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Price
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Each Logic comes with everything you need: test lead set(s), test clips, USB cable, and carry case.
Digital/Analog Inputs
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Mixed-signal inputs can be recorded as digital, analog, or both.
Digital Sample Rate (max)
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All data is streamed in real time over USB. The maximum sample rates depends on the number of digital and analog channels used.
Analog Sample Rate (max)
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All data is streamed in real time over USB. The maximum sample rates depends on the number of digital and analog channels used.
PC Connection
Select Color
Logic 8
Logic 8
8
100 MS/s
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Maximum sample rate for three (3) digital and zero (0) analog channels in use.
10 MS/s
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Maximum sample rate for two (2) analog and zero (0) digital channels in use.
USB 2.0
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Black
Red
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Logic Pro 8
Logic Pro 8
8
500 MS/s
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Maximum sample rate for six (6) digital and zero (0) analog channels in use.
50 MS/s
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Maximum sample rate for five (5) analog and zero (0) digital channels in use.
USB 3.0
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Also works with USB 2.0, with an approximate 7x reduction in performance.
Black
Black
Red
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Logic Pro 16
Logic Pro 16
16
500 MS/s
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Maximum sample rate for six (6) digital and zero (0) analog channels in use.
50 MS/s
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Maximum sample rate for five (5) analog and zero (0) digital channels in use.
USB 3.0
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Also works with USB 2.0, with an approximate 7x reduction in performance.
Black
Black
Red
Shipping to

Debug hardware like the pros.

Choose Your Logic
  • Protocol Decoders
  • It Just Works
  • Trigger and Search
  • Measurements
  • SDK, Extensions and Community

Effortlessly decode protocols like SPI, I2C, Serial, and many more. Leverage community created analyzers or build your own low-level or high-level protocol analyzer.

protocol-decoders

Debugging that just works. Stable, easy to use, and fully cross platform, Logic 2 makes it dirt simple to capture, visualize, and search your signals.

Explore your board-level comms interactively with Live Trigger on Protocol and Protocol Search. Unlike a scope, all your traffic is being recorded — you can always stop and analyze exactly what happened and why.

Verify behavior instantly with measurements wherever you point your mouse. You can even create your own measurements or use ones from the community.

measurements

Take on any comms challenge by creating your own low-level protocol analyzer, high-level protocol analyzer, or measurement. And if you like, you can easily share your extension with the Saleae community.

Craftsmanship.

Switch Colors
Logic 8 shown. More pictures

Craftsmanship

We really care about this stuff. And we think that when you get Logic in your hands, you’ll be able to tell. Click the circles to learn more about what goes into Logic.

Machined Aluminum

Every Logic starts as extruded 6061 T6 aluminum plate. It is then precisely machined with a 3-axis CNC mill, using four different setups and seven different solid carbide tools.

Metal Finishing

The machined enclosure is cleaned and then textured with a light glass bead blast to give it a uniform, elegant look. Next the part is anodized, brightened, colored and sealed. This is the finish quality you would expect from pro-audio equipment or a new MacBook.

RGB LED

Choose your favorite color to customize your Logic. The brightness is controlled by PWM, and we’ve RC-filtered the PWM so the LED does not contribute any measurable degradation to your signals.

Low-jitter ADC clock

The low jitter of the ADC sampling clock assures the SNR is not degraded.

FPGA

Logic 8, Logic Pro 8 and Logic Pro 16 feature the Xilinx Spartan 6 FPGA,which interfaces to the ADC, digital inputs, and USB bridge. The FPGA also has the capability of performing over 5 billion DSP operations per second (over 10 billion on Pro 16). When you use more analog channels than can be streamed over USB at once, we need to filter and decimate that data in the FPGA – reducing the bandwidth without introducing aliasing. Logic Pro 16 produces analog data at a rate of 9.6Gbit – that’s a lot of data to process in real time!

PCB

PCB assembly is performed by our assembly partners in Fremont, California. Logic 8 is 8-layer, and Logic Pro 8 and 16 have, well, more layers than that.

Dual-Use Inputs and Signal Integrity

To provide optimal signal integrity with a flying lead test probe, each input has a dedicated ground wire. In most situations, users can leave extra grounds disconnected. In addition, on Logic 8, Logic Pro 8, and Logic Pro 16, each input can be configured to be an analog input, a digital input, or both at the same time.

ADC

Logic 8, Pro 8, and Pro 16 all have 8-channel ADCs. (Pro 16 has two.) Logic 8 has an analog sample rate of 10MS/s at 10-bits, and Logic Pro 8 and Pro 16 sample at 50MS/s at 12-bits. For Logic Pro 16, this is an awesome 9.6Gbit of data which must be handled by the FPGA. When you use more channels than USB can handle, the FPGA filters and decimates the data in real time so that the resulting signal does not exhibit any aliasing from frequencies above the new bandwidth.

Anti-aliasing Filters

An anti-aliasing filter prevents frequencies higher than the Nyquist frequency from being sampled. Any frequency content higher than Nyquist will result in aliasing, which, generally speaking, makes it impossible to compute an accurate FFT. Filters can have an adverse effect on both gain and phase so this must be carefully accounted for.

Over 20,000 embedded developers actively use Logic every month.

