HomedatasheetADM3485EARZ

ADM3485EARZ Datasheet

Interface - Drivers, Receivers, Transceivers
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Description

The ADM3485EARZ 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 ADM3485EARZ is designed for balanced data transmission and complies with TIA/EIA standards RS­485 and RS-422. The ADM3485EARZ 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 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 contention or by output shorting is prevented with a thermal shutdown circuit. The part is fully specified over the industrial temperature range and is available in an 8-lead narrow SOIC package. ADM3485EARZ 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 ADM3485EARZ Applications • Power/energy metering • Telecommunications • EMI-sensitive systems • Industrial control • Local area networks
Features

Parameters

[{"Name":"Number of Drivers/Receivers ","Value":"1/1"},{"Name":"Receiver Hysteresis ","Value":"50mV "},{"Name":"Data Rate ","Value":"10Mbps "},{"Name":"Voltage - Supply ","Value":"3 V ~ 3.6 V "},{"Name":"Operating Temperature ","Value":"-40°C ~ 85°C "},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""}]

Manufacturer information

QT OPTOELECTRONICS
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