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The PB-5 sets a new standard for precision pulse generators. It offers full digital controllability with a built-in ramp generator for linearity testing. It provides tail and flat top pulses with outstanding integral linearity and extremely low amplitude change with temperature. The PB-5 is capable of testing the stability, linearity and resolution of the most demanding spectroscopy circuits and instrumentation. It is the successor to the industry standard, PB-4 pulse generator.

Pulse Settings

The 4x16 LCD display, keypad, and a spinner knob provide a user interface that is easy to use. RS232 interface is also standard along with memory that will store and recall nine complete pulse setups.

Trigger Mode

The Model PB-5 pulse generator provides unprecedented performance in a precision pulse generator. It includes a full-featured, highly flexible ramp generator and programmability. As a precision pulse generator, the PB-5 surpasses or equals all existing designs in the important performance areas of resolution, linearity and stability. The pulse repetition rates, which are variable over a broad range, go up to 0.5 MHz. The higher rates are required when testing for MCA and PHA linearity because of the high number of data points required for a statistically valid test.

Ramp Settings

The built-in ramp generator allows you to control ramp duration, the number of ramps and the ramp limits. Now you can test the entire range of your system or just a portion of that range. This ramp generator and precision pulse generator combination allows you to tackle the most demanding applications. The new user interface is intuitive and easy-to-use. Parameters can be selected and changed by spinner knob and/or keypad pushbuttons.


  • Fine Value
  • Multiple functions
  • Higher rates
  • Fast automated testing
  • Completely Programmable
  • Built-in ramp generator
  • Excellent linearity, stability and resolution
  • Multi-Channel Analyzer Testing
  • Nuclear Circuit Testing
  • Pulse Height Analyzer Calibration
  • Pile-Up and Saturation Tests
  • Risetime and Bandwith Characterization
  • NIM Module System Integration
  • Radiation Detector Testing
  • Temperature Stability +/-5ppm (world's best)
  • Pulse Types: Flat Top, Tail Pulse
  • Remote: RS-232, Labview Support
  • Rise Time: Adjustable
  • Fall Time (Decay): Adjustable
  • Amplitude Resolution: 155uV steps


Rep Rate: 2.0 Hz to 500 kHz
Witdh: 100 ns to 1 ms
Delay: 250 ns to 10 ms
Rise Time: 50 ns to 10 us (10 % - 90 %) in 8 steps
Decay Time: 0.5 us to 1.0 ms (100 % - 37 %) in 11 steps
Amplitude 0.0 to 10.0 V (0 to 5 V into 50 ohms)

Scaleable in energy units. (kev)

Resolution: 155 uV
Jitter: ± 10 ppm
Attenuation: 0, 2, 5, 10, 20, 50, 100, 200, 500, 1000
Integral non-linearity: ± 15 ppm
Temperature stability: ± 5 ppm per ºC from 20ºC to 45ºC
Pulse Type: Flat-top or Tail pulse - In tail mode, rise time is a fixed 50 ns, decay time is adjustable. In flat-top mode, both rise time and decay time are adjustable.
Polarity: Positive/Negative
Ext. Trigger: 0 to 500 kHz, +100 mV to +3.5 v, threshold adjustable.
Width: 100 ns to 1 ms
Modes: Single pulse via a front panel pushbutton;

Internal Rep Rate;

External Trigger;

External Gate with the same pulse requirements as Ext Trig;

Internal Ramp-adjustable start and stop points; adjustable ramp period 30-900 s, selectable number of ramp cycles, ramp in keV or volts. Clamped baseline option to bring the baseline to zero prior to the next pulse.

Stored Settings: Up to 9 complete configurations with recall. Also stores parameters in use at shutdown for automatic recall when powered on.
Remote: RS232 at 9600 baud, User Customized or LabView Drivers.
Power Required: +24V , 170 ma

-24V , 150 ma

+12V , 450 ma

-12V , 5 ma

Portable power supply available for applications that require portability or benchtop use. See BNC Model AP-3 Portable NIM Power Supply.

Mechanical: Triple-witdh AEC NIM module 4.05" wide x 8.70" high in accordance with TID-20893 ( Rev 3. ).
Weight: 2 lbs. 13 oz. net, 6 lbs shipping.


PDF icon pb5-precision-pulser-datasheet.pdf268.94 KB

Technical resources: 

PDF icon pb-5manual.pdf350.85 KB
Product support: 

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