Datasheet

HCA-S-200M-SI
High-Speed Photoreceiver with
Si PIN PhotodiodeThe photoreceiver will be delivered without post holder and postFeatures

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Si PIN Detector, 0.8 mm Active Diameter
Spectral Range 320 ... 1000 nm
Bandwidth DC ... 200 MHz
4Amplifier Transimpedance (Gain) 2.0 x 10 V/A
4Max. Conversion Gain 1.1 x 10 V/W (@ 800 nm)

Applications

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Spectroscopy
Fast Pulse and Transient Measurements
Optical Triggering
Optical Front-End for Oscilloscopes, A/D Converters and Fast Lock-In AmplifiersSpecifications

Test Conditions

Vs = ± 15 V, Ta = 25°C

Gain

Transimpedance
Max. Conversion Gain

2.0 x 10 V/A
4
1.1 x 10 V/W

Frequency Response

Lower Cut-Off Frequency
Upper Cut-Off Frequency (-3 dB)
Rise/Fall Time (10% - 90%)
Gain Flatness

DC200 MHz
1.8 ns± 1 dB

Detector

Detector Material
Active Area
Spectral Response

Si PIN photodiode∅ 0.8 mm
320 ... 1000 nm

Input

Input Offset Compensation
Max. Optical Input Power
Min. NEP± 100 µA adjustable by offset trimpot
110 µW (for linear amplification, @ 800 nm)
9.3 pW/√Hz(@ 800 nm, 10 MHz)4(@ 50 Ω load)(@ 800 nm)(± 10 %)

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DE-HCA-S-200M-SI/SP/R9/05Apr2007 / Page 1 of 6

Datasheet

HCA-S-200M-SI
High-Speed Photoreceiver withSi PIN PhotodiodeOutput± 1.2 V(@ 50 Ω load)
for linear operation and low harmonic distortion± 1.7 V(@ 50 Ω load)
50 Ω (terminate with 50 Ω load for best performance)
18 mV peak-peak (@ 50 Ω load, no signal on photodiode)

Output Voltage Range
Max. Output Voltage Range
Output Impedance
Output Noise

Power Supply

Supply Voltage
Supply Current± 15 V
± 50 mA typ.
(depends on operating conditions, recommended
power supply capability minimum ± 150 mA)

Case

WeightMaterial

210 g (0.5 lbs)
AlMg4.5Mn, nickel-plated

Temperature Range

Storage Temperature
Operating Temperature-40 ... +100 °C
0 ... +60 °C

Absolute Maximum Ratings

Optical Input PowerPower Supply Voltage

20 mW± 22 V

Spectral Response
0.6

Photo Sensitivity [A/W]

0.5
0.4
0.3
0.2
0.1
0200

300

400

500

600

700

800

900

1000

1100

Wavelength [nm]Connectors

InputOutput
Power Supply

optical, free space, 25 mm ∅ round flange compatible
with microbench systems
BNC
LEMO series 1S, 3-pin fixed socket
Pin 1:+ 15V
Pin 2:- 15V
Pin 3:GND
PIN 2-Vs

PIN 1+Vs
PIN 3
GND

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Datasheet

HCA-S-200M-SI
High-Speed Photoreceiver with
Si PIN PhotodiodeTypical Performance
Characteristics

Frequency Response

Noise Spectrum

Note: Spectral noise data is measured at the amplifier output with darkened photo diode.
To determine the spectral input noise divide the measured output noise by the amplifier
conversion gain.
Conversion gain (V/W) = amplifier gain (20,000 V/A) x photo sensitivity (A/W).
MarkerFrequency

Output NoiseResulting Input Noise (NEP)⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯1210 MHz
254 MHz103 nV/√Hz
292 nV/√Hz

9.3 pW/√Hz (@ 800 nm)
27 pW/√Hz (@ 800 nm)

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Datasheet

HCA-S-200M-SI
High-Speed Photoreceiver with
Si PIN PhotodiodeTypical Performance
Characteristics(continued)

Pulse Response to Square Wave Input Signal(with 16 times averaging)

Large Signal Response
output signal for 100 MHz, 100 µW modulated optical input signal(with 4 times averaging)

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HCA-S-200M-SI
High-Speed Photoreceiver withSi PIN PhotodiodeTypical Performance
Characteristics(continued)

Small Signal Response
output signal for 1.5 µW modulated optical input signal, 1 MHz square wave
(without (top) and with 64 times averaging (bottom))

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Datasheet

HCA-S-200M-SI
High-Speed Photoreceiver withSi PIN Photodiode

Dimensions∅ 3.2 mm

Photosensitive Surface

51.0 mm

4.7 mm
15.0 mm15.0 mm

44.0 mm

POWER

OPTICAL INOUTPUT

74.0 mm

M4UNC 8-32

24.9 mm

4.7 mm

23.0 mm27.0 mm15.5 mm

12.7 mm84.0 mm

DZ-FWPR_1.cdr

FEMTO Messtechnik GmbHPaul-Lincke-Ufer 34
D-10999 Berlin x Germany
Tel.: +49 (0)30 – 4 46 93 86
Fax: +49 (0)30 – 4 46 93 88
e-mail: info@femto.de
http://www.femto.deSpecifications are subject to change without notice. Information furnished herin is believed tobe accurate and reliable. However, no responsibility is assumed by FEMTO MesstechnikGmbH for its use, nor for any infringement of patents or other rights granted by implicationor otherwise under any patent rights of FEMTO Messtechnik GmbH. Product names
mentioned may also be trademarks used here for identification purposes only.
© by FEMTO Messtechnik GmbH
Printed in Germany

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