RS - analog devices 485 transceiver first meet strict surge of IEC standard

Analog Devices corporation today announced the industry's first through the level 4 RS - EMC certification of surge protection 485 transceivers, therefore no external transient voltage surge suppression device. Used Analog DevicesiCoupler® Of electrical isolation ADM2795E magnetic isolation technique and the isolation ADM3095E can save a space and the number of components, accelerate time to market, and greatly reduces the regulatory compliance issues. Integrated fault protection provided by the device can prevent damage of potentially damaging voltage communication interface, this may be by fault, surge, electrostatic discharge ( ESD） And wiring errors caused.

use new rs-five 485 transceiver design personnel no longer requires a separate design, testing, validation and officially certified by the implementation of regulatory, because these components have obtained the necessary approval. Moreover, does not need external protection components, which eliminates the discrete device with the user's choice of particular RS - 485 transceivers that match the needs. It can also be RS - for a higher density Port 485 to provide a simplified BOM and smaller plate space occupied space.

- ADM2795E and ADM3095E RS Transceiver in accordance with IEC61000-485 4 - 5 level 4 surge protection requirements, as well as industrial anti-jamming standard (IEC Radiation, conduction and magnetic field immunity) And EMC ESD protection, electrical fast transient ( EFT) Surge. These two components are accord with TIA/EIA RS - 485 / RS - 422 standards, can provide 3 V to 5. The 5 V full range of power supply. In addition, it provides available evaluation board, IBIS model, safety and regulatory conformance certificate, RS - as well as video and application notes 485 transceivers greatly simplifies the design process. Key specifications include:

5 kV RMS isolated RS - 485 / RS - 422 transceiver ( ADM2795E)

the certification of IEC 61000 - across the isolation barrier 4 - The perturbation resistance x ( ADM2795E)

high common mode transient immunity: & gt; 75 kV /μ s（ ADM2795E)

RS - A, 485 B bus pin on the certification of grade 4 EMC protection

IEC61000 - 4 - 5 surge protection ( ± 4 kV）

IEC61000 - 4 - 4 EFT protection ( ± 2 kV）

IEC61000 - 4 - The ESD protection

2 & plusmn;

8 kV contact discharge & plusmn;

15 kV air gap discharge IEC61000 - 4 - 6 for RF immunity ( 10 V / m rms）

RS - 485 A, B, needle mannequins HBM ESD> ± 30 kV

± Peak fault RS - 42 v ac/dc 485 bus pins on the protection of the

expand the common-mode input range for - 25 V to + 25 V

TIA/EIA RS - 485 / RS - 422 conforms to the whole power range and as high as 125 & deg; C