional NIM/TTL (expandable up to 162)

32 LVDS+2 bidirectional NIM/TTL (expandable up to 130)

n/a

Section A/B: 200, Section C/D: 250

Yes

Yes

Robinson Nugent Flat/LEMO

1
N1082
Coming Soon

N1082

NIM

Open FPGA

6 NIM/TTL

4 NIM/TTL

20

n.a.

Yes

Yes

LEMO

4
N455

N455

NIM

OR / AND

2 NIM

3+/1 NIM, 1 NIM Overlap

< 16

130

No

Yes

LEMO

4
V976

V976

VME

Logic Unit

4 NIM/TTL

4 NIM/TTL

< 9

150

Yes

No

LEMO

4
N1081B

N1081B

NIM

Programmable Logic Unit

6 NIM/TTL

4 NIM/TTL

20

n.a.

Yes

Yes

LEMO

4
V2495

V2495

VME

Programmable Trigger Unit FPGA: Cyclone V 5CGXC4 (50 K LEs)

64 ECL/ PECL/ LVDS+2 bidirectional NIM/TTL (expandable up to 162)

32 LVDS+2 bidirectional NIM/TTL (expandable up to 130)

n/a

Section A/B: 200, Section C/D: 250

Yes

Yes

Robinson Nugent Flat/LEMO

1
N113

N113

NIM

OR

12 NIM

2 NIM

< 10

130

No

Yes

LEMO

2