- OPTICAL ISOLATOR USB FULL
- OPTICAL ISOLATOR USB PC
- OPTICAL ISOLATOR USB SERIES
Yes, USB-ISO isolates the grounds and according to some Audiophile customers of ours there is a significant improvement in their USB DAC sound after using the USB-ISO as an isolation for the ground loops between their computers and audio equipment. Can I use USB-ISO for removing the ground loops between my computer and my Audio HIFI equipment?. Note that USB-ISO can NOT work with devices that require only High Speed USB (480 Mbps) or only Low Speed USB (1.5 Mbps)! OPTICAL ISOLATOR USB FULL
If your device is properly recognized by the personal computer without USB-ISO but unrecognized when using USB-ISO then either your device does not support Full Speed USB (12 Mbps) or your target requires more power.
My device is not recognized when I connect it via USB-ISO. In such cases it would necessary to apply an external power supply too. However, some laptops and other USB host devices do not provide enough power for your USB devices. Our circuit uses a chip-level high-frequency DC-DC isolator which is rated at 5000VRMS for 1 minute under UL 1577 optical isolators standard. Typically, USB-ISO works without the need of an external power supply. Do I need to apply external power supply? Besides good quality brands, youll also find plenty of discounts when you shop for usb optical isolator during big sales. Power jack for external power supply +8-15VDC, note the data lines are alway isolated but the power supply lines from the external power supply are not isolated from the USB_HOST connector (the personal computer is always protected the power supply and the device connected to the USB_HOST might influnce each other in case of fault). DC-DC converter supplies isolated voltage to the USB_HOST from the USB_DEVICE if no external power supply is present. USB_HOST connector which is USB-A type and have to be connected to the USB device like USB equipment, audio equippment, development board, programmer, debugger etc. 
OPTICAL ISOLATOR USB PC
USB_DEVICE connector- which is USB-B type and have to be connected to the PC USB host. High common-mode transient immunity: >25 kV/µs. Class 3A contact ESD performance per ANSI/ESD STM5.1-2007. Short-circuit protection for xD+ and xD- lines. Fits USB Audio Class 1 standard (the maximum throughput is 12 Mbps and 24 bits / 96 KHz.) Opto-Isolation Device connection setting: Use a USB cable to connect an FT2232D or FT2232H device to a PC - the pin assignment in given in Table. Requires USB device that support USB 1.1 Full Speed mode (data rate up to 12 Mbps). USB isolation 1000VDC between USB host and USB device. The cascading of several USB isolators is not supported. ***When connecting to an USB 2.0 host (upstream), no USB 3.0 devices are accepted at device side (downstream). ADQ-USB 3.0-ISO-W: External power supply must be provided. **ADQ-USB 3.0-ISO-PS: 5 V power adapter included. Logic output optoisolators use light to transmit information across an electrical insulation barrier, usually for safety or functional reasons. OPTICAL ISOLATOR USB SERIES
The USB isolators of the ADQ-USB-ISO series are not certified for use in medical applications. Rugged aluminum housing with rubber bumpers.+10.36 VDC wide range input via 2-pin Phoenix type clamp (ADQ-USB 3.0-ISO-W).+5 V via barrel connector with bayonet lock (ADQ-USB 3.0-ISO).Isolation voltage (data and power supply)*: up to 1 kV continuously!.
Latest isolator technology supports SuperSpeed USB 3.0 devices up to 5 Gbit/s.Can also be used as “power injector“ for USB devices normally powered by the USB port but which doesn´t provide enough current for a reliable operation of the USB device**.Decoupling of different ground levels in industrial control technology.
Spike protection in the automotive area, e.Efficient suppression of ground loops – Ideal for music studios and event technology.Electrical isolation between measurement instruments and PC.– ideal for measurement, industry, automotive and audio technology. USB 3.0 SuperSpeed Isolator for electrical isolation
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