Optical Sensors & Detector – Transducer for Photodiodes
Photodiode Amplifier Connect
Photodiode Amplifier Connect – Compact Signal Conditioning Interface for UV, Visible and Infrared Photodiode Sensors
The Photodiode Amplifier Connect is a compact plug-and-measure signal conditioning module designed for precise current-to-voltage conversion of photodiode outputs.
Developed by SGLUX, it provides an efficient interface between UV, VIS, or IR photodiodes and downstream electronic systems such as data loggers, controllers, or Digiboards.
Its pre-calibrated transimpedance amplifier ensures low-noise operation, high linearity, and stable output across a wide dynamic range.
The integrated connector housing simplifies mechanical and electrical installation — no soldering or external circuitry required.
Ideal for OEM integration, laboratory setups, and process monitoring, the Photodiode Amplifier Connect delivers accurate signal amplification with NIST/PTB traceable calibration.
It is fully compatible with SGLUX SiC, GaP, and Si photodiodes, forming the perfect modular building block for UV measurement, radiometric calibration, and optical process control systems.
Understanding Photodiode Amplifier Connect
The Photodiode Amplifier Connect functions as an inline transimpedance amplifier, converting photocurrents generated by UV or optical detectors into proportional voltage signals.
Its compact design integrates both the amplifier and connector in one housing, enabling direct connection to SGLUX mounted photodiodes or sensor heads.
Factory-calibrated gain resistors and temperature-stable components ensure long-term reproducibility and minimal drift.
Users can easily interface the amplifier with external displays, data loggers, or PLCs without requiring specialised electronics knowledge.
With its plug-and-play design and traceable performance, it provides a reliable foundation for precision UV sensing and industrial automation.
Technical Specifications
| Feature | Specification |
|---|---|
| Function | Inline photodiode current-to-voltage amplifier |
| Supported Sensors | SiC, GaP, Si photodiodes (UVC, UVB, UVA, VIS) |
| Channels | Single-channel configuration |
| Transimpedance Gain | Fixed or selectable 10⁶ – 10⁹ V/A (model dependent) |
| Output Voltage | 0 – 10 V DC (linear) |
| Linearity | ±0.2 % of full scale |
| Input Bias Current | < 1 pA |
| Noise Level | < 5 µV RMS |
| Bandwidth | Up to 50 kHz (gain-dependent) |
| Operating Voltage | +5 V to +24 V DC |
| Output Impedance | < 100 Ω |
| Protection | ESD, over-voltage, reverse-polarity |
| Operating Temperature | 0 … +60 °C |
| Connector Type | BNC / M8 / custom sensor connector |
| Housing | Metal inline cylinder with shielded cable exit |
| Calibration | NIST / PTB traceable |
| Compatibility | SGLUX Mounted Photodiodes, VOLTCON, Digiboard |
| Dimensions | Approx. Ø 18 mm × 60 mm |
| Weight | 90 g |
Key Features and Advantages
Plug-and-Play Inline Design
Combines amplifier and connector in one compact housing for immediate use — simply connect and measure without soldering or complex electronics.
Low-Noise, High-Precision Amplification
Engineered for picoamp-to-microamp photocurrent detection, delivering stable voltage outputs suitable for high-accuracy UV and optical applications.
Factory-Calibrated Gain
Pre-configured for optimal sensitivity; available in fixed or selectable gain versions to suit different photodiodes and irradiance levels.
Wide Compatibility
Supports SGLUX photodiodes across UVC, UVB, UVA, and visible ranges, ensuring seamless integration into radiometers and monitoring systems.
Temperature Stability and Linearity
Precision resistors and thermal compensation circuits maintain consistent gain and linearity under varying environmental conditions.
Compact and Robust Housing
Metallic enclosure provides EMI shielding and mechanical protection for reliable long-term operation in industrial or outdoor installations.
Universal Output Interface
Standardised 0 – 10 V DC output easily connects to controllers, DAQ systems, and Digiboards for further processing.
Traceable Calibration
Each unit is tested and certified against NIST/PTB standards, ensuring reproducible, traceable UV measurement results.
The Photodiode Amplifier Connect merges precision signal conditioning with ease of installation — the ideal amplifier for compact UV detectors, portable radiometers, and embedded sensor networks.
Applications Across Industries
UV Disinfection Systems
Provides reliable real-time signal amplification for UVC detectors monitoring sterilisation lamp performance.
Industrial UV Curing
Ensures accurate intensity feedback from UV lamps in printing, coating, and adhesive curing processes.
Environmental and Solar Monitoring
Amplifies UVA/UVB detector outputs for atmospheric UV Index measurement and climatological research.
Calibration and Reference Instruments
Used in laboratories for accurate signal conversion in photodiode calibration setups.
Medical and Phototherapy Devices
Delivers precise voltage outputs for UV exposure control and therapeutic dosage verification.
OEM Integration and IoT Systems
Compact form enables direct integration into custom sensor modules and smart monitoring nodes.
Compact, rugged, and traceable, the Photodiode Amplifier Connect simplifies integration while maintaining the accuracy demanded by UV measurement professionals worldwide.
Why Choose United Spectrum Instruments?
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Exclusive distributor of SGLUX Photodiode Amplifier Connect in India
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Expertise in UV detection, amplification, and calibration system integration
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Calibration traceability through NIST/PTB-certified instruments
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Competitive pricing for OEMs, laboratories, and industrial users
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Nationwide support for integration, testing, and after-sales service
FAQs
What is the Photodiode Amplifier Connect used for?
It amplifies photodiode output current into a measurable voltage signal for UV and optical monitoring.
Can it connect directly to a sensor?
Yes — the amplifier includes an integrated connector housing for direct sensor connection.
What output signal does it provide?
A 0–10 V DC linear output compatible with standard controllers and DAQs.
Is it calibrated?
Yes, every unit is factory-calibrated and traceable to NIST/PTB standards.
How does United Spectrum support customers in India?
Through integration consultation, calibration services, and nationwide technical assistance.
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Have Any Questions ?
FAQs
What is the Photodiode Amplifier Connect used for?
It amplifies photodiode output current into a measurable voltage signal for UV and optical monitoring.
Can it connect directly to a sensor?
Yes — the amplifier includes an integrated connector housing for direct sensor connection.
What output signal does it provide?
A 0–10 V DC linear output compatible with standard controllers and DAQs.
Is it calibrated?
Yes, every unit is factory-calibrated and traceable to NIST/PTB standards.
How does United Spectrum support customers in India?
Through integration consultation, calibration services, and nationwide technical assistance.

