ISL4485E

DATASHEET ISL4485E ±15kV ESD Protected, 20Mbps, 5V, Low Power, RS-485/RS-422 Transceiver FN6049 Rev 4.00 Oct 8, 2018 The ISL4485E is a high speed, BiCMOS 5V powered, single transceiver that meets both the RS-485 and RS-422 standards for balanced communication. Each driver output/receiver input is protected against ±15kV ESD strikes without latch-up. Unlike competitive devices, this device is specified for 10% tolerance supplies (4.5V to 5.5V). The excellent differential output voltage coupled with high drive-current output stages allow 20Mbps operation over twisted pair networks up to 450ft in length. The 25kΩ receiver input resistance presents a single unit load to the RS-485 bus, allowing up to 32 transceivers on the network. The receiver (Rx) inputs feature a “fail-safe if open” design, which ensures a logic high Rx output if the Rx inputs are floating. The driver (Tx) outputs are short-circuit protected, even for voltages exceeding the power supply voltage. Additionally, ...