The MAX491CSD+T is an Integrated Circuit (IC) component that offers high-speed and low-power RS-485/RS-422 data bus interface protection. It is commonly used in applications where reliable communication is required over long distances, such as industrial control systems, factory automation, and telecommunications.
One of the key features of the MAX491CSD+T is its ability to protect against voltage transients and bus faults. It has a wide operating voltage range of 3V to 5.5V, which allows it to be compatible with a variety of power supply sources. This IC component can withstand ±15kV electrostatic discharge (ESD) protection on the bus pins without any additional external components.
Additionally, the MAX491CSD+T offers excellent differential impedance matching and extended common-mode voltage range. It supports data rates of up to 2.5Mbps, making it suitable for high-speed communication applications. It also features a low supply current of only 300µA, which helps in reducing power consumption and extending battery life in portable devices.
The MAX491CSD+T is designed with a fail-safe receiver that ensures the bus remains in a known state during idle or open-circuit conditions. It has a receiver input threshold hysteresis, which prevents the receiver from false triggering due to noise or disturbances on the bus
