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ADM3485E Datasheet

Part Number ADM3485E
Manufacturers Analog Devices
Logo Analog Devices
Description EIA RS-485/RS-422 Transceiver
Datasheet ADM3485E DatasheetADM3485E Datasheet (PDF)

±15 kV ESD-Protected, 3.3 V,12 Mbps, EIA RS-485/RS-422 Transceiver ADM3485E FEATURES TIA/EIA RS-485/RS-422 compliant ±15 kV ESD protection on RS-485 input/output pins 12 Mbps data rate Half-duplex transceiver Up to 32 nodes on the bus Receiver open-circuit, fail-safe design Low power shutdown current Outputs high-Z when disabled or powered off Common-mode input range: −7 V to +12 V Thermal shutdown and short-circuit protection Industry-standard 75176 pinout 8-lead narrow SOIC package APPLICATIO.

  ADM3485E   ADM3485E






Part Number ADM3485
Manufacturers Analog Devices
Logo Analog Devices
Description (ADM3483 - ADM3491) RS-485/RS-422 Transceivers
Datasheet ADM3485E DatasheetADM3485 Datasheet (PDF)

3.3 V Slew Rate Limited, Half- and Full-Duplex, RS-485/RS-422 Transceivers Data Sheet FEATURES Operate with 3.3 V supply Interoperable with 5 V logic EIA RS-422 and RS-485 compliant over full common-mode range Data rate options ADM3483/ADM3488: 250 kbps ADM3485/ADM3490/ADM3491: 10 Mbps Half- and full-duplex options Reduced slew rates for low EMI (ADM3483 and ADM3488) 2 nA supply current in shutdown mode (ADM3483/ADM3485/ADM3491) Up to 32 transceivers on the bus −7 V to +12 V bus common-mode rang.

  ADM3485E   ADM3485E







EIA RS-485/RS-422 Transceiver

±15 kV ESD-Protected, 3.3 V,12 Mbps, EIA RS-485/RS-422 Transceiver ADM3485E FEATURES TIA/EIA RS-485/RS-422 compliant ±15 kV ESD protection on RS-485 input/output pins 12 Mbps data rate Half-duplex transceiver Up to 32 nodes on the bus Receiver open-circuit, fail-safe design Low power shutdown current Outputs high-Z when disabled or powered off Common-mode input range: −7 V to +12 V Thermal shutdown and short-circuit protection Industry-standard 75176 pinout 8-lead narrow SOIC package APPLICATIONS Power/energy metering Telecommunications EMI-sensitive systems Industrial control Local area networks GENERAL DESCRIPTION The ADM3485E is a 3.3 V, low power data transceiver with ±15 kV ESD protection, suitable for half-duplex communication on multipoint bus transmission lines. The ADM3485E is designed for balanced data transmission and complies with TIA/EIA standards RS­485 and RS-422. The ADM3485E is a half-duplex transceiver that shares differential lines and has separate enable inputs for the driver and the receiver. The devices have a 12 kΩ receiver input impedance, which allows up to 32 transceivers on a bus. Because only one driver FUNCTIONAL BLOCK DIAGRAM ADM3485E RO R RE DE DI D B A 03338-001 Figure 1. should be enabled at any time, the output of a disabled or powered-down driver is tristated to avoid overloading the bus. The receiver has a fail-safe feature that ensures a logic high output when the inputs are floating. Excessive power dissipation caused by bus content.


2005-03-23 : 2N2857CSM    2N2880    2N2891    2N2894    2N2894    2N2894    2N2894A    2N2894ACSM    2N2894CSM    2N2894DCSM   


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