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Related Manuals for THORLABS PDA36A
Summary of Contents for THORLABS PDA36A
- Page 1 PDA36A(-EC) Si Switchable Gain Detector User Guide...
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Page 2: Table Of Contents
6.1. Response Curve.............. 9 6.2. Mechanical Drawing ............ 10 Chapter 7 Certificate of Conformance ........... 11 Chapter 8 Regulatory ............... 12 8.1. Waste Treatment is Your Own Responsibility .... 12 8.2. Ecological Background .......... 12 Chapter 9 Thorlabs Worldwide Contacts........13 ... -
Page 3: Chapter 1 Warning Symbol Definitions
Si Switchable Gain Detector 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
350 to 1100 nm. An eight-position rotary switch allows the user to vary the gain in 10 dB steps. A buffered output drives 50 Ω load impedances up to 5 V. The PDA36A(-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 PDA36A(-EC) includes a reverse-biased PIN photo diode, mated to a switchable gain transimpedance amplifier, and packaged in a rugged housing. -
Page 7: Bandwidth And Response
> 5 kΩ) and 5 volts for 50 Ω loads. Adjust the gain so that the Load measured signal level out of the PDA36A(-EC) is below 10 volts (5 volts with a 50 Ω load) to avoid saturation. For low terminating resistors, <5 kΩ or 1% error, an additional factor needs to be considered. -
Page 8: Gain Adjustment
∗ 4.6. Gain Adjustment The PDA36A(-EC) includes a low noise, low offset, high gain transimpedance amplifier that allows gain adjustment over a 70dB range. The gain is adjusted by rotating the gain control knob, located on the top side of the unit. There are 8 gain positions incremented in 10dB steps. -
Page 9: Chapter 6 Specifications
Offset ±10 mV (Max) ±10 mV (Max) The PDA36A 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). For NIR wavelengths, the rise time of the photodiode element will become slower which may limit the effective bandwidth of the amplified detector. - Page 10 Input Power 100 – 200 VAC (50 to 60Hz) 220 – 240 VAC (50 to 60 Hz) Although the power supply is rated for 31 W the PDA36A actual usage is <5 W over the full operating range. Page 8...
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Page 11: Response Curve
Si Switchable Gain Detector Chapter 6: Specifications 6.1. Response Curve Rev E, July 15, 2017 Page 9... -
Page 12: Mechanical Drawing
Si Switchable Gain Detector Chapter 6: Specifications 6.2. Mechanical Drawing Page 10 13053-D04... -
Page 13: Chapter 7 Certificate Of Conformance
Si Switchable Gain Detector Chapter 7: Certificate of Conformance Chapter 7 Certificate of Conformance Rev E, July 15, 2017 Page 11... -
Page 14: Chapter 8 Regulatory
8.1. 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 15: Chapter 9 Thorlabs Worldwide Contacts
Si Switchable Gain Detector 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. - Page 16 www.thorlabs.com...
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