General Information; Ordering Codes And Accessories - THORLABS PDA8A2 Abbreviated Operation Manual

1 General Information

The PDA8A2 is a wideband, fixed-gain-amplified silicon detector designed for the detection of
light signals from DC to 50 MHz. A buffered output drives up to 1.8 V into 50 Ω input loads. The
PDA8A2 is sensitive to light within the wavelength range of 320 nm to 1000 nm. The ultra-low
noise design includes an active low-pass filter to prevent aliasing effects and to suppress out of
band noise effectively.
The PDA8A2 detector housing can be integrated in optical setups using convenient 8-32 and
M4 combi-thread mounting holes that are compatible with both imperial and metric threading.
Please see the chapter
The housing accommodates Thorlabs' SM05 (0.535"-40) and SM1 (1.025"-40) threaded adap-
ters and accessories. This allows convenient mounting of external optics, light filters, and aper-
tures. The product includes a SM1T1 SM1 Coupler Body which adapts the external thread to
an internal thread and holds the SM1RR Retaining Ring and a reusable protective plastic cover
cap. For accessories, please visit our
A ±12 VDC power supply is included with each amplified photodetector. The appropriate input
voltage (100 VAC, 120 VAC, 230 VAC) can be selected with a switch on
Attention
Please find all safety information and warnings concerning this product in the chapter
in the Appendix.

1.1 Ordering Codes and Accessories

PDA8A2: Silicon Amplified Photodetector, 320 - 1000 nm, Bandwidth Range DC-50 MHz, Ac-
tive Area Ø0.8 mm (0.5 mm²), Combi-Thread Mounting Holes Compatible with 8-32
and M4 Threads
Included Accessories
LDS12B Power Supply (±12V, 0.2A), 100 VAC, 120 VAC or 230 VAC Line Voltage
·
· Plastic Cover Cap
SM1RR-SM1 Retaining
Optional Accessories
· PDA-C-72 DC power supply cable to PDA8A2: This cable has a connector on one end
and open wires at the other. The pin-out of the PDA8A2 DC power jack is shown in the
appendix .
9
Please visit our homepage
posts and post holders, data sheets and further information.
© 2022 Thorlabs GmbH
Mounting for details.
3
website
(Item # SM1EC2B) on an included
Ring.
http://www.thorlabs.com
or contact Thorlabs
SM1T1-SM1 Coupler
for various accessories like fiber adapters,
1 General Information
.
13
thepower supply
with a
.
2
Safety
10
1