General Purpose Light Detection Laser Power Monitoring Medical Analysi

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General Purpose Light Detection Laser Power Monitoring Medical Analysi

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PHOTOPSPHOTODIODE-AMPLIFIER HYBRIDS APPLICATIONS
General Purpose Light Detection Laser Power Monitoring Medical Analysis Laser Communications Code Readers Industrial Control Sensors Pollution Monitoring Guidance Systems Colorimeter
Detector/Amplifier Combined Adjustable Gain/Bandwidth Noise Wide Bandwidth Package Large Active Area
Series, combines photodiode with operational amplifier same package. general-purpose detectors have spectral range from either 1100 1100nm. They have integrated package ensuring noise output under variety operating conditions. These op-amps specifically selected Sensors engineers compatibility photodiodes. Among many these specific parameters noise, drift capability supporting variety gains bandwidths determined external feedback components. Operation from level several possible
either unbiased configuration speed, drift applications biased faster response time. modification above devices possible. modifications simply adding bandpass optical filter, integration additional chip (hybrid) components inside same package, utilizing different opamp, photodetector replacement, modified package design mount ceramic. your specific requirements, contact Applications Engineers.
Typical Spectral Response
Responsivity (A/W)
Standard
Enhanced
1000
1100
Wavelength (nm)
Typical Gain Frequency
Typical Responsivity Frequency
10000
455,
455LN
455HS
Responsivity (kV/W)
10MW 1000 100KW 10KW 0.001
Gain (dB)
0.01
0.01
Frequency (MHz)
Frequency (MHz)
Sensors Inc.
Phone:
310-978-0516
Fax:
310-644-1727
http:\\www.udt.com
PHOTOPS(PHOTODIODE SPECIFICATIONS)
Model Active Area Responsivity (A/W) Capacitance (pF) Dark Current (nA)
TYPICAL ELECTRO-OPTICAL SPECIFICATIONS TA=23OC
Shunt Resistance (MWW Reverse Voltage Temp Range Package Style
Dimension (mm)
Area
Operating
350-1100 Spectral Range
UDT-451 UDT-455 UDT-455LN UDT-455HS UDT-020D UDT-555D 4.57 11.3 1500 +100 TO-5 TO-8 Special Special TO-8 Special 2.54 TO-5
200-1100 Spectral Range
UDT-455UV UDT-455UV/LN UDT-020UV UDT-055UV UDT-555UV UDT-555UV/LN 4.57 7.98 11.3 1000 2500 2.54
4500
MECHANICAL DRAWINGS Click Here
OPERATIONAL AMPLIFIER SPECIFICATIONS
Model Supply Voltage Quiescent Supply Current (mA) Input Offset Voltage (mV) Temp Coefficient Input Offset Voltage Input Bias Current (pA)
TYPICAL ELECTRO-OPTICAL SPECIFICATIONS TA=23
Gain Bandwidth Product (MHz) Slew Rate Open Loop Gain, Input Noise Voltage Input Noise Current 0.22
Storage -typ
-10V
UDT-451 UDT-455 UDT-455UV UDT-020D UDT-020UV UDT-455HS UDT-455LN
±400
±500
UDT-455UV/LN UDT-055UV UDT-555D UDT-555UV UDT-555UV/LN
2500
±200
0.25
1770
Sensors Inc.
Phone:
310-978-0516
Fax:
310-644-1727
http:\\www.udt.com
PHOTOPSERIES
SCHEMATIC DIAGRAMS
output voltage proportional light intensity light given
VOUT
FREQUENCY RESPONSE (PHOTODIODE /AMPLIFIER COMBINATION)
100K
etector
frequency response photodiode amplifier combination determined characteristics photodetector, pre-amplifier well feedback resistor (RF) feedback capacitor (CF). known gain, (RF), frequency response detector pre-amp combination given
-15V
UDT- UDT-555
+15V
However, desired frequency response limited Gain Bandwidth Product (GBP) op-amp. order have stable output, values must chosen such that frequency response detector pre-amp combination, less than maximum frequency op-amp, i.e. f3dB fmax.
100K
Detector Op-Amp
Case Ground
where amplifier input capacitance. conclusion, example frequency response calculations, given below. gain 108, operating frequency op-amp with MHZ:
UDT-020D, 020UV
-15V
+15V
15.9
Thus, 15.9 fmax about 14.5 kHz. Hence, circuit stable since f3dB fmax.
Detector Op-Amp
more detailed application specific discussions further reading, refer APPLICATION NOTES INDEX catalog.
100K
Note: shaded boxes represent components their connections. components outside boxes typical recommended connections components.
UDT-451, 455LN, 455UV/LN UDT-555UV/LN
-15V
Sensors Inc.
Phone:
310-978-0516
Fax:
310-644-1727
http:\\www.udt.com

General Purpose Light Detection Laser Power Monitoring Medical Analysi

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