THORLABS PDA500 Setup

Operating Manual PDA500 - Switchable Gain, Amplified GaAsP Detector
Description:
The PDA500 is an amplified, switchable-gain, GaAsP detector designed for detection of light signals from DC to 200
kHz. A five-position rotary switch allows the user to vary the gain in 10 dB steps. A buffered output drives a 50Ω load
impedance up to 5 volt. The PDA500 housing includes a removable threaded coupler that is compatible with any
number of Thorlabs 1" threaded accessories. This allows convenient mounting of external optics, light filters
apertures, as well as providing an easy mounting mechanism using the Thorlabs cage assembly accessories.
The PDA500 has an 8-32 tapped mounting hole with a 0.25" mounting depth and includes a 120VAC power AC/DC
supply. The PDA500-EC has a M4 tapped mounting hole and includes A 230VAC AC/DC power supply.
Specifications:
Detector
Detector
Active Area
Response
Peak Response
Bandwidth
NEP (640nm, 0dB)
NEP (640nm, 10dB)
NEP (640nm, 20dB)
NEP (640nm, 30dB)
NEP (640nm, 40dB)
1
Output Voltage(50Ω)
1.
Output voltage
1
Output Impedance
1.
Load Impedance
Gain Steps
Gain Switch
On / Off Switch
Output
Damage Threshold
Optical Head Size
Weight
Accessories
Storage Temp
Operating Temp
AC Power Supply
Input Power
Note 1: The PDA500 has a 50Ω series terminator resistor (i.e. in series with amplifier output). This forms a voltage
divider with any load impedance (e.g. 50Ω load divides signal in half).
Setup
•
Unpack the optical head, install a Thorlabs TR-series ½" diameter post into the 8-32 (M4 on -EC version) tapped
hole on the bottom of the head, and mount into a PH-series post holder. Note: Do not install a mounting post
more than ¼" into the housing. This will damage the unit.
•
Plug the 5-pin DIN plug on the power supply provided with the PDA500 into the mating jack on the PDA500.
•
Plug the power supply into an 50-60Hz, 100-120VAC outlet (220-240VAC for -EC version).
PO Box 366, 435 Route 206N, Newton, NJ 07860
Ph (973) 579-7227, Fax (973) 383-8406, http://www.thorlabs.com
GaAsP 0 dB Setting
1.3 x 1.3 mm
300 to 680 nm
0.3 A/W @ 640 nm
DC to 150kHz
-12 W/√ √ √ √ Hz
60 x 10
W/√ √ √ √ Hz
-12
10 dB Setting
20 x 10
-12 W/√ √ √ √ Hz
9 x 10
-12 W/√ √ √ √ Hz
6 x 10
W/√ √ √ √ Hz
-12
4 x 10
0 to 5V
0 to 10V
20 dB Setting
50 ohms
Hi -Z to 50 ohms
0, 10, 20, 30, 40 dB
5-Pos Rotary
Toggle
BNC
100mW CW 30 dB Setting
2
0.5J/cm 10ns PW
φ φ φ φ 1.5" x 0.79"
60 grams
SM1T1 Coupler
-20 to 80° ° ° ° C
-10 to 60° ° ° ° C
40 dB Setting
AC - DC Converter
100-120VAC,
(220-240VAC-EC
version)
50-60Hz, 5W
2922-D02 Rev C 8/2/00
Performance
1
Transimpedance Gain
1
Trans. Gain (50Ω)
Bandwidth
Noise (RMS)
Offset -5 mV
1
Transimpedance Gain
1
Trans. Gain (50Ω)
Bandwidth
Noise (RMS)
Offset
-5 mV
1
Transimpedance Gain
1
Trans. Gain(50Ω)
Bandwidth
Noise (RMS)
Offset
-10 mV
1
Transimpedance Gain
1
Trans. Gain (50Ω)
Bandwidth
Noise (RMS)
Offset
-20 mV
1
Transimpedance Gain
1
Trans. Gain(50Ω)
Bandwidth
Noise (RMS)
Offset
-100 mV
Page 1of 3
min typical
4
1.5 x 10 V/A
4
0.75 x 10 V/A
150 kHz
< 100 µ µ µ µ V
4.5 mV 15 mV
4
4.7 x 10 V/A
4
2.35 x 10 V/A
150 kHz
130 µ µ µ µ V
5 mV 15 mV
5
1.5 x 10 V/A
5
0.75 x 10 V/A
150 kHz
170 µ µ µ µ V
6.5 mV 20 mV
5
4.7 x 10 V/A
5
2.35 x 10 V/A
100kHz
250 µ µ µ µ V
11 mV 50 mV
6
1.5 x 10 V/A
6
0.75 x 10 V/A
45kHz
400 µ µ µ µ V
25 mV 100 mV
max