Price
Each Logic comes with everything you need: test lead set(s), test clips, USB cable, and carry case.
Digital/Analog Inputs
Mixed-signal inputs can be recorded as digital, analog, or both.
Digital 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. See Performance Calculator
Analog 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. See Performance Calculator
PC Connection
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Discounts are available for students, enthusiasts, and small startups. Learn More >
Logic 8
8
100 MS/s
Maximum sample rate for three (3) digital and zero (0) analog channels in use. For other combinations, see Performance Calculator.
10 MS/s
Maximum sample rate for two (2) analog and zero (0) digital channels in use. For other combinations, see Performance Calculator.
USB 2.0
Black
Logic Pro 8
8
500 MS/s
Maximum sample rate for six (6) digital and zero (0) analog channels in use. For other combinations, see Performance Calculator.
50 MS/s
Maximum sample rate for five (5) analog and zero (0) digital channels in use. For other combinations, see Performance Calculator.
USB 3.0
Also works with USB 2.0, with an approximate 7x reduction in performance.
Black
Logic Pro 16
16
500 MS/s
Maximum sample rate for six (6) digital and zero (0) analog channels in use. For other combinations, see Performance Calculator.
50 MS/s
Maximum sample rate for five (5) analog and zero (0) digital channels in use. For other combinations, see Performance Calculator.
USB 3.0
Also works with USB 2.0, with an approximate 7x reduction in performance. By default, Logic Pro 16 will only enable 8 channels to comply with the USB 2.0 power specification. This can be overridden in the software, under Options->Preferences.
Black
Debug hardware like the pros with the logic analyzer you'll love.
Choose Your LogicReal-Time View now shipping in the latest beta.
Enjoy on Windows, Mac, or Linux.
Record
To record your digital and analog signals, just press start. You can fill your entire computer’s memory with data so it is easy to capture lengthy or rare events.
Setup
Every Logic device can be customized to capture data the way you want. You can select how long to record, specify how bandwidth is allocated between digital and analog recoding, select which channels to record, and even make the LED your favorite color.
Navigate
When you have billions of data points to display, it is important that getting around in all that data is a zippy experience. Effortlessly zoom in and out with the scroll wheel, and navigate left and right by dragging the data where you want it.
Measure
For basic measurements, just place your mouse near something interesting. The software will figure out the rest and display the relevant measurements. You can show different measurements by right-clicking.
Trigger & Find
The software can start recording automatically when it finds a simple pattern you specify. You can trigger on digital edges and pulses as well as analog voltages and pulses. After you collect your data, you can search for more events this way too.
SPI, I2C & more
Most digital communication uses a particular protocol that specifies how information is transferred. The Logic software has protocol analyzers that can automatically decode SPI, I2C, serial, 1-Wire, CAN, UNI/O, I2S/PCM, MP Mode, Manchester, Modbus, DMX-512, Parallel, JTAG, LIN, Atmel SWI, MDIO, SWD, LCD HD44780, BiSS C, HDLC, HDMI CEC, PS/2, USB 1.1, Midi – or create your own with the SDK.
Search
Once you have decoded your data with a protocol analyzer, you can search through all these decoded results by just typing what you are looking for – the software will jump right to the spot where it happened.
Annotate
In the software, you can add unlimited bookmarks, which remember what you were looking at; timing markers, which can measure the time between events; and measurements, which annotate the waveform with parameters like width, frequency, RMS voltage and duty cycle.
Export
Sometimes you will need to do something pretty custom with your data, so you’ll be happy to know it is easy to export it in a variety of formats, including a text csv file or Matlab m file.
Automate
If you need to automate the Logic software, you can control everything over a simple TCP socket using virtually any programming language. Learn more.
SDK
Have a rare or proprietary protocol you would like to have Logic decode? You can with our Analyzer SDK. Learn more.
Craftsmanship.
Switch Colors
Logic 8 shown.
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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
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 )
( 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 )
( 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 )
( 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 WarrantyWhat 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?
All items ship from our office here in San Francisco, California. Keep in mind that there may be duties and taxes due on delivery for international orders.
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! You can also ask the community!
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!
3-Year Warranty & 180 days for returns
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.