Product Overview: MAX487ECSA+T from Maxim Integrated

The MAX487ECSA+T is a low-power, slew-rate-limited transceiver for RS-485 and RS-422 communication from Maxim Integrated. This device is designed for balanced communication lines and complies with EIA/TIA-485 communication standards. It is ideal for long transmission lines in industrial environments due to its differential signaling, which allows for robust data transmission over long distances and in noisy environments.

The MAX487ECSA+T operates from a single 5V supply and features a quiescent current as low as 300µA, making it suitable for power-sensitive applications. The integrated slew-rate-limited driver minimizes electromagnetic interference (EMI) and reduces reflections caused by improperly terminated cables, thus ensuring error-free data transmission up to 250kbps.

This transceiver is available in an 8-pin SOIC package, denoted by its ECSA suffix, and is provided in tape and reel form for automated assembly processes, indicated by the +T. The device features a 1/8-unit load receiver input impedance, which allows up to 256 transceivers on the bus, thereby enhancing the capacity for network expansion.

Key Features:

• Low-power operation with a 5V supply
• Slew-rate-limited driver for reduced EMI
• Full-duplex or half-duplex operation
• Up to 256 transceivers can be connected on the same bus (1/8-unit load)
• Thermal shutdown and short-circuit protection
• Driver and receiver can be independently disabled
• Fail-safe receiver for open, shorted, or terminated but idle data lines
• Extended ESD protection up to ±15kV for human body model

The MAX487ECSA+T is well-suited for applications that require reliable data communication with minimal power consumption, such as industrial control systems, building automation, and networked security systems. Its robust design ensures that the device can withstand the harsh conditions often found in industrial settings, while its extended ESD protection makes it resilient to the kind of electrical disturbances that can occur during installation and operation.

Overall, the MAX487ECSA+T RS-485/RS-422 transceiver is a high-quality component for designers looking to implement reliable and efficient communication interfaces in their electronic systems.