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System Requirements for Saleae Products
What Is the Normal Behavior of the LED?
What Is the Difference between Logic/Logic16 (Gen1) and Logic 8/Pro 8/Pro 16 (Gen2)?
Recommended USB 3.0 Host Controller Cards
Device Settings Configuration Tips
What Is the Worst Case Channel to Channel Skew?
What is Asynchronous Sampling?
Which Saleae Products Can Decode 4-Bit Parallel LCD Communications?
How Can I Compare Two Clock Signals for Synchronization and Drift?
Converting I2S/PCM Captures into Audio
My Capture Shows an Uneven Duty Cycle
Can I Create or Edit .logicdata Files?
Can Saleae Logic Run on ARM Processors?
What Annotations Are Supported?
Time & Memory Saving Tools
How Can I Record Power Consumption?
Moving Logic to Its Own Host Controller
How Long Does It Take to Save a File?
XMonad on Linux Causes Issues
What Is the Maximum Bandwidth of Logic?
How Long Can I Record Data?
Can I Export Protocol Results Between Timing Markers?
Can I Generate an Analog Graph from Digital Data?
Time Measurement Error
Can These Products Replace an Oscilloscope?
Can I Use Multiple Logics on a Single PC?
Native Windowing Features Are Not Working Such as Snap or Gestures
Opening .logicdata Capture Files
How to Choose the Right Logic Analyzer for You
Saleae Open Source Support
How to Trigger the End of a Capture Instead of the Start
Using the Hardware with USB Extension Cables, Through Virtual Machines, or Ethernet Extenders
Are the Ground Pins Required for Each Input Used?
Can Saleae Products Output Data?
Resolution of the Analog Inputs
How Can I Analyze the USB Power Delivery Communication Protocol?
What Sampling Rate Should I Use?
Can I Share Data Captures with Others?
Binary Export Format (Digital) - Logic 1.x
MATLAB Data Export Format
Recording Multiple Protocols at the Same Time
Changing the Display Radix (Base)
Which Logic Analyzer Should I Get?
How to View and Debug Firmware Variables, State, and Function Calls
Using Saleae Logic Devices with Third-Party Pattern Generators
How to Install the Saleae Software from a Script Automatically
Can Logic Operate with a Full-Speed USB Isolator?
Which Saleae Devices Support Analog Recording?
How to Manage Protocol Analyzers when Using the Socket API
How to Export Serial Protocol Results to a Raw Binary File
How to Trigger On a Pulse with No Maximum Time Limit
Finding Your USB 3.0 Host Controller Information
Logic Reports Different USB Current Requirements
Is It Possible to Adjust the Logic Thresholds for the Digital Inputs?
Why Does Channel 0 Use a Black Wire?
Software Shows Multiple Logic Analyzers Attached
Are the Input Channels Isolated from Each Other?
Are There Feature Differences in the Software when Different Logic Analyzers Are Used?
Packet Level Decoding Support in the Analyzer SDK
What Higher-Level Protocol Analysis Features Are Available?
Support for USB 3.0 and USB 3.1
How Can I Compare Signals from Different Captures?
Do the Saleae Logic Analyzers Support Trigger Out?
Why is the Length of my Capture Incorrect?
The Options Button is Missing
Can I Change the Voltage Range of the Analog Inputs?
How Does the ASCII Radix Display Characters?
Do I Have a USB 3.0 Port?
What Is the Best Way to Compare Similar Sequences of Protocol Data?
Which Version of the Software Should I Use?
Import Custom Low Level Analyzer
OSX Analyzer SDK Xcode Setup
Can Custom Analyzers Process Analog Channels?
Stop a Capture or Close the Software from the Socket API or the Command Line
How Can I Take Long Captures That Cannot Fit into Memory?
What Options Are There to Export Multiple Protocol Analyzer Results into the Same File?
Do the Saleae Devices Support AC Coupling?
Suggestions for Capturing Multiple Instances of a Triggered Event Automatically
How Many Protocol Analyzers Can Be Used at Once?
Is It Possible to Run the Saleae Software on a PC without SSE2 Instructions?
Is It Possible to Import Data into the Logic Software?
How Do I Convert Exported CSV Analog Data in Voltages?
Is There Cross-Platform Support for the SaleaeSocketApi C# Project
Why Does Logic Get Warm?
Binary Export Format (Analog) - Logic 1.x
Electrical Isolation Suggestions
FCC and CE Testing Recommendations
'Save Capture' and 'Export Data' is Disabled in the Software
File Format Description for Exporting Protocol Analyzer Results
Is There a Newer Version of the Software Available?
Is There a Way to Change the Window Resolution?
How Can I Extract Recorded Data Using Socket API?
Does the Software Support Windows 10 Tablets or Windows RT Tablets?
Standalone Software Information
Does the Saleae Software Support the Original Logic and Logic 16?
Timing Markers Disappear When I Start a New Capture
What Sample Rate Settings Are Available? Can I Sample at a Slower Rate?
How Do I Differentiate Data in the Export File when Duplicate Analyzers Are Used?
Running Multiple Versions of the Software
Test Clip Differences - Gen 1 & Gen 2
USB-C Cable Recommendations
Is My Capture Data Private?
Ethernet Connectivity Suggestions
Binary Export Format - Logic 2
Viewing I2C Addresses as 8-bit
Can I use Python Packages in my Custom Extension?
Are the Inputs Synchronously Sampled or Sweep Sampled?
Is Logic Affected by the Log4j Exploit?
Connecting Remotely with SSH
Is Silent Installation Supported?
Is the .sal File Format Documented?
Export Data via Socket API
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Electrical Isolation Suggestions
None of the Saleae devices electrically isolate the ground of the device under test from the host PC’s USB port ground. For most applications, this merely requires extra care from the user to prevent accidental ground loop short circuits. However, there are applications where electrical isolation between the device under test and the host PC is absolutely required.

