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Bidirectional I2C Isolators

Wed, 12/19/2012 - 11:03am
PD&D Staff

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Texas Instruments Incorporated (Dallas, TX) (NASDAQ: TXN) has introduced a bidirectional isolator family compatible with I2C interfaces. Each of the new integrated circuits (ICs) can replace a typical implementation of 16 or more discrete devices to isolate the I2C signal in industrial applications. Features include:

  • A silicon dioxide barrier (SiO2) to separate logic input and output buffers.
  • A maximum current of less than 8.5 mA at 5 V.
  • A maximum propagation delay of 62 nanoseconds.
  • ± 50-kV/us typical transient immunity that provides better reliability in harsh environments.
  • Isolated bidirectional communications by employing an offset configuration that prevents device latch-up and ensures reliable operation.

For more information visit www.ti.com/iso1540-pr

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