Single 100mbps Digital Isolator

  The ISO721 ISO721M ISO722 and ISO722M are digital isolators with a logic input and output Buffer separated by a silicon oxide (SiO2) insulation barrier. This barrier provides galvanic isolation of up to 4000 V. Used in conjunction with isolated power supplies, these devices prevent 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.
Item: ISO721
File Size : 69 KB
Pages : 25 Pages

Other Part Numbers in this pdf file

ISO722MDRG4   ISO722MDR   ISO722MDG4   ISO722MD   ISO722M   ISO722DRG4   ISO722DR   ISO722DG4   ISO722D   ISO722   ISO721MDRG4   ISO721MDR   ISO721MDG4   ISO721MD   ISO721M   ISO721DRG4   ISO721DR   ISO721DG4   ISO721D  
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