Infrared laser 237 digital blood oxygen receiving tube receiving head blood oxygen probe blood oxygen machine sensor free shipping

digital receiving tube237 dedicated digital receiver for blood oxygen machine blood oxygen probe. In a single CMOS integrated circuit integrates silicon photodiode and current- frequency inverters. The output signal is a square wave (50% duty cycle), the frequency is proportional to the intensity (irradiance) of photodiode. The digital output interface can be directly connected to microcontroller or other logic circuits. The device is in300nm to1100nm the response within the light wave range. Its characteristic is that it can be found in-40℃100 work within the temperature range of ℃, and adopt3 pin transparent epoxy resin patch package with hemispherical lens, which conforms to lead-free package mark.