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Application Examples:
Digital Isolation for A/D Conversion
Application Block Diagram
The isolated data acquisition system is ideal for digitizing the output of the sensors that
operate in a noisy environment. The ADC, in this case a 24-bit sigma delta or fast conversion
type, converts the analog voltage to a digital number. The quad-channel and bi-directional,
ACSL-6410, provides high CMR of 10kV/us and electrical isolation of 2500V rms between the
host system and the data acquisition circuitry and sensors. The power supply is also isolated,
usually via a transformer to isolate the AC line voltage from the DC voltages generated to
power the data acquisition system.
Digital Isolation for Power-Over-Ethernet via I²C Interface
Power-Over-Ethernet is an emerging application that requires digital isolation between its two
core digital controllers. The digital logic gate optocoupler, triple channel and bi-directional,
ACSL-6310 protect the host controller against high voltage surges that occur during hot
swapping.
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