MAXIM MAX14781EESA+

The MAX14781E +5V, half-duplex ±25KV ESD-protected RS-485 transceiver features integrated automatic polarity correction to ensure that miswired A and B lines are autonomously corrected, simplifying equipment and network installation. The MAX14781E includes slew-rate limited drivers that minimize EMI, allowing for error-free data transmission up to 370kbps. This device includes fail-safe circuitry, guaranteeing a logic-high receiver output when the receiver inputs are shorted or open. Hot-swap functionality on the receiver and driver enable inputs also eliminates false transitions on the bus during power-up or live insertion. The MAX14781E features a 1/8 -unit load receiver input impedance, allowing up to 256 transceivers on the bus. All driver outputs are protected up to ±25KV ESD using the Human Body Model. The MAX14781E is available in an 8-pin SO package and operates over the extended -40℃ to +85℃ temperature range.

• Automatic Polarity Correction
• Integrated Protection Increases Robustness
• High ESD Protection: ±25kV HBM ESD, ±15kV IEC 61000 - 4 - 2 Air Gap Discharge ESD, ±9kV IEC 61000 - 4 - 2 Contact Discharge ESD
• True Fail - Safe Receiver
• Hot - Swap Functionality
• +5V Operation
• Low 10μA (max) Shutdown Current
• Extended -40℃ to +85℃ Operating Temperature

• Power Meter Networks
• HVAC Networks
• Control Systems