DatasheetsPDF.com

ADM3485E

Analog Devices
Part Number ADM3485E
Manufacturer Analog Devices
Description EIA RS-485/RS-422 Transceiver
Published Mar 23, 2005
Detailed Description ±15 kV ESD-Protected, 3.3 V,12 Mbps, EIA RS-485/RS-422 Transceiver ADM3485E FEATURES TIA/EIA RS-485/RS-422 compliant ±1...
Datasheet PDF File ADM3485E PDF File

ADM3485E
ADM3485E

Overview
±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 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.
Rev.
D Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice.
No l...


Similar Datasheet


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)