New low capacitance and high-speed silicon photodiodes offer 3X response speed

The new Marktech Optoelectronics Series 4 silicon photodiodes have tripled the response speed (25ns vs 80ns) compared to its current Series 4 PDs with the same active area.

The new silicon photodiodes provide a notably reduced Cj, which is crucial for improving key performance metrics such as response time, frequency response, and bandwidth. The low capacitance permits faster response times by minimising the time required for charge carriers to traverse the P-N junction. The advanced Si PDs are achieved through enhanced photodiode design configurations and its Series 4 silicon process technology enhancements.

The company offers an isolated version of these photodiodes in addition to the standard version. The isolated version uses a ceramic submount to insulate the detector chip from the metallic TO metal package, effectively decreasing noise during detection. This makes the photodiodes particularly suited to environments where signal integrity is paramount.

The new high-speed photodiodes are indispensable in various cutting-edge 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.

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. It is optimised for applications requiring high sensitivity in the 300 to 560nm region (UVA, Blue, and Green).

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 needing high sensitivity in the 300 to 560nm region (UVA, Blue and Green).