The MAX3085EEPA+ from Maxim Integrated Products is a ±15KV ESD protected, fail-safe, slew rate limited RS485/RS422 transceiver in 8 pin DIP package. It contains one driver and one receiver. The device features fail-safe circuitry which has a logic high receiver output when the receiver inputs are open or shorted. This means that the receiver output will be logic high if all transmitters on a terminated bus are disabled (high impedance). The transmitter output and receiver input is protected by ±15KV using human body model with enhanced ESD protection. This transceiver typically draws 375µA of supply current when unloaded or when fully loaded with the drivers disabled. It has a 1/8 unit load receiver input impedance that allows up to 256 transceivers on the bus. Typical applications include RS422/RS485 communications, level translators, transceivers for EMI sensitive applications and industrial control local area networks.
● Supply voltage range from 4.75V to 5.25V, operating temperature range from -40°C to 85°C
● Offers higher driver output slew rate limits allowing transmit speeds up to 500Kbps
● Intended for half duplex communication
● True fail-safe receiver while maintaining EIA/TIA485 compatibility
● 1nA low current shutdown mode
● Features receiver/driver enable function
● Enhanced slew rate limiting facilitates error free data transmission
● Differential driver output (no load) of 5V
● Industrial Control Local Area Networks; Level Translators; RS-422/RS-485 Communications; Transceivers for EMI-Sensitive Applications
