DE-HCA-2M-1M-C_2

Datasheet HCA-2M-1M-C High Speed Current Amplifier S O P H I S T I C A T E D T O O L S F O R S I G N A L R E C O V E R Y DE-HCA-2M-1M-C/DS/R2/02NOV05/ Page 1 of 3 Features y Bandwidth and Frequency Response Independent of Detector Capacitance (up to 1 nF) y Low Noise 3.5 pA/√Hz Equivalent Input Noise Current y Bandwidth DC ... 2 MHz y Transimpedance (Gain) 1 x 106 V/A y Protection against ± 3.5 kV Transients Applications y Photodiode and Photomultiplier Amplifier y Spectroscopy y Charge Amplifier y Ionisation Detectors y Preamplifier for Lock-Ins, A/D Converters, etc. Specifications Test Conditions Vs = ± 15 V, Ta = 25°C Gain Transimpedance 1 x 106 V/A (@ 50 Ω load) Gain Accuracy ± 1 % Frequency Response Lower Cut-Off Frequency DC Upper Cut-Off Frequency (- 3 dB) 2 MHz Rise / Fall Time (10 % - 90 %) 180 ns Gain Flatness ± 0.3 dB Input Equ. Input Noise Current 3.5 pA/√Hz (@ 100 kHz) Equ. Input Noise Voltage 0.8 nV/√Hz (@ 100 kHz) Input Bias Current 18 µA typ. Input Bias Current Drift 0.8 nA / K Offset Current Compensation ± 6 µA adjustable by offset trimpot Input Current Range ± 1.5 µA (for linear amplification) Input Offset Voltage 3 mV DC Input Impedance 50 Ω (virtual) // 5 pF Output Output Voltage Range ± 1.5 V (@ 50 Ω load) for linear operation and low harmonic distortion Output Impedance 50 Ω (terminate with 50 Ω load for best performance) Bias Output Bias Output Voltage Range ± 12 V, adjustable by bias trimpot Bias Output Impedance 10 kΩ // 1 µF Datasheet HCA-2M-1M-C High Speed Current Amplifier S O P H I S T I C A T E D T O O L S F O R S I G N A L R E C O V E R Y Page 2 Specifications (continued) Power Supply Supply Voltage ± 15 V Supply Current ± 50 mA typ. (depends on operating conditions, recommended power supply capability minimum ± 150 mA) Case Weight 210 g (0.5 lbs) Material AlMg4.5Mn, nickel-plated Temperature Range Storage Temperature -40 ... +100 °C Operating Temperature 0 ... +60 °C Absolute Maximum Ratings Input Voltage ± 5 V Input Voltage Transient ± 3.5 kV (pulsewidth 10 ns) Power Supply Voltage ± 22 V Connectors Input BNC Output BNC Power Supply LEMO series 1S, 3-pin fixed socket Pin 1: + 15V Pin 2: - 15V Pin 3: GND PIN 2 -Vs PIN 3 GND PIN 1 +Vs Application Diagrams Photo Detector Biasing in Photoconductive Mode: Best choice for high speed applications and optimum signal to noise performance. C URR E N T IN P U T High -Speed Current to Vo ltage Converter Use additiona l Bypass C apacitor c lose to D etector (~100 nF, Ceram ic) Connect the D etector as c lose as possible to the Am plifier. A Z01-0201-20 STABIL IZED BIAS VOLTAG E O U TP U T BIAS I/U H C A +12 V -12 V 10 kΩ 470 nF Datasheet HCA-2M-1M-C High Speed Current Amplifier S O P H I S T I C A T E D T O O L S F O R S I G N A L R E C O V E R Y Page 3 Dimensions HCAIN OUT POWER 27 m m 14 m m DZ01-0201-22 94 mm 74 mm 12 m m 22 mm 41 mm ∅ 3.3 mm 51 m m 15 m m 87 mm 44 m m FEMTO Messtechnik GmbH Klosterstr. 64 D-10179 Berlin x Germany Tel.: +49-(0)30-280 4711-0 Fax: +49-(0)30-280 4711-11 e-mail: info@femto.de http://www.femto.de Specifications are subject to change without notice. Information furnished herin is believed to be accurate and reliable. However, no responsibility is assumed by FEMTO Messtechnik GmbH for its use, nor for any infringement of patents or other rights granted by implication or otherwise under any patent rights of FEMTO Messtechnik GmbH. 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