Marktech unveils low capacitance, high-speed silicon photodiodes

The new silicon photodiodes feature a significantly reduced junction capacitance (Cj), crucial for improving key performance metrics such as response time, frequency response, and bandwidth. The low capacitance allows for faster response times by minimising the time needed for charge carriers to traverse the P-N junction. The advanced Si PDs are achieved through improved photodiode design configurations and our Series 4 silicon process technology enhancements.

In addition to the standard version, Marktech offers an isolated version of these photodiodes. The isolated version utilises a ceramic submount to insulate the detector chip from the metallic TO metal package, effectively reducing noise during detection. This makes the photodiodes particularly well-suited for environments where signal integrity is paramount.

The new high-speed photodiodes are indispensable in various applications, including cameras, video imaging systems, optical communication, biomedical imaging, security systems, night vision devices, gas sensing, and motion detection. Their ability to accurately convert light into electrical signals with minimal delay ensures superior performance in monitoring rapidly pulsed LED and laser light sources, spectroscopy, flame and gas monitors, motion and presence sensors, medical diagnostic devices, fluorometers, currency validators, automotive ADAS sensors, and more.

Key features and applications:

• Low junction capacitance (Cj): enhances response time and bandwidth, enabling superior high-frequency operation.
• High-speed response: ideal for applications requiring rapid detection and signal processing.
• Isolated version: features a ceramic submount for reduced noise, ensuring high signal integrity.
• Versatile applications: suitable for optical communication, biomedical imaging, motion detection, and more.

Marktech’s new low-capacitance, high-speed silicon photodiodes are now available and can be tailored to meet specific application needs.

The MT03-084 is a square (3.87mm x 3.87mm) 15mm² active area Silicon Photodiode in an isolated, hermetic TO-5 package with a UV transmitting glass window, optimised for applications requiring high sensitivity in the 300 to 560nm region (UVA, Blue & Green). MT03-084 Datasheet PDF

The MT03-083 is a square (3.87mm x 3.87mm) 15mm² active area Silicon Photodiode in a hermetic TO-5 metal can package with a UV transmitting glass window (no isolating ceramic submount). It is optimised for applications requiring high sensitivity in the 300 to 560nm region (UVA, Blue & Green). MT03-083 Datasheet PDF