Tech Specs

Inputs
MoreLess
Multi-Use (A/D/Both)
Mixed-signal inputs can be recorded as digital, analog, or both.
Input Resistance
Input Capacitance
Input Protection
Digital
MoreLess
Sample Rate (max)
All data is streamed in real time over USB. The maximum sample rates depends on the number of digital and analog channels used.
Fastest Digital Signal
Digital Only. All data is streamed in real time over USB. The maximum sample rates depends on the number of digital and analog channels used.
Sample Depth (typical)
Supported Logic Levels
Works with RS-232, 422/3, 485
Threshold Voltages
Analog
MoreLess
Sample Rate (max)
All data is streamed in real time over USB. The maximum sample rates depends on the number of digital and analog channels used.
Bandwidth (-3dB)
The maximum bandwidth for Logic 8, Pro 8, and Pro 16 depends on the number and type of channels used.= Note that lower bandwidths are sampled at the same rate, but are downsampled (filtered/decimated).
Number of bits
The number of bits of the ADC.
Input Voltage Range
In practice, the useable range is slightly wider. Each Logic is DC calibrated and INL and DNL are tested.
Attenuation @ Nyquist
The attenuation at Nyqust is a measure of the effectiveness of the anti-aliasing filter, specifcally how much of a signal immediately above nyqust would show up as an alised signal in an FFT.
Channel-Channel Crosstalk
Channel-to-channel crosstalk is a measure of how much of a signal on one channel will show up onother channel. As measured with victim input grounded.
Included
Everything you need is included. Get extra accessories.
Test Lead Set
8-Wire (4 signal/4 ground) color-coded, numbered, non-kinking, ultra-flexible 22AWG 65/40 test lead set. 9in (23cm) length. The ends can be attached test clips or to .1in IDE style header pins.
Test Clips 8-Pack
These test clips are used to connect to pins, headers, wires, and other electrical surfaces.
USB Cable and Carry Case
Physical
Size
Weight
USB
USB Type
Logic 8
8
1 MΩ
10 pF
± 25V
100 MS/s
25 MHz
10+ Billion
1.8V - 5.5V
Yes, directly
.6V low / 1.2V high
10 MS/s
1 MHz
10 bits
0 V to 5 V
-50 dB or better
-50 dB or better
x2
x2
Yes
2.1" x 2.1" x .46"
( 53 x 53 x 12 mm )
2.1 oz ( 60 g )
USB 2.0
Logic Pro 8
8
2 MΩ
10 pF
± 25V
500 MS/s
100 MHz
10+ Billion
1.2V - 5.5V
Yes, directly
Selectable .6V / .9V / 1.65V
50 MS/s
5 MHz
12 bits
-10 V to 10 V
-50 dB or better
-50 dB or better
x2
x2
Yes
2.1" x 2.1" x .46"
( 53 x 53 x 12 mm )
2.1 oz ( 60 g )
USB 3.0
Also works with USB 2.0, with an approximate 7x reduction in performance.
Logic Pro 16
16
2 MΩ
10 pF
± 25V
500 MS/s
100 MHz
10+ Billion
1.2V - 5.5V
Yes, directly
Selectable .6V / .9V / 1.65V
50 MS/s
5 MHz
12 bits
-10 V to 10 V
-50 dB or better
-50 dB or better
x4
x4
Yes
3.6" x 3.6" x .59"
( 92 x 92 x 15 mm )
7.8 oz ( 220 g )
USB 3.0
Also works with USB 2.0, with an approximate 7x reduction in performance.
FAQ
Great Service
3-Year Warranty
What comes in the box?

When you receive your Logic, it will come in a custom neoprene zippered case, and include a USB cable as well as the test clips (two test clips for every input) and test probes you need.

Where will my order ship from?

Depending on your location and the type of shipping selected, your order will ship from our offices in California or a warehouse in the US, Canada, Europe, or Japan.

Does the new Logic replace an oscilloscope?

Not exactly, no. However, it could be much better than an oscilloscope for many applications – especially applications where a microcontroller is interacting with an analog signal in some way, such as reading an analog voltage or controlling an analog voltage.

Logic is not a good fit for the following applications: signal integrity work, high-bandwidth analog signals, small voltages at high resolution (such as less than 100mVpp), or analog voltages outside the range of 0-5V (Logic 8) or -10V – 10V (Logic Pro 8, Logic Pro 16).

Is there an SDK/API available?

Yes, we currently have two SDKs available. The Automation API lets you control the Logic Software from your own application. The Protocol Analyzer SDK lets you create your own protocol analyzer plugins.

I have one of the previous generation products. Will the new software work with it?

Yes, the new software updates are backwards compatible with the original Logic and Logic16!

What's next for the software? I have ideas!

Awesome, please vote for and add your favorite features!

What if my new Logic stops working after I get it?

We will repair/replace any malfunctioning unit, regardless of cause, for up to three years. We pick up the tab for shipping in both directions as well. Just contact us.

What if I decide that Logic isn't what I really need?

Just let us know within 180 days, and we'll provide a full refund. We will provide you with a printable shipping label so you can ship it back to us at our expense.

How long has Saleae been around?

The first Logic was sold to Chip on June 3rd, 2008. Since then we've sent thousands of Logics all over the world and have gotten some pretty nice feedback. Things are going well!

How do you pronounce "Saleae" and what does it mean?

'Say-lee-ay'. It's just a made up word we came up with a long while back; among other things we went through the periodic table for ideas, and we're pretty confident it was based on Selenium.

What if I still have questions?

Please ask us!

Joe
Mark
Debora
Kristina
Tim
Oz

Your questions are welcome here.

From help with placing an order to the most obscure technical question, we’re here to help. Your technical questions are answered by EEs and CSEs with a deep knowledge of our hardware, software, and embedded applications. Plus, we're friendly!

Try it now

3-Year Warranty and 180 days for returns

Your new Logic is covered against absolutely any malfunction, regardless of cause, for three years. Replacement units ship immediately, and shipping charges are on us. Just drop us a line.

Decide within 180 days that our products aren’t for you, and return them for a full refund, including shipping. To arrange for a replacement or return, just contact us.