The ORTEC GG8020 Octal Gate and Delay Generator hardware manual provides specifications, installation, operation, safety, and warranty information.
The ORTEC GG8020 Octal Gate and Delay Generator is a NIM‑module that offers eight independent gate and delay channels for fast negative‑logic pulse applications. Each channel allows adjustable delay and pulse width, with both NIM and TTL outputs, making it suitable for gating ADCs, coincidence modules, and timing instruments.
This hardware manual covers safety instructions, warranty terms, detailed specifications, control settings, input and output connections, electrical and mechanical requirements, installation steps, and operating procedures. It also includes wiring diagrams, jumper settings, and adjustment instructions for fine‑tuning delay and width.
| Number of identical channels | 8 |
|---|---|
| Output delay range | <70 ns to >1000 ns, or <0.4 to >10 µs |
| Output pulse width range | <70 ns to >1000 ns, or <0.4 µs to >10 µs |
| Temperature coefficient | <0.04%/°C from 0 to 50°C |
| Dead time | Delay + pulse width + 20 ns |
| Delay jitter | <0.04% of selected delay |
| Input minimum amplitude | 600 mV |
| Input minimum width | 10 ns |
| Output typical current | 16 mA (800 mV into 50 Ω) |
| TTL output voltage | +4 V into 50 Ω load |
| Power required | +6 V at 150 mA, –6 V at 2 A |
| Weight | 1.3 kg |
| Dimensions | 3.43 cm × 22.13 cm (single‑width NIM module) |
ORTEC warrants the instrument for one year from the date of delivery.
The GG8020 has eight identical gate and delay channels.
It requires +6 V at 150 mA and –6 V at 2 A from a standard NIM bin and power supply.
Delay and width are set with front‑panel 12‑turn screwdriver adjustments and selected via jumpers on the printed wiring board.