MAX3082CSA

Product Summary

The MAX3080–MAX3089 high-speed transceivers forRS-485/RS-422 communication contain one driver andone receiver. These devices feature fail-safe circuitry,which guarantees a logic-high receiver output while thereceiver inputs are open or shorted. It means that the receiver output will be a logic high if all transmitterson a terminated bus are disabled (high impedance).The MAX3080/MAX3081/MAX3082 feature reducedslew-rate drivers that minimize EMI and reduce reflec-tions caused by improperly terminated cables, allowingerror-free data transmission up to 115kbps.
These transceivers typically draw 375μA of supplycurrent when unloaded, or when fully loaded with thedrivers disabled.

Parametrics

The absolute maximum ratings of MAX3082CSA are (1)Supply Voltage (VCC): +7V; (2)Control Input Voltage (RE, DE):-03V to (VCC + 03V); (3)Special Input Voltage(H/F, SRL, TXP, RXP):-03V to (VCC + 03V); (4)Driver Input Voltage (DI):-03V to (VCC + 03V); (5)Driver Output Voltage (A, B, Y, Z):±13V; (6)Receiver Input Voltage (A, B): ±13V; (7)Receiver Input Voltage, Full Duplex (A, B): ±25V; (8)Receiver Output Voltage (RO):-03V to (VCC + 03V); (9)Continuous Power Dissipation 8-Pin Plastic DIP (derate 909mW/°C above +70°C): 727mW; (10)8-Pin SO (derate 588mW/°C above +70°C):471mW; (11)14-Pin Plastic DIP (derate 100mW/°C above +70°C): 800mW; (12)14-Pin SO (derate 833mW/°C above +70°C):667mW; (13)Operating Temperature RangesMAX308_C_ _: 0°C to +70°C; (14)MAX308_E_ _:-40°C to +85°C; (15)Storage Temperature Range: -65°C to +150°C; (16)Lead Temperature (soldering, 10sec): +300°C

Features

The features of MAX3082CSA can be summarized as
(1)True Fail-Safe Receiver While Maintaining EIA/TIA-485 Compatibility;
(2)Enhanced Slew-Rate Limiting Facilitates Errr-Free Data Transmissin (MAX3080-MAX3085/MAX3089);
(3)1nA Lw-Current Shutdwn Mde (except MAX3081/MAX3084/MAX3087);
(4)Pin-Selectable Full/Half-Duplex Operatin (MAX3089);
(5)Phase Cntrols to Crrect for Twisted-Pair Reversal (MAX3089);
(6)Allw Up to 256 Transceivers on the Bus

Diagrams

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