Texas Instruments ISO721MD Digital Isolator 1 Channel 16 ns 3 V 5.5 Soic 8 Pins

The ISO721MD is a single channel Digital Isolator with a logic input and output buffer separated by a silicon dioxide (SiO2) insulation barrier. This barrier provides galvanic isolation of up to 4000VPK per VDE. Used in conjunction with isolated power supplies, it 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, 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 4 ?s, the input is assumed to be unpowered or not being actively driven and the failsafe circuit drives the output to a logic-high state.

• Low propagation delay
• Low pulse skew
• Low-power sleep mode
• High electromagnetic immunity (EMI)
• Low input-current requirement
• Failsafe output
• Drop-in replacement for most opto and magnetic isolators
• 50kV/?s Typical transient immunity
• Green product and no Sb/Br

Applications

Industrial, Computers & Computer Peripherals, Communications & Networking

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

Other details

Brand	TEXAS INSTRUMENTS
Part Number	ISO721MD
Quantity	Each

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All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.