HCPL-7840#300

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The HCPL-7840#300 is a device belonging to the family of linear-amplifiers, instrumentation, and op-amps, buffer amps. It is a dc-matched, bipolar gallium arsenide (GaAs) Optocoupler with high-speed output transistor, a 24-mA current transfer ratio at 4.5V, and low input current noise. Utilizing the latest technology and incorporating several advantages, the HCPL-7840#300 is suitable for a wide variety of applications.

Features of the HCPL-7840#300

The HCPL-7840#300 is designed with a high degree of performance, flexibility and reliability in mind. Its features include:

• A 3.2V to 4.5V common-mode input range
• A 3.2V to 4.5V common-mode output range
• A 24-mA current transfer ratio at 4.5V
• A wide operating temperature range of -55°C to +125°C
• Up to 12 kV/µs electrical isolation voltage
• Low input current noise and fast settling time

The HCPL-7840#300 is also designed to be economical, efficient and reliable for a variety of applications.

Applications of the HCPL-7840#300

The HCPL-7840#300 is suitable for a wide range of applications, including:

• Line receivers
• PDM/PWM application
• High-speed digital communications
• Digital isolators for industrial and medical applications
• Industrial communication interface
• Ground loop elimination
• Motion control
• Smart card applications
• Automation controls

Working Principle of the HCPL-7840#300

The HCPL-7840#300 works by utilizing the effects of optical transmission in its GaAs DC-matched package. This device includes an LED emitter, a base terminal, and a photodiode detector. The LED emitter sends a light signal to the detector via the base terminal. When a voltage is applied to the base terminal, the LED turns on, and a current starts to flow through the device. The current is measured by the photodiode detector and converted into output voltage. The detector then feeds the output voltage back to the base terminal, which in turn controls the LED to ensure the output voltage remains constant.

The device is designed to provide reliable performance over a wide range of applications. Its current transfer ratio, output voltage range, input current noise, and wide operating temperature range make it an ideal choice for a variety of applications.

Conclusion

The HCPL-7840#300 is a DC-matched, bipolar gallium arsenide (GaAs) optocoupler with high-speed output transistor and a wide operating temperature range. It is designed for line receivers, PDM/PWM application, high-speed digital communications, digital signal isolation and ground loop elimination. Its 24-mA current transfer ratio, 3.2V to 4.5V output voltage range, and up to 12 kV/µs electrical isolation voltage make it suitable for a variety of applications. The device works by utilizing the effect of optical transmission to transfer current and voltage with a high degree of accuracy.

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