Model 765 | 800 MHz 70ps Fast Rise Time Pulse Generator
The Model 765 delivers ultra-high-speed, precision pulse generation with exceptional rise/fall times, ideal for demanding applications requiring minimal distortion and picosecond-level control.
- Up to 800 MHz pulse frequency
- Standard rise/fall time: 70 ps
- HV (high-voltage) option: 400 ps ultra-fast rise/fall times
- Programmable pulse amplitude and baseline offset
- Minimum pulse width: 300 ps
- Delay & pulse width resolution: 10 ps
- Jitter: <25 ps RMS
- 4 independent output channels with fully independent timing
- Advanced sequences: Double pulse, quad pulse, and more
- Gesture-ready touchscreen GUI + push-buttons & rotary encoder for fast setup
- Improved analog front end: Minimal overshoot and ringing
Perfect for high-speed testing, photonics, semiconductor characterization, radar simulation, and precision timing research.
Applications
- Radar and Sonar Systems
- Semiconductors and Lasers
- High Precision Timing
- Big Physics (Photomultiplier and Colliders)
- High-Speed Detectors and Comparators
- Strips Silicon Emulation
- Mass Spectroscopy
Features
- Fast Rise and Fall Time < 70 ps (20%-80%)
- 300 ps to > 7 secs Pulse Width
- 800 MHz Rep Rate per channel with 4 ps RMS Jitter
- 2 or 4 Independent Channels
- 10 ps Resolution for Width and Delay
- Adjustable Pulse Amplitude from 10 mVpp to 5 Vpp
- ± 2.5 V Adjustable Baseline offset
| 765 | 765-HV | |
| Channels | 2 or 4 Independent Channels | 1 or 2 Independent Channels |
| Pulse Period | Range: 5ns to 8 sec. Resolution: 10 ps Jitter: 4 ps |
Range: 5 ns to 8 sec. Resolution: 10 ps Jitter: 15 ps |
| Max Pulse Frequency | 800 MHz (in Quad Mode) | 400 MHz (Double, Triple, and Quad Mode) |
| Accuracy | ±2 ppm | ± 2 ppm |
| Pulse Mode | Single, Double, Triple, Quadruple Pulse External Width |
Single, Double, Triple, Quadruple Pulse External Width |
| Pulse Width | Range: 300 ps to 8 sec. Resolution: 10 ps Accuracy: ± 0.1 % + 30 ps Jitter: < 10ps |
Range: 1 ns to 8 sec. Resolution: 10 ps Accuracy: ± (1 % + 100 ps)2 Jitter: < 10 ps |
| Pulse Delay | Range: 0 ps to 8 secs Resolution: 10 ps Accuracy: ± 0.1% + 100ps |
Range: 0 ps to 8 sec. Resolution: 10 ps Accuracy: ± 0.1% + 100ps |
| Pulse Amplitude | Range pk-pk: 10 mVpp to 5 Vpp Resolution: 4 mV (amplitude from 250 mVpp to 5Vpp) Resolution: 1 mV (amplitude from 10 mVpp to 250mVpp) |
Range pk-pk: 100 mVpp to ±50 Vpp Resolution: 10 mV |
| Baseline Offset | Range: ± 2.5V adjustable Resolution: 2 mV |
Range: -25V, -12,5V, 0V, +12,5V, +25 V (software selectable) Resolution: 12.5V |
| Rise and Fall Times | Rise/Fall Time (20% to 80%): <70 ps Rise/Fall Time (10% to 90%): < 95 ps (1Vpp amplitude), < 105 ps (5Vpp amplitude) |
Rise/Fall Time (20% to 80%, Offset=0V): Rise Time (20% to 80%, Offset=0V): Rise/Fall Time (10% to 90%, Offset=0V): Rise Time (10% to 90%, Offset=0V): |
| Overshoot | < 5% | < 8 % (up to 25Vpp amplitude) < 5 % |
| Channel to Channel Jitter | < 10 ps | < 15 ps |
| Output Impedance | 50 Ω | |
| Trigger Mode | Single, Continuous, Burst, Gated | |
| Trigger Input Impedance | 50 Ω or 1kΩ User Selectable | |
| Trigger Input Range | ± 3.5 V (50 Ω Input Impedance) ± 10 V (1KΩ Input Impedance) < 50mVpp Minimum Detectable Amplitude |
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| Trigger Threshold | ± 8V 10 mV Resolution ± 100 mV Accuracy |
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| Maximum Trigger Frequency | 40 MHz | |
| Minimum Trigger Pulse Width | 1ns | |
| Trigger Jitter | < 30ps (Trig IN to Trig Out) with Frequency ≤ 15 MHz | |
| Reference Clock Input | 10MHz to 100MHz 50 Ω Input Impedance (AC Coupled) -5 dBm to 4 dBm Sine or Square wave ( RT <1 ns and Duty Cycle between 40% to 60%) |
|
| Reference Clock Output | 10MHz or Reference Clock Input Frequency 50 Ω Output Impedance (DC Coupled) Adjustable Amplitude Square wave: 0V to 1.25 V into 50 Ω [ 0V to 2.5 V into Hi-Z ] |
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| Power Input | 100 – 240 VAC ± 10%, 47 – 63 Hz, | |
| Power Consumption | 120 Watts | 300 Watts |
| Environment EMC and Safety |
Operating: 41°F to +104 °F [ 5 °C to +40 °C ] 5% to 80 % RH Non-condensing 9,842 feet [ 3,000 meters] Storage: -4 °F to 140 °F [-20 °C to +60 °C ] 5% to 95 % RH Non-condensing 39,370 feet [ 12,000 meter] EN61010-1 (Safety) EN 61326-1:2013 (Standards) EN 61326-1:2013 (Immunity) |
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| Hardware and Software | Intel Celeron 2GHz or Better 8 GB RAM 120 GB SSD Windows 10 7″ Touch LCD HDMI, VGA, USB, RS-232, and LAN Ports |
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| Dimension (W x H x D) Weight |
17.5 x 5.3 x 12.6 ” [ 445 x 135 x 320 mm ] (3U 19” rackmount) 21.7 lbs [ 9.7 kg ] |
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| Shipping Dimension Shipping Weight |
24 x 19 x 13 “ 28 lbs |
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User Interface and Pulse Output
The Model 765 user interface is designed for touch and it has been developed to put all the capabilities of the modern Pulse and Waveform Generators right at your fingertips.
All instrument controls and parameters are accessed through an intuitive UI that recalls the simplicity of Tablets and modern smart phones: touch features and gestures are available to engineers and scientists to create single or multiple pulses (dual, triple and quadruple pulse mode) in few touches.
Downloadable resources such as datasheets, firmware, software, drivers and products manuals. Alternatively, you can browse resources directly by visiting our downloads page.
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Yes. The Rise and Fall time for the Model 765 is 70ps. The amplitude is +/- 5V and there are 2 and 4 channel versions available.
Yes. The Model 765 allows you to set the pulse top and pulse baseline from -2.5V to +2.5V.






