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Vishay optocouplers rated for 100C

Posted: 12 Jul 2004 ?? ?Print Version ?Bookmark and Share

Keywords:vishay intertechnology? optocoupler?

Touted as the industry's first single- and dual-channel 10MBd optocouplers to be rated for 100C, the new series of devices from Vishay Intertechnology Inc. are packaged in a reinforced-insulation construction.

The six optocouplers combine an input LED with an integrated optical photodiode IC detector designed for applications requiring high data rates. Engineered to replace signal isolation transformers and thereby reduce designers' board space requirements, the devices are aimed at industrial applications including communication bus lines, high-speed A/D and D/A converters, digital control power supplies and industrial controller I/O interfaces, as well as consumer applications such as scan driver IC interfaces for plasma display panels.

Providing noise immunity and diminish electromagnetic interference by reducing potential ground loops in electronic equipment, the 6N137, SFH6741 and SFH6742 (single-channel) and SFH6750, SFH6751 and SFH6752 are (dual-channel) optocouplers feature fast rise and fall times, CMR values up to 10,000V/?s, typical pulse-width distortion of 2.9ns and a typical propagation delay of 50ns.

An internal shield provides a guaranteed common mode transient immunity of 5kV/?s for the SFH6741 and SFH6751, and 10 kV/?s for the SFH6742 and SFH6752.

Available in a standard DIP-8 package with a choice of two surface-mount options and one 400mil-wide lead form through-hole configuration, the new products have reinforced insulation per IEC60950 (pending) and eight pure tin leads. For the single-channel devices, an enable function on pin 7 allows the detector to be strobed.

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