USB 3.0 isolator passes 5Gbit/s while breaking electrical continuity for instrumentation
“Re-clocking design guarantees a stable USB connection at all speeds,” claimed Saelig.
Detection of data rate is automatic across SuperSpeed (5Gbit/s), High-Speed (480Mbit/s), Full-Speed (12Mbit/s) or Low-Speed (1.5 Mbit/s).
- ADQ-USB 3.0-ISO-PS includes a +5V power adaptor with a 5.5mm barrel connector which is lockable (bayonet) for a safety.
Isolation between PC and USB device is 1kV (continuous). - ADQ-USB 3.0-ISO-W is intended for industrial and automotive applications. It can accept 10-36Vdc from an external power source via a 2-pin lockable Phoenix-type connector to power devices with up to 900m according to the USB 3.0 specification. The external power input is protected against reverse polarity and short-circuits.
Isolation is 1.0kV (<60s).
Without an external power supply the USB isolator can source up to 200mA at the device port
ESD protection for data lines is provided by transient-voltage-suppression diodes up to ±12kV (contact discharge) and ±15kV (air-gap discharge) according to IEC 61000-4-2.
The Alldaq isolators are compatible with Windows, MAC OS and Linux systems, and downward-compatible with USB 2.0/1.1/1.0 equipment.
For robustness, the housing is aluminium with rubber bumpers (~91 x 64 x 33mm 127g) and designed to operate across -20 to +70°C.
A DIN rail mounting kit is optional for permanent installations.
Typical applications will be blocking interference voltages and eliminating ground loops, for example, providing isolation between measurement instruments and PCs, rejecting ripple pickup in studio equipment and at events, removing differing ground potentials in industrial control equipment, and protection against voltage peaks in automotive set-ups.
Alldaq isolators are made in Germany.