Features and Benefits
- Low 20µA Operating Current
- Slew-Rate Limited for Reduced EMI and Reduced Reflections
- 0.1µA Low-Current Shutdown Mode
- Designed for RS-485 and RS-422 Applications
- Operate from a Single +5V Supply
- -7V to +12V Common-Mode Input Voltage Range
- Allows up to 256 Transceivers on the BusGuaranteed (1/8-unit load)
- Current Limiting and Thermal Shutdown for Driver Overload Protection
The MAX1482 and MAX1483 are low-power transceivers for RS-485 and RS-422 communication. Both feature slew-rate-limited drivers that minimize EMI and reduce reflections caused by improperly terminated cables. Data rates are guaranteed up to 250kbps.
The MAX1482/MAX1483 draw only 20µA of supply current. Additionally, they have a low-current shutdown mode that consumes only 0.1µA. Both parts operate from a single +5V supply.
Drivers are short-circuit current limited and are protected
against excessive power dissipation by thermal
shutdown circuitry that places the driver outputs into a
high-impedance state. The receiver input has a fail-safe
feature that guarantees a logic-high output if the input
is open circuit.
The MAX1482 is full duplex and the MAX1483 is half duplex. Both parts have a 1/8-unit-load input impedance that guarantees up to 256 transceivers on the bus.
- Industrial Control Local Area Networks
- Large 256-Node LANs
- Low-Power RS-485/RS-422 Networks
- Transceivers for EMI-Sensitive Applications
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation & Resources
Tools & Simulations
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
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