VEMD8082: Vishay’s new silicon PIN photodiode that enhances sensitivity in biomedical applications
VEMD8082: Vishay’s new silicon PIN photodiode that enhances sensitivity in biomedical applications
Vishay Intertechnology has introduced the VEMD8082 silicon PIN photodiode, an innovative component designed to offer improved sensitivity in biomedical applications. This photodiode stands out for its advanced features, making it ideal for applications in the visible and near-infrared ranges. Below, we present the main advantages and applications of this revolutionary product.
The VEMD8082 provides enhanced sensitivity, essential for precise detection applications. With dimensions of 4.8 mm x 2.5 mm x 0.5 mm, its compact size facilitates integration into low-profile devices such as smartwatches. Its sensitive radiant detection area of 6.0 mm² allows for greater light capture, and its reverse light current of 40 µA at 850 nm offers an 18% to 20% increase compared to previous generation solutions, depending on the wavelength.
Additionally, its low capacitance of 46 pF reduces interference and improves measurement accuracy, while rise and fall times of 40 ns enable higher sampling rates compared to previous models. Its ±65° half-sensitivity angle provides wider coverage for light detection. It is compatible with infrared reflow soldering processes, facilitating integration into manufacturing workflows, and complies with RoHS and Vishay Green standards, being halogen-free and environmentally friendly.
Specifications
- Sensitive radiant area: 6.0 mm²
- Dimensions: 4.8 mm x 2.5 mm x 0.5 mm
- Spectral bandwidth range: 350 nm to 1100 nm – Typical reverse light current: o 25 µA at 525 nm o 40 µA at 850 nm o 38 µA at 940 nm
- Diode capacitance: 46 pF
- Rise time: 40 ns
Market Applications
The VEMD8082 is specially designed for biomedical applications such as heart rate and blood oxygen monitoring. Its high sensitivity is crucial for techniques such as photoplethysmography (PPG), which measures changes in blood volume and blood flow by detecting light absorbed or reflected by blood vessels. This capability is essential for the diagnosis and monitoring of cardiovascular diseases.
Vishay’s VEMD8082 pin photodiode is an excellent choice for any application requiring high sensitivity and precision light detection. At RC Microelectronics, we are excited to offer this innovative product to our customers and support the advancement of biomedical technologies and other critical fields.
