The MAX13448E full-duplex RS-485 transceiver features inputs and outputs fault protected up to ±80V (with respect to ground). The device operates from a +3.0V to +5.5V supply and features true fail-safe circuitry, guaranteeing a logic-high receiver output when the receiver inputs are open or shorted. This enables all receiver outputs on a terminated bus to output logic-high when all transmitters are disabled.
The MAX13448E features a slew-rate limited driver that minimizes EMI and reduces reflections caused by improperly terminated cables, allowing error-free data transmission at data rates up to 500kbps with a +5V supply, and 250kbps with a +3.3V supply.
The MAX13448E includes a hot-swap capability to eliminate false transitions on the bus during power-up or hot insertion. The driver and receiver feature active-high and active-low enables, respectively, that can be connected together externally to serve as a direction control.
The MAX13448E features an 1/8-unit load receiver input impedance, allowing up to 256 transceivers on the bus. All driver outputs are protected to ±8kV ESD using the Human Body Model. The MAX13448E is available in a 14-pin SO package and operates over the extended -40°C to +85°C temperature range.
Key Features
Applications/Uses
±80V Fault Protection on the RS-485 I/O Ports
True Fail-Safe Receiver
Hot-Swap Input Structure on DE
ESD Protection on the RS-485 I/O Ports ±8kV Human Body Model
Slew-Rate Limiting Facilitates Error-Free Data Transmission
1/8-Unit Load Allows Up to 256 Transceivers on the Bus
-7V to +12V Common-Mode Input Voltage Range
+3.0V to +5.5V Operating Supply Voltage
Available in 14-Pin SO Package
HVAC Control Systems
Industrial Control Systems
Motor Driver Control Systems
Utility Meters
Key Specifications:
RS-422/485 Line Driver/Receivers
Notes: **This pricing is BUDGETARY, for comparing similar parts. Prices are in
U.S. dollars and subject to change. Quantity pricing may vary
substantially and international prices may differ due to local
duties, taxes, fees, and exchange rates. For volume-specific prices
and delivery, please see the price and availability page
or contact an authorized distributor.
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