The SMP series is an established standard range of discrete Silicon PiN Photodiodes in a selection of packages.

Features:
• A range of active areas between 0.62mm² to 100mm²
• Choice of optical filters

The SMPX500 series is a range of integrated photodiode amplifiers incorporating a 1.75mm² silicon PiN photodiode, operational amplifier and transimpedance circuitry. The devices provide a voltage output proportional to incident light.

Features:
• Broad range of gain & frequency response options
• Low capacitance 1.75mm² active area photodiode
• Good frequency response
• Wide dynamic range

The SMPX140 series is a range of hybrid opto-electronic components incorporating a 15mm² PiN photodiode, operational amplifier and transimpedance circuitry. The photodiode is operated at zero bias for best linearity and lowest dark current.

Features:
• 15mm² active area photodiode
• High sensitivity in applications where detection is required over a large area

The SMPX600 series is a range of LED emitters incorporating an internal monitor photodiode providing a controlled and stabilised light source.

Features:
The photodiode is close coupled to an internal transimpedance amplifier giving a voltage output that increases proportionately with LED light output. This can be used with a variety of external circuit configurations, allowing current to the LED to be controlled and adjusted as required. A variety of LED wavelengths are available to suit different applications. Custom wavelengths are available on request. The device operates from a single rail supply of +4 to +18V.

The SMPMOD series is a standard range of Silicon PiN Photodiode Arrays in a selection of package options. Active areas of between 0.62mm2 to 100mm2 are available to suit various applications, packages and optical filters.

Applications:
• Document size measurements
• Optical character recognition
• Metrology applications
• Process monitoring
• Position Detection