(China (Mainland))
Product Summary
The ADM485AN is a differential line transceiver suitable for high speed bidirectional data communication on multipoint bus transmission lines. It is designed for balanced data transmission and complies with both EIA Standards RS-485 and RS-422. The part contains a differential line driver and a differential line receiver. Both the driver and the receiver may be enabled independently. When disabled, the outputs are tristated. The ADM485AN operates from a single +5 V power supply. Excessive power dissipation caused by bus contention or by output shorting is prevented by a thermal shutdown circuit. This feature forces the driver output into a high impedance state if during fault conditions a significant temperature increase is detected in the internal driver circuitry. Applications include Low Power RS-485 Systems, DTE-DCE Interface, Packet Switching, Local Area Networks, Data Concentration, Data Multiplexers and Integrated Services Digital Network (ISDN).
Parametrics
ADM485AN absolute maximum ratings: (1)VCC: +7 V; (2)Driver Input (DI): –0.3 V to VCC + 0.3 V; (3)Control Inputs (DE, RE): –0.3 V to VCC + 0.3 V; (4)Receiver Inputs (A, B): –14 V to +14 V; (5)Driver Outputs:–14 V to +14 V; (6)Receiver Output:–0.5 V to VCC +0.5 V; (7)Operating Temperature Range Commercial (J Version): 0℃ to +70℃; (8)Operating Temperature Range Industrial (A Version):–40℃ to +85℃; (9)Operating Temperature Range Storage Temperature Range:–65℃to +150℃; (10)Lead Temperature (Soldering, 10 sec): +300℃.
Features
ADM485AN features: (1)Meets EIA RS-485 Standard; (2)5 Mb/s Data Rate; (3)Single +5 V Supply; (4)–7 V to +12 V Bus Common-Mode Range; (5)High Speed, Low Power BiCMOS; (6)Thermal Shutdown Protection; (7)Short Circuit Protection; (8)Zero Skew Driver; (9)Driver Propagation Delay: 10 ns; (10)Receiver Propagation Delay: 25 ns; (11)High Z Outputs with Power Off; (12)Superior Upgrade for LTC485.
Diagrams
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 ADM485AN |
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IC TX/RX SINGLE RS-485 5V 8DIP |
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ADM485ANZ |
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IC TX/RX SINGLE RS-485 5V 8DIP |
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