http://www.jinstartech.com/

General Attributes:

Thorlabs PDA200C very good price

• Current Measurement Ranges: 100 nA to 10 mA
• Low Noise Operation
• Single Point Power Calibration

Features

• 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. This photodiode amplifier is compatible with all of Thorlabs' mounted photodiodes and biased photodetectors. Our SM05-threaded mounted photodiodes feature a female SMA connector; to convert to BNC either an adapter cable or electrical adapter may be used.

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.

Thorlabs recommends recalibrating these amplifiers every 24 months and offers a factory recalibration service. To order this service, scroll to the bottom of the page and select the CAL-CCS2.