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Low EMI converter transformers

Murata Power Solutions has introduced a series of converter transformers specifically designed for use with Analog Devices’ ADM2482/7 transceiver chipsets used to provide isolated RS485 and RS422 interfaces. The 782482 series has carefully controlled turns ratios to ensure consistent performance while a toroidal construction helps minimise electromagnetic interference. Housed in a dual-in-line package using UL94 V-0 materials, the low-profile devices have overall dimensions of 9.77x9.14x6.35mm. Nominal input voltages are 3.3V for the 782482/33VC and 5.0V for the 782482/53VC; both models have a nominal output voltage of 3.3V and provide 4.0kV DC isolation. Both models are RoHS compliant and backward compatible with Sn/Pb soldering systems. Analog Devices’ ADM2482/7 are isolated data transceivers with ±15kV ESD protection and are suitable for high speed, half-duplex or full-duplex communication on multipoint transmission lines. The devices employ the Analog Devices iCoupler technology to combine a three-channel isolator, a three-state differential line driver, and a differential input receiver into a single package.