BNC Model 9010

  ComTec

Programmable Precision Pulse Generator

FEATURES

  • Programmable amplitudes wih 1 mV resolution
  • Flat top, tail pulse, and DC
  • Programmable DC/Pulse mode
  • DC level that equals pulse top amplitude
  • Repetition rate 10 Hz - 1 MHz
  • Delay adjustable from 200 ns to 100 ms
  • Rise Time 50 ns - 10 ms
  • Fall Time 200 ns - 1 ms
  • Double Pulse Capability
  • Integral non-linearity of amplitude +/- 0.05%
  • Amplitude jitter: less than 0.005% rms

APPLICATIONS

  • Linearity measurement and compensation
  • Automatic test systems
  • Data acquisition systems
  • Nuclear system calibration
  • Threshold checking

DESCRIPTION

The Model 9010 is a programmable precision pulse generator designed for use in a broad range of applications including physics and chemistry research, automatic test systems, and calibration of nuclear and data acquisition systems and their components. The instrument has two major features that contribute to its versatility and usefulness in these areas - programmability of pulse amplitudes and remote selectability of either a Pulse or DC mode. Pulse amplitudes can be remotely programmed with 1 mV resolution from 0 to ±9.999 V. The Pulse/DC feature allows verification of pulse amplitude with a digital voltmeter. A variety of pulse shapes, variable risetimes, falltimes, widths, and amplitudes, adds to the 9010's versatility.

Researchers in physics and chemsitry will find the 9010 highly suited to Pulse Height Analyzer and Multi-Channel Analyzer system calibration where it is periodically necessary to test stability, resolution, and linearity. With the 9010 it is possible to automatically check such systems and to correct the resulting data to minimize system caused errors. The broad range of pulses that the 9010 can produce are typical of those encountered in this area.

Automatic test systems users can now choose a precision pulse generator that is programmable. Amplitudes are programmable from 0 to ±9.999 V in 1 mV increments. The DC/Pulse feature provides for precision measurement of pulse amplitudes by providing, at the output connector, a DC level that is equal to the pulse amplitude. This mode is programmable. Control over the pulse repetition rate is achieved when the 9010 is externally triggered.

Calibration of nuclear and data acquisition systems and their components is another application of the 9010. Multi-detector systems can be automatically checked before and during experimentation. System components such as amplifiers and ADC's can be routinely checked.

 SPECIFICATIONS

INPUTS and OUTPUTS

External Trigger:
0 to 1 MHz, > +1.5 V, > 50 ns pulse.

External Reference Input:
+11 V max, input impedance 1k.

Amplitude: 0 to 9.999 volts adjustable or programmable with 1 mV resolution.

Trigger Out:
2.5 V positive pulse into 50 ohm, 30 ns rise time, 80ns width, 50 ohm output impedance.

GENERAL

Amplitude Characteristics:
1. Stability +/- 100 ppm/ oC of full scale or 300 mV/ oC, whichever is greater, for unattenuated output. When attenuation is switched in, 300 mV/ oC is reduced by attenuation factor.
2. Integral non-linearity: +/-0.05%.
3. Amplitude Settability: 0.01%.
4. Amplitude Jitter: 0.005%.

Pulse / DC Modes: In the pulse mode, the output amplitude is within +/- 5 mV of the DC mode level for widths > 5 ns rise times or 500 ns, whichever is greater.

Output Impedance:
50 ohm, +/22%.

Jitter of Frequency, Delay and Width:
Less than 0.1% each.

Ambient:
0 oC to 50 oC.

Power Requirements:
+24V at 250 mA, +12V at 250mA, +6V at 350 mA,
-24V at 250 mA, -12V at 250 mA, -6V at 350 mA.

CONTROLS

Single cycle:
One pulse occurs each time the push button is pressed.

Rise Time (10-90%):
50 ns to 10 ms in 8 steps.

Decay Time Constant (100-37%):
200 ns to 1 ms in 9 steps. Rise and Decay times independently adjustable for Decay / Rise time >10.

Flat Pulse Top: Width from 200 ns to 100 ms, continuously variable. Rise and Decay times same as tail pulse.

Frequency:
A: 10 Hz to 1 MHz, continuously adjustable.
B: External trigger

Delay: 200 ns to 100 ms, continuously variable (between trigger out and leading edge of output pulse).

Single/Double Pulse: In double pulse mode, generates pulse pair separated by the time selected by the delay controls. Minimum separation 200 ns.

Pulse Shape: Tail or flat top pulse selected by front panel toggle.

Polarity: Positive or Negative.

Attenuators:
x2, x5, x10, by three toggles.

Remote Programming:
Data Input BCD coding, TTL compatible
Connector Amphenol 57-40361.
Programming time: 1 ms maximum

PHYSICAL

Size:
Triple width AEC module 4.05" W x 8,70"H in accordance with TID 20893 (Rev. 3).

Weight:
4.5 lbs. (2 kg) net; 7lbs. (3.2 kg) shipping.

Nim bins and modules, Nuclear Pulse Generators
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Revised April 18, 2005