Si-PDA-Adj-G Photodetector

Silicon-based amplifying photodetector

Wide spectral coverage and strong silicon-based compatibility
Enlarged design with outstanding low-light detection capability
Adjustable gain + bandwidth adaptation for wide scene compatibility
High compatibility + standardization for easy integration

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Data Sheet

Overview

Introduction:

This product uses a silicon detector with a photosensitive range covering 190nm to 1100nm, and is often used for ultraviolet and visible light measurement. As an amplifying detector, it has 8 adjustable gain levels, enabling quantitative photoelectric conversion. It not only has a wide dynamic range, suitable for various photoelectric development scenarios with extensive applications, but also is the same model as Thorlabs' product, allowing seamless compatibility. Additionally, it features excellent performance and high cost-effectiveness, can provide comprehensive technical support, and can meet the needs of non-standard customization services.

Features:

It adopts a silicon detector with a photosensitive range of 190nm~1100nm, suitable for ultraviolet and visible light measurement.
It is an amplifying detector with 8 adjustable gain levels, enabling quantitative photoelectric conversion.
It has a wide dynamic range and is suitable for various photoelectric development scenarios.
It is seamlessly compatible with the same type of products from THORLABS.
It features excellent performance and high cost-effectiveness, and provides comprehensive technical support.
Non-standard customization services are supported.

Dimension:

Specifications

Si/InGaAs-ps-S Series Specifications Sheet

Parameter Item	Parameter Value
Gain Range (Hi-Z Load)	1.51kV/A~4.75MV/A
Gain Range (50Ω Load)	0.75kV/A~2.38MV/A
Signal Amplitude	Hi-Z Load: 0~10V; 50Ω Load: 0~5V
Operating Temperature	10~40℃
Storage Temperature	-20~70℃
Detector Net Weight	0.10kg
Overall Dimension	2.79" X 2.07" X 0.89" (70.9 mm X 52.5 mm X 22.5 mm)

Adjustable Gain Parameters

Detailed Adjustable Gain Specifications Sheet

	0dB	10dB	20dB	30dB
Gain (Hi-Z)	1.51×10³ V/A	4.75×10³ V/A	1.5×10⁴ V/A	4.75×10⁴ V/A
Gain (50Ω)	0.75×10³ V/A	2.38×10³ V/A	0.75×10⁴ V/A	2.38×10⁴ V/A
Bandwidth (BW)	12MHz	1.6MHz	1MHz	260kHz
Noise (RMS)	258μV	192μV	207μV	211μV
	40dB	50dB	60dB	70dB
Gain (Hi-Z)	1.51×10⁵ V/A	4.75×10⁵ V/A	1.5×10⁵ V/A	4.75×10⁶ V/A
Gain (50Ω)	0.75×10⁵ V/A	2.38×10⁵ V/A	0.75×10⁶ V/A	2.38×10⁶ V/A
Bandwidth (BW)	90kHz	28kHz	9kHz	3kHz
Noise (RMS)	214μV	234μV	277μV	388μV
Signal Offset	±8mV(Typ.) ，±12mV(Max)