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Table of Contents
Related Manuals for THORLABS PDA100A
Summary of Contents for THORLABS PDA100A
- Page 1 PDA100A(-EC) Si Switchable Gain Detector User Guide...
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Page 2: Table Of Contents
Trouble Shooting .............. 7 Chapter 6 Specifications ..............8 6.1. Response Curve............ 10 6.2. Mechanical Drawing ............ 11 Chapter 7 Certificate of Conformance ........... 12 Chapter 8 Regulatory ............... 13 Chapter 9 Thorlabs Worldwide Contacts........14 ... -
Page 3: Chapter 1 Warning Symbol Definitions
Si Amplified Detector with Switch Gain Chapter 1: Warning Symbol Definitions Chapter 1 Warning Symbol Definitions Below is a list of warning symbols you may encounter in this manual or on your device. Symbol Description Direct Current Alternating Current Both Direct and Alternating Current Earth Ground Terminal Protective Conductor Terminal Frame or Chassis Terminal... -
Page 4: Chapter 2 Description
10 dB steps. A buffered output drives 50 Ω load impedances up to 5 V. The PDA100A(-EC) housing includes a removable threaded coupler (SM1T1) and retainer ring (SM1RR) that is compatible with any number of Thorlabs 1”... -
Page 5: Chapter 3 Setup
Attach a 50 Ω coax cable (i.e. RG-58U) to the output of the PDA. When running cable lengths longer than 12" we recommend terminating the opposite end of the coax with a 50 Ω resistor (Thorlabs p/n T4119) for maximum performance. Connect the remaining end to a measurement device such as an oscilloscope or high speed DAQ card. -
Page 6: Chapter 4 Operation
Chapter 4 Operation 4.1. Theory of Operation Thorlabs PDA series are ideal for measuring both pulsed and CW light sources. The PDA100A(-EC) includes a reverse-biased PIN photo diode, mated to a switchable gain transimpedance amplifier, and packaged in a rugged housing. -
Page 7: Dark Current
Si Amplified Detector with Switch Gain Chapter 4: Operation 4.3. Dark Current Dark current is leakage current which flows when a bias voltage is applied to a photodiode. The PDA with Transimpedance Amplifier does control the dark current flowing out. Looking at the figure above, it can be noted that Point B is held at ground and the amplifier will try to hold point A to “Virtual Ground”. -
Page 8: Terminating Resistance
The maximum output of the PDA100A(-EC) is 10 volts for high impedance loads (i.e. RLoad > 5 kΩ) and 5 volts for 50 Ω loads. Adjust the gain so that the measured signal level out of the PDA100A(-EC) is below 10 volts (5 volts with a 50 Ω load) to avoid saturation. -
Page 9: Chapter 5 Trouble Shooting
Si Amplified Detector with Switch Gain Chapter 5: Trouble Shooting Chapter 5 Trouble Shooting Problem Suggested Solutions Verify that the power is switched on and all connections are secure. Verify the proper terminating resistor is installed if using a voltage measurement device. There is no signal response. -
Page 10: Chapter 6 Specifications
±8 mV (15 mV max) Offset ±30 mV (Max) The PDA100A(-EC) has a 50 Ω series terminator resistor (i.e. in series with amplifier output). This forms a voltage divider with any load impedance (e.g. 50 Ω load divides signal in half). - Page 11 100 – 200 VAC (50 to 60Hz) 220 – 240 VAC (50 to 60 Hz) Although the power supply is rated for 31 W the PDA100A(-EC) actual usage is <5 W over the full operating range. Rev F, June 30, 2017...
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Page 12: Response Curve
Si Amplified Detector with Switch Gain Chapter 6: Specifications 6.1. Response Curve PDA100A Responsivity 1000 1100 Wavelength (nm) The highlighted region represents the detector’s specified wavelength range. Page 10 13055-D03... -
Page 13: Mechanical Drawing
Si Amplified Detector with Switch Gain Chapter 6: Specifications 6.2. Mechanical Drawing Rev F, June 30, 2017 Page 11... -
Page 14: Chapter 7 Certificate Of Conformance
Si Amplified Detector with Switch Gain Chapter 7: Certificate of Conformance Chapter 7 Certificate of Conformance Page 12 13055-D03... -
Page 15: Chapter 8 Regulatory
Waste Treatment is Your Own Responsibility If you do not return an “end of life” unit to Thorlabs, you must hand it to a company specialized in waste recovery. Do not dispose of the unit in a litter bin or at a public waste disposal site. -
Page 16: Chapter 9 Thorlabs Worldwide Contacts
Si Amplified Detector with Switch Gain Chapter 9: Thorlabs Worldwide Contacts Chapter 9 Thorlabs Worldwide Contacts For technical support or sales inquiries, please visit us at www.thorlabs.com/contact for our most up-to-date contact information. USA, Canada, and South America UK and Ireland Thorlabs, Inc. Thorlabs Ltd. - Page 17 www.thorlabs.com...
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