RS-485/RS-422 Transceiver Provides Precision Control
Intersil Corporation introduced the ISL3259E RS-485/RS-422 transceiver, a next-generation interface IC that combines a 100 Mbps data transmission rate with a low 2.6 mA supply current and 15 kV IEC61000-4-2 ESD (electro-static discharge) protection. The IC allows for the elimination of external protection components and saves on total costs. This device’s ESD level is rated at 15 kV air gap and 8 kV contact discharge to IEC61000-4-2 on the RS-485/RS-422 bus pins and 9kV HBM on all of the other pins. The device also has a full fail-safe receiver, current limiting and thermal shutdown for driver overload protection, and hot plug transmitter and receiver outputs. These features protect the device’s outputs and prevent data corruption when cable faults occur or when a new node is added to an active bus. The ISL3259E is available in DFN and MSOP packaging in 1,000 unit quantities for $1.33 each.
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