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1, TA1000B-x Fast, Very Low Noise Pulse / Timing Preamplifier User Manual copyright FAST ComTec GmbH Grünwalder Weg 28a, D-82041 Oberhaching Germany Version 1.1, Mai 1, 2011
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2, Warranty ComTec GmbH II Warranty Equipment manufactured by FAST ComTec GmbH is warranteed against defects in materials and workmanship for a period of twelve months from date of shipment, provided that the equipment has been used in a proper manner as detailed in the instructions manuals. During the warranty period, repairs or replacement will be made to FAST ComTec's discretion on a return to factory basis. The transportation costs, including insurance …
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3, Table of Contents ComTec GmbH III Table of Contents 1. Description ..........................................................................................................................1-1 2. Specifications ......................................................................................................................2-1 2.1. Absolute maximum ratings.............................................................................…
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4, Description ComTec GmbH 1-1 1. Description The TA1000B-x comprises a series of fast, very low noise preamplifiers with model dependent voltage gains of 10, 50, 100 or 200 V/V and corresponding small signal bandwidths of 710, 1000, 950 or 400 MHz respectively. A unique feature for such high speed amplifiers is DC coupling. DC coupling avoids count rate effects due to non DC balanced pulse trains and the corresponding charging of c…
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5, Description ComTec GmbH 1-2 Typical applications for the TA2000B are: Pre-amp for ultra fast detectors (MCP, PMT, …) Oscilloscope and transient recorder pre-amp High precision Time-of-Flight Photon-/Ion-counting Wideband signal processing Fig. 1.2: TA1000B-10 simplified schematic Fig. 1.3: TA1000B-50 / -100 / -200 simplified schematic
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6, FAST ComTec TA1000B-x Specifications ComTec GmbH 2-1 2. Specifications 2.1. Absolute maximum ratings Supply: (100 ms max.) ......................................................................... 25V Signal input: ........................................................................................... 2.5 V ESD rating: ................................................................................. 23000 V HBM ......................................................................................…
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7, Specifications ComTec GmbH 2-2 2.4. Diagrams 2.4.1. 0 to –400mV falling edge pulse response TA1000B-10 (x10), Input 20mV/div, Output 100mV/div TA1000B-50 (x50), Input 5mV/div, Output 100mV/div TA1000B-10BWL (x10), In 20mV/div, Out 100mV/div TA1000B-50BWL (x50), In 5mV/div, Out 100mV/div The scope pictures are taken using a TEK11801C digital sampling scope with a SD20 20 GHz loop- through sampling head for input signals and a SD22 12.5GHz low noise sampling head for output signals …
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8, Specifications ComTec GmbH 2-3 TA1000B-100 (x100), Input 2mV/div, Output 100mV/div TA1000B-200 (x200), Input 1mV/div, Output 100mV/div TA1000B-100BWL (x100), In 2mV/div, Out 100mV/div TA1000B-200BWL (x200), In 1mV/div, Out 100mV/div The lower window of each plot shows details of the corresponding signals in the upper window. There is also a (red colored) histogram of the output signal jitter at a -100mV or –130mV threshold. The jitter's Peak-to-Peak…
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9, FAST ComTec TA1000B-x Specifications ComTec GmbH 2-4 2.4.2. Max. output broadband noise voltage Normally the noise is given input referred, so to speak, it can be compared to the source signal levels. For timing applications it is often more depicting to plot the total output noise of an amplifier. In the following scope pictures the output noise voltage of our TAx-amplifiers is accumulated over 10,000 waveforms corresponding to about 40 minutes of measurement time. Used was a TEK11801C digital sampling scope with a SD22 12.5GHz sampling head. Thus, the displayed no…
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10, Specifications ComTec GmbH 2-5 TA1000B-10 (x10), 5mV/div TA1000B-50 (x50), 10mV/div TA1000B-10 BWL (x10), 5mV/div TA1000B-50 BWL (x50), 10mV/div
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11, Specifications ComTec GmbH 2-6 TA1000B-100 (x100), 20mV/div TA1000B-200 (x200), 20mV/div TA1000B-100 BWL (x100), 20mV/div TA1000B-200 BWL (x200), 20mV/div
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12, FAST ComTec TA1000B-x Specifications ComTec GmbH 2-7 2.4.3. Simulated frequency response 2.5. Metal case Case material: ........................................ extruded aluminium sheath, Al Mg Si 0.5 Lid material: ...................................................................... die cast, GD-Al Si 12 Size: ...................................................................... 65/101 x 60 x 35 mm Weight: ...................................................................…
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13, FAST ComTec TA1000B-x Specifications ComTec GmbH 2-8 2.7. Available options 50 Ohm output impedance This improves the output signal quality since reflections from the target device (oscilloscope, multichannel analyzer, etc.) are well terminated at the TA2000's output and do not travel many times back and force over the cable. Thus, distortion of a subsequent pulse is largely avoided. This option is particularly recommended when high pulse rates are expected. The drawback, of course, …
