Optocoupler/LED/nixie tube/photoelectric device

The 4N29M, 4N30M, 4N32M, 4N33M, H11B1M, and TIL113 contain a GaAs infrared emitter optically coupled to a silicon planar Darlington amplifier.

The FOD073L optocoupler consists of an AlGaAs LED optically coupled to a high gain split Darlington photodetector. The device is specified to operate at 3.3V. The split Darlington configuration separates the input photodiode and first-stage gain from the output transistor, which reduces output saturation voltage and increases operating speed compared to traditional Darlington phototransistor optocouplers. Integrated emitter-base resistors provide best-in-class stability over temperature. The combination of an extremely low input current of 0.5mA and a high current transfer rate of 2000% makes this device ideal for interfacing with MOS, CMOS, LSTTL and EIA RS232C inputs while ensuring output compatibility with LVCMOS and high fanout LVTTL Require. An internal noise shield provides excellent common-mode rejection of 10 kV/µs.

The FOD2741 opto-isolated amplifier includes the popular KA431 precision programmable shunt voltage reference and optocoupler. The optocoupler is a gallium arsenide (GaAs) light-emitting diode optically coupled to a silicon phototransistor. It has 3 levels of reference voltage with tolerance = 2%, 1% and 0.5%. The range of current transfer ratio (CTR) is 100%-200%. It also has an outstanding temperature coefficient of 50 ppm/°C. It is primarily used as an error amplifier/reference voltage/optocoupler in isolated AC-to-DC power supplies and DC/DC converters. When using the FOD2741, power supply designers can reduce the number of components and save space in tight encapsulation designs. Tight tolerance references make adjustments unnecessary in many applications. The device features an 8-pin DIP white encapsulation.

The 4N29M, 4N30M, 4N32M, 4N33M, H11B1M, and TIL113 contain a GaAs infrared emitter optically coupled to a silicon planar Darlington amplifier.

The 6N135M, 6N136M, HCPL4503M, HCPL2530M, and HCPL2531M optocouplers consist of an AlGaAs LED optically coupled to a high-speed phototransistor. A separate connection for photodiode biasing reduces the base-collector capacitance of the input transistor and is orders of magnitude faster than conventional phototransistors. The HCPL4503M has no internal connection to the phototransistor base, improving noise immunity. Internal interference shielding provides excellent common-mode rejection up to 50,000 V/µs.