MAX3086EESD+T

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The MAX3086EESD+T is a quad-channel, low-power RS-422/RS-485 transceiver ideal for power-sensitive applications. The transceiver offers superior protection against shorts, overvoltage up to ±30V, and ±7kV electrostatic discharge (ESD).

Application Field

The MAX3086EESD+T transceiver is well-suited for industrial automation and control systems, laboratory instrumentation, automotive systems, and audio/video control systems. Specifically, it is designed to provide a reliable, low-power RS-485/RS-422 data-link standard for applications such as PC-to-computer communication, local-area-network (LAN) networks, motor control, PLCs, programmable logic controllers, SCADA systems, sensor data acquisition systems, Point-of-sale (POS) terminals, and transmission from multiple sources. Its low-power consumption also makes it especially suitable for mobile and handheld applications.

Working Principle

The MAX3086EESD+T is built on an enhanced manufacturing process that creates a patented integrated circuit architecture. Features include an over-voltage-tolerant input stage tolerant up to ±30V, diagnostic and fault diagnostics, auto-sleep mode, hot swap capability, robust ESD protection, and chip enable/disable pins that allow for power-up and power-down control. The device features a tri-state receiver that allows for bus termination, and is compliant to the IEC/EN60743-2/US-1 standard up to 8Mbps.

This device contains a quaternary transceiver arrangement, featuring four transmitter and four receiver stages. Each transmitter stage contains two enable pins (TEN01/TEN23) for independent control of the corresponding pair of transmitter outputs. The four receivers have separate enable pins to control reception of data at the input. This provides up to sixteen data paths (four transmitters and four receivers) that allow multiple systems to be interconnected in a variety of networks.

The MAX3086EESD+T also contains a Sleep mode which enables power savings. This is implemented via the sleep input pin or the EN pin. When the sleep mode is active all receiver and transmitter stages are disabled and the device consumes a small amount of Power. The device can also be put into Sleep mode during system shutdown periods, through the EN pin.

The MAX3086EESD+T features a robust electrostatic discharge (ESD) protection that is compliant to EIA/TIA-422-B and EIA/TIA-485-A standards up to ±7kV. This ESD protection allows for reliable operation and ensures the robustness of the device.

Finally, the MAX3086EESD+T has an over-voltage tolerant input stage, with an input voltage limit of ±30V. This feature ensures that the input signal is not distorted and the device and system are protected against a wide range of voltage spikes and over-voltage situations.

Conclusion

The MAX3086EESD+T quad-channel, low-power RS-422/RS-485 transceiver is an ideal solution for a variety of applications such as industrial automation, LAN networks, motor control, SCADA systems, and sensors. Its low-power consumption and robust ESD protection make it especially suitable for mobile and handheld applications. This cutting-edge transceiver also provides protection against shorts, overvoltage up to ±30V, and ±7kV electrostatic discharge (ESD).

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