EL211(TA)

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Optoisolators are an important type of optical components used in a wide variety of applications today. In particular, EL211 is a common type of optoisolator. This article gives an overview of its application area and working principle.

EL211 (TA) optoisolator is a high-performance optoisolator designed for current transfer applications. It consists of a phototransistor output optocoupler, a monolithically integrated optically isolated amplifier and a low-profile package. It provides an isolation voltage of 5kV with a 6.9V breakdown voltage.

EL211 (TA) optoisolator is primarily used for transferring output signal from application circuits requiring very low signal level (down to 0.5V) to higher current logic levels. This allows for direct connection to TTL logic levels, minimizing the effect of noise in the signal chain.

The working principle of EL211 (TA) optoisolator is based on the fact that light propagates through the optical fiber but does not pass through the opaque material like insulation material. The physical isolation created by this property makes it an ideal choice for electrical isolation.

The EL211 (TA) optoisolator consists of two parts: the sending and receiving path. The sending path contains an infrared LED which is used to transmit the signal through the optical fiber-insulated material. The receiving path consists of phototransistor output optocoupler which provides the current level to the receiving circuitry.

The current produced by the phototransistor optocoupler is proportional to the intensity of light received from the LED. When the LED is energized, the infrared radiation is reflected off the insulated material, and then strikes the phototransistor. This creates a current signal which is amplified by the integrated amplifier, and then passed to the receiving circuitry.

The EL211 (TA) optoisolator is a differential type optoisolator, meaning that the output is a differential signal rather than a single voltage level. This increases the system reliability because it prevents the occurrence of static noise that could otherwise cause malfunction of the system.

In addition to providing physical isolation from the power and signal lines, the EL211 (TA) optoisolator also provides high voltage security. The monolithic integrated optically isolated amplifier provides up to 5kV isolation, which is more than enough to protect against most electrical transients.

The EL211 (TA) optoisolator is widely used in a variety of applications such as automotive control systems, industrial automation, medical imaging systems, consumer electronics, and military systems. Thanks to its high performance, reliability, and low power consumption, it is a popular choice for these and other applications.

In conclusion, the EL211 (TA) optoisolator is a reliable and efficient optoisolator device, primarily used for current transfer. Its wide application area, superior performance, and safety features make it a popular choice for a variety of applications.

The specific data is subject to PDF, and the above content is for reference