They are a good idea on the bench when it's possible to use them (anything that doesn't demand 480Mbps USB2 High speed). On the up-side, the isolator almost certainly saved your PC USB port from damage. There's not really much that affects 'reliability' so, within reason, the cheaper the better if you're likely to fry one. Once you look at the datasheet, it is very easy to see what features are implemented on any particular isolator from the product photo. Plugged into a USB2.0 port: 30Mbytes/sec. With a USB3 memory stick plugged into a USB3.0 port: 37Mbytes/sec. A Pendrive is a nice device to check speed, try to connect a USB flash and compare the speed with and without the converter. As for which ones are reliable - they all use a variant of the ADUM datasheet app circuit, so there's probably little to choose between them (apart from maybe DC-DC converter wattage). Quote from: ebclr on March 22, 2017, 08:15:47 am. You don't say what part of the isolator is getting hot, but it sounds as if it got back-driven with greater than 5V when your Duo smoked. Each side of the isolator is separately powered to maintain isolation. The switch will be there to select the slew rate to match USB low speed or high full speed (the opto is there to mirror the same setting on the other side). It's worth downloading the datasheet to understand them, the pin functions are very simple. IMPORTANT: To prevent damage or errors from grounded PCs and surges, Acromag strongly recommends the use of their USB-ISOLATOR when configuring a TT330 Series transmitter. Models 0600/1600: Standard, models 0610/1610: With UL/cUL class 1 Div 2 zone 2 approval.All of these isolators use Analog Devices ADUM3160 or ADUM4160 isolator ICs.No need for RS232 unless its conveniently already available on existing hardware. Low voltage UART can be isolated with optocouplers quite easily if not too fast (standard speeds up to 115200 should be OK). portable battery powered computer or USB isolator must be used to avoid the effects of ground loops. Download for free from the Google Play Store. Agility Mobile Application Software configuration software for an Android smart device. Fast and easy configuration with Windows software via USB, no switches, potentiometers etc. Re: Choosing USB isolator, alternate option.High surge, shock and vibration immunity.Modern ASIC and microcontroller technology for high accuracy and linearity. Thermocouples type J, K, T, E, R, S, B, N or ☑00 mV inputs. Thermocouple to DC isolator / converter Price starting from: 140.00 Price on E-Commerce sales channel from: 133.00 Order code : Z109TC2 Description.Setup and calibration are fast and easy with a convenient USB connection to your PC and Acromag’s Windows configuration software Isolation protects from surges, reduces noise, and eliminates ground loop errors. Suitable for thermocouples K J E N T R S L U B C G (4 to 20) mA loop powered output USB Configuration Push button Calibration Against Live Sensor Value View. High-voltage isolation separates the input from the output circuit. These transmitters isolate and convert the signals from thermocouples into a 4.20 mA current-loop control signal.
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