ADM2490EBRWZ-REEL7

高速， ESD保护，全双工， iCoupler隔离RS- 485收发器 High Speed, ESD-Protected, Full-Duplex, iCoupler Isolated RS-485 Transceiver

Product Details

The ADM2490E is an isolated data transceiver with ±8 kV ESD protection that is suitable for high speed, full-duplex communication on multipoint transmission lines. It is designed for balanced transmission lines and complies with ANSI TIA/EIA-485-A-1998 and ISO 8482: 1987E. The device employs Analog Devices, Inc., iCoupler® technology to combine a 2-channel isolator, a three-state differential line driver, and a differential input receiver into a single package.

The differential transmitter outputs and receiver inputs feature electrostatic discharge circuitry that provides protection to ±8 kV using the human body model HBM. The logic side of the device can be powered with either a 5 V or a 3 V supply, whereas the bus side requires an isolated 5 V supply.

The device has current-limiting and thermal shutdown features to protect against output short circuits and situations where bus contention could cause excessive power dissipation.

The ADM2490E is available in a wide body, 16-lead SOIC package and operates over the −40°C to +105°C temperature range.

Applications

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Isolated RS-485/RS-422 Interfaces

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Industrial Field Networks

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INTERBUS

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Multipoint Data Transmission Systems

### Features and Benefits

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Isolated, full-duplex RS-485/RS-422 transceiver

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±8 kV ESD protection on RS-485 input/output pins

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16 Mbps data rate

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Complies with ANSI TIA/EIA-485-A-1998 and ISO 8482: 1987E

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Suitable for 5 V or 3 V operation VDD1

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High common-mode transient immunity: >25 kV/μs

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Receiver has open-circuit, fail-safe design

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32 nodes on the bus

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Thermal shutdown protection

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Safety and regulatory approvals

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UL recognition: 5000 V rms isolation voltage for 1 minute per UL 1577

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VDE certificate of conformity

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DIN EN 60747-5-2 VDE 0884-10 Part 2: 2003-01

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DIN EN 60950 VDE 0805: 2001-12; EN 60950: 2000

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VIORM = 848 V peak

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Operating temperature range: −40°C to +105°C

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Wide body, 16-lead SOIC package