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ISO721DG4

Digital Isolator, 1 Channel, 24 ns, 3 V, 5.5 V, SOIC, 8 Pins

TEXAS INSTRUMENTS ISO721DG4

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Manufacturer Part No:
ISO721DG4
Order Code:
3124778

Product Overview

The ISO721DG4 is a single 100Mbps Digital Isolator with a logic input and output buffer separated by a silicon dioxide insulation barrier. This barrier provides galvanic isolation of up to 4000 VPK per VDE. Used in conjunction with isolated power supplies, this device prevents noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. A binary input signal is conditioned, translated to a balanced signal and then differentiated by the capacitive isolation barrier. Across the isolation barrier a differential comparator receives the logic transition information, then sets or resets a flip-flop and the output circuit accordingly. A periodic update pulse is sent across the barrier to ensure the proper dc level of the output. If this dc-refresh pulse is not received for more than 4µs, the input is assumed to be unpowered or not being actively driven and the failsafe circuit drive the output to a logic-high state.
  • Low propagation delay
  • Low pulse skew
  • Low-power sleep mode
  • High electromagnetic immunity
  • Low input-current requirement
  • Failsafe output
  • 50kV/µs Typical transient immunity
  • Green product and no Sb/Br

Applications

Computers & Computer Peripherals

Warnings

This device has limited built-in ESD protection, leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.

Product Information

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:
1 Channel

:
24ns

:
3V

:
5.5V

:
SOIC

:
8Pins

:
-40°C

:
125°C

:
-

:
-

:
MSL 1 - Unlimited
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