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Digital Isolators

The MAX14931EASE+T is a digital isolator integrated circuit with very high common-mode transient immunity. This integrated circuit belongs to the digital isolator category and provides an opto-isolated communication link between two isolated circuits or two separate sections of a circuit. This IC is especially used in the electrical systems that may be affected by high levels of noise or electric interference.

Application Field

The MAX14931EASE+T is widely used in many different application fields such as modem, laptop, HVAC, automotive, consumer electronics, military, aerospace, and medical electronics. It offers a cost-effective solution for devices requiring data communication between circuits isolated from one another. The device provides improved signal transmission reliability with high common-mode transient immunity up to 40kV/μs.

The MAX14931EASE+T is designed to be a system-on-chip (SoC) for various applications. This device is optimized to be used as an interface between different logic families such as RS-422, RS-485, RS-232, Ethernet, and CAN. Its package allows for a very low-profile and space-saving design for space-constrained applications.

Working Principle

The working principle of the MAX14931EASE+T is based on opto-coupling technology. It utilizes a combination of high-intensity optical emitters and detectors for efficient data transmission. The device consists of two separate parts, a transmitter and a receiver. The transmitter part transmits the data via an optical signal, and the receiver part decodes the optical signal into the original data.

The optical output power of the MAX14931EASE+T is adjustable depending on the dynamic range requirements of the system. The device is suitable for data transfer rates up to 3Mbps. The input signal voltage range is from 0 to +5V, and with a low power requirement of 2.2V, the device is ideal for cost-sensitive applications.

The MAX14931EASE+T also offers an embedded set of features such as Automatic Gain Compensation (AGC) and Automatic Dynamic Power Control (ADPC). The AGC feature minimizes inter-symbol interference, while the ADPC feature enables the transmitter to adjust theoptical output power as needed to maintain robust data communication while saving power.

Conclusion

In conclusion, the MAX14931EASE+T is a cost-effective solution for digital isolator applications that require high common-mode transient immunity and reliable data transmission. Its opto-coupling technology allows for efficient data communication between two separate sections of a circuit or between two isolated circuits. It is also optimized for various data communication interfaces and can be used in a range of different application fields.

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