FEATURES

• 200 MHz Amplifier/Discriminator
• DC-coupling (Composite Amplifier)
• Fast NIM-, shaped and TTL output
• DC adjustment

APPLICATIONS

• Ultra high countrate Single Photon Counting
• LIDAR
• Mass-Spectrometry
• other general purpose use

DESCRIPTION

The 7011 Amplifier/Discriminator combines a fixed gain inverting Amp with a leading edge discriminator. Both functions can be used independently.

The input polarity of the discriminator has to be set to match the polarity of the input signal. Three types of output signals are available:

FAST-NIM output > 200 MHz,

a shaped negative output > 90 MHz

and a positive TTL output > 50 MHz.

SPECIFICATIONS

Amplifier

positive or negative DC-coupled

Output: inverted

Discriminator

Input: positive or negative DC-coupled selectable by a toggle switch

Outputs: FAST-NIM negative > 200 MHz

formed negative > 90 MHz

positive TTL with ajdustable width - max. 50 MHz

 _PERFORMANCE
 

Amplifier

Gain: approx. x 10

Noise: < 50 μV referred to the input

Band width: DC to > 200 MHz (250 MHz typical)

Discriminator

Countrate: > 200 MHz

Pulse pair resolution: > 5 nsec

Threshold stability: +/-0,02 %/^oC

PHYSICAL:

Size: single width NIM module 3.43 x 22.12 cm

as per TID 20893 (rev)

Net weight 0.85 kgs

Shipping weight: 1.9 kgs

_CONTROLS:

Amplifier

DC level adjust of the output signal

Discriminator

Threshold 10-turn precision potentiometer to set acceptance threshold for input pulses

Range 10mV to 1.2V

Input polarity to set input to the signal polarity "+" or "-". Setting is indicated by LED

Width control of the positive output and the internal deadtime

POWER REQUIREMENTS:

Version 7011: +6V 300mA, -6V 400mA (can also be operated from +- 12V)