Novel 100 element hybridised linear silicon photodiode array operating from 350 to 1100nm for applications such as particle counting, medical nstrumentation, and industrial sensing
AP Technologies announces that Advanced Photonix has introduced a novel, 100 element, hybridised, linear silicon photodiode array operating from 350 to 1100nm and targeting applications such as particle counting, medical instrumentation, and industrial sensing.
These new arrays utilise API's propriety opaque polymer coating process to create a mask which blocks any light outside the pixels, improving spatial fidelity and hence spatial resolution.
With traditional array technology incident light beyond the edge of the active pixel area can cause spurious signals.
In order to simplify implementation, maximise the signal-to-noise ratio, and enhance final system performance the array is directly hybridised with 1M-Ohm gain transimpedance amplifiers (one per detector element) and mounted on a printed circuit board.
The hybrid circuit draws on API's extensive experience in detector system design to provide high stability and minimal noise, together with carefully managed oscillation and overshoot characteristics.
In the standard product an AC-coupled configuration is used, however amplifier characteristics as well as the array configuration can be customised.
Nominal device specifications include a pixel size of 45x50µm with a pitch of 55µm; the entire PCB measures 101x178 mm.
