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 eature 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.
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Low-Power RS-485/RS-422 NetworksTransceivers for EMI-Sensitive ApplicationsIndustrial-Control Local Area NetworksLarge 256-Node LANs
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1% Sensor Signal Conditioning Corrects Sensor Errors Using Coefficients Storedin External Trimmable Resistors, Potentiometers,or DACs Compensates Offset, Offset TC, FSO, FSO TC,and FSO Linearity Rail-to-Rail® Analog Output Programmable Current Source for SensorExcitation Fast Signal-Path Settling Time (< 1ms) Accepts Sensor Outputs from 10mV/V to 30mV/V Fully Analog Signal Path
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Supply Voltage (VCC) ..............................................................7V
Control Input Voltages (RE, DE) ................-0.5V to (VCC + 0.5V)
Driver Input Voltage (DI)...........................-0.5V to (VCC + 0.5V)
Driver Output Voltages ........................................-7.5V to 12.5V
Receiver Input Voltages (A, B) .............................-7.5V to 12.5V
Receiver Output Voltage (RO)....................-0.5V to (VCC + 0.5V)
Continuous Power Dissipation............................... (TA = +70°C)
8-Pin Plastic DIP (derate 9.09mW/°C above +70°C) ......727mW
14-Pin Plastic DIP (derate 10.00mW/°C above +70°C) ..800mW
8-Pin SO (derate 5.88mW/°C above +70°C)...................471mW
14-Pin SO (derate 8.33mW/°C above +70°C).................667mW
8-Pin µMAX (derate 4.10mW/°C above +70°C) ..............330mW
Operating Temperature Ranges
MAX148_C_ _ .......................................................0°C to +70°C
MAX148_E_ _.........................................-40°MAX1482/MAX1483
20µA, 1⁄8-Unit-Load, Slew-Rate-Limited
RS-485 Transceivers
Supply Voltage (VCC) ..............................................................7V
Control Input Voltages (RE, DE) .................-0.5V to (VCC + 0.5V)
Driver Input Voltage (DI)............................-0.5V to (VCC + 0.5V)
Driver Output Voltages .........................................-7.5V to 12.5V
Receiver Input Voltages (A, B) ..............................-7.5V to 12.5V
Receiver Output Voltage (RO)....................-0.5V to (VCC + 0.5V)
Continuous Power Dissipation............................... (TA = +70°C)
8-Pin Plastic DIP (derate 9.09mW/°C above +70°C) ......727mW
14-Pin Plastic DIP (derate 10.00mW/°C above +70°C) ..800mW
8-Pin SO (derate 5.88mW/°C above +70°C)...................471m
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Required Field 
