Thorlabs.com - Benchtop Photodiode Amplifier

Product Summary

Transimpedance Photocurrent Amplifier
Extremely Low Noise Operation Over Entire Dynamic Range
5 Digit Display with up to 10 pA Resolution
Supports Single Point Power Calibration
Supports Both Photodiode Polarities (CG and AG)
Adjustable Bias Voltage
Offset Compensation for Input Amplifier and Photodiode Dark Current
RoHS Compliant

The PDA200C Photodiode Amplifier is ideally suited for ultra low noise amplification of very small photodiode currents. It offers six current ranges from 100 nA to 10 mA full scale and provides a maximum display resolution of 10 pA. The unit supports cathode grounded (CG) and anode grounded (AG) photodiodes. This amplifier may be operated in either photovoltaic or photoconductive mode. The adjustable bias voltage provides improved linearity of the responsivity and increased frequency response.

With the updated PDA200C Series, our Photocurrent Amplifier is RoHS compliant. Additionally, the current measurement ranges were changed. The rest of the features are virtually the same as the former PDA200 Series.

PDA200C Specifications
Full Scale Current Measurement Ranges	100 nA to 10 mA (in Decade Steps)
Maximum Display Resolution	10 pA
Display Range:	0 to 10000 (CG), 0 to -10000 (AG)
Polarity of the Photodiode	Cathode Grounded (CG) or Anode Grounded (AG)
Bias Voltage	0 to -10 V (CG), 0 to +10 V (AG)
Photodiode Sensitivity (for Calibrated Power Display)	0.05 to 2 A/W
Max. Photodiode Capacitance for Frequency Compensated Operation	10 nF
Temperature Coefficient	<50 ppm/°C
Input Impedance	~0 Ω (Virtual Ground)
Output Voltage Range (Analog Output)	0 to +10 V (CG), 0 to -10 V (AG)
Noise (rms)	0.02% f.s.
Load Resistance	>10 kΩ
General Data
Display	LED, 5 Digits
Connectors for Photodiode Input and Analog Output	BNC
Chassis Ground Connector	4 mm Banana Jack
Line Voltage / Frequency	100 V, 115 V, 230 V +15% -10% each / 50 to 60 Hz
Maximum Power Consumption	10 VA
Operating Temperature	0 to +40 °C
Storage Temperature	-40 to +70 °C
Warm-up Time for Rated Accuracy	10 min
Weight	<3 kg
Dimensions (W x H x D without operating elements)	146 x 66 x 290 mm
Dimensions (W x H x D with operating elements)	146 x 77 x 320 mm

Measurement Range	Resolution	Amplification	Accuracy	Bandwidth*
10 mA	1 µA	1 x 10³V/A	± 0.05% f.s.	500 kHz
1 mA	100 nA	1 x 10⁴ V/A	± 0.05% f.s.	250 kHz
100 µA	10 nA	1 x 10⁵ V/A	± 0.05% f.s.	70 kHz
10 µA	1 nA	1 x 10⁶V/A	± 0.05% f.s.	20 kHz
1 µA	100 pA	1 x 10⁷ V/A	± 0.05% f.s.	5 kHz
100 nA	10 pA	1 x 10⁸ V/A	± 0.1% f.s.	1 kHz

* Small signal 3 dB bandwidth of the analog output

PDA200C	Part
x	PDA200C Photodiode Amplifier
x	Operating Manual
x	Power Cord

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Posted Comments:
Poster: julien	Posted Date: 2010-04-22 09:44:53.0
A response from Julien at Thorlabs: "Err06" is displayed on the unit when an electronic problem occurs on the PCB leading to a malfunction of the PDA200C. The unit thus needs to be sent to us for repair. For errors not listed, the manual recommend to contact directly tech support, since those errors cannot be fixed by the user. I will contact you directly to initiate the return procedure.

Poster: davepatterson99	Posted Date: 2010-04-21 12:22:52.0
I have a PDA 200 C. When I turn it on (no diode connected) it says "Err06". Your manual says nothing about "Err06". This is terrible! The unit is quite new (about one year). Please send me the real manual?