USB 3.0 Isolator

  • 1 kV continuous isolation (data and power)
  • SuperSpeed ​​USB 3.0 - 5 Gbps
  • Backward compatible with USB 2.0 / 1.1 / 1.0.
  • Provides 900mA when used with included power supply.
  • Includes Power Supply for US, CN, AU, EU and UK.
  • Compatible with all Saleae Logic Analyzers
  • Rugged aluminum housing with rubber bumpers
Please contact us if you have any specific questions regarding this USB isolator.

Isolating the Inputs Before They Reach Logic

Another recommendation is to simply isolate the digital inputs before they reach Logic. You may want to consider using this SI Labs digital isolator evaluation kit. Additional work will be required to get it running, and it won’t work in all scenarios, but it’s a good starting point.
Unfortunately, we don’t currently have any suggestions for analog input isolation. However, there is one other option you can consider.
You can also fully isolate the host PC and all other attached peripherals from other ground references. This is done most easily with a laptop running from battery power or by using a modified isolation transformer with its MAINS ground wire disconnected. Please note that we only mention this as a possibility and do not recommend it since it can put the operator in danger under some circumstances. If the operator becomes the ground short between the device under test and the MAINS ground (or another ground reference), serious injury may occur.

USB 2.0 Isolator

There is one USB 2.0 high-speed isolator on the market: http://intona.eu/en/products​
We've tested it here, and it works very well. Unfortunately, there is one limitation. It can only provide 300mA of current to the downstream port, which is less than the standard 500mA from USB 2.0 ports. This is not a problem for Logic 4 or Logic 8. However, Logic Pro 8 and Logic Pro 16 will require the USB 3.0 Super-Speed Isolator mentioned above.

Channel to Channel Isolation

No. All inputs on every product share a common ground internally, and that ground is also shared with the USB connection, and thus the host PC.
For digital channel-to-channel isolation, we suggest considering this eval kit from SI Labs.
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USB 3.0 Isolator
Isolating the Inputs Before They Reach Logic
USB 2.0 Isolator
Channel to Channel Isolation