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NMUSB202MC-Slide4

So why might a user want isolation? If upstream and downstream grounds are connected, ground currents might flow between the upstream and downstream devices, potentially introducing noise and disrupting data. For example, isolators are commonly used in USB to analog audio interfaces to avoid hum. In some applications, isolation may be necessary to meet safety agency requirements, for example in medical environments where downstream devices may be in a sensitive area such as at a patient’s bedside.

PTM Published on: 2016-03-25