Saleae Logic Analyzers

Debug hardware like the pros.

Protocol Decoders

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.

It Just Works

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.

Trigger and Search

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.

Measurements

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

SDK, Extensions and Community

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.

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.

Craftsmanship

Switch Colors

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

Compare Logic Analyzers

Logic 8

-

Logic Pro 8

-

Logic Pro 16

-

Inputs More

Multi-Use (A/D/Both)

Mixed-signal inputs can be recorded as digital, analog, or both.

8

16

Input Resistance

1 MΩ

2 MΩ

Input Capacitance

10 pF

Input Protection

± 25V

Digital More

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.

100 MS/s

500 MS/s

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.

25 MHz

100 MHz

Sample Depth (typical)

10+ Billion

Supported Logic Levels

1.8V - 5.5V

1.2V - 5.5V

Works with RS-232, 422/3, 485

Yes, directly

Threshold Voltages

.6V low / 1.2V high

Selectable .6V / .9V / 1.65V

Analog More

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.

10 MS/s

50 MS/s

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).

1 MHz

5 MHz

Number of bits

The number of bits of the ADC.

10 bits

12 bits

Input Voltage Range

In practice, the useable range is slightly wider. Each Logic is DC calibrated and INL and DNL are tested.

0 V to 5 V

-10 V to 10 V

Attenuation @ Nyquist

The attenuation at Nyquist is a measure of the effectiveness of the anti-aliasing filter, specifically how much of a signal immediately above Nyquist would show up as an aliased signal in an FFT.

-50 dB or better

Channel-Channel Crosstalk

Channel-to-channel crosstalk is a measure of how much of a signal on one channel will show up on another channel. As measured with victim input grounded.

-50 dB or better

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.

x2

x4

Test Clips 8-Pack

These test clips are used to connect to pins, headers, wires, and other electrical surfaces.

x2

x4

USB Cable and Carry Case

Yes

Physical

Size

2.1" x 2.1" x .46" ( 53 x 53 x 12 mm )

3.6" x 3.6" x .59" ( 92 x 92 x 15 mm )

Weight

2.1 oz ( 60 g )

7.8 oz ( 220 g )

USB

USB Type

USB 2.0

USB 3.0

Also works with USB 2.0, with an approximate 7x reduction in performance.

USB 3.0

Also works with USB 2.0, with an approximate 7x reduction in performance.

Tech Specs

Compare Logic Analyzers

Logic 8

Logic Pro 8

Logic Pro 16

Inputs More

Multi-Use (A/D/Both)

Mixed-signal inputs can be recorded as digital, analog, or both.

8

16

Input Resistance

1 MΩ

2 MΩ

Input Capacitance

10 pF

Input Protection

± 25V

Digital More

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.

100 MS/s

500 MS/s

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.

25 MHz

100 MHz

Sample Depth (typical)

10+ Billion

Supported Logic Levels

1.8V - 5.5V

1.2V - 5.5V

Works with RS-232, 422/3, 485

Yes, directly

Threshold Voltages

.6V low / 1.2V high

Selectable .6V / .9V / 1.65V

Analog More

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.

10 MS/s

50 MS/s

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).

1 MHz

5 MHz

Number of bits

The number of bits of the ADC.

10 bits

12 bits

Input Voltage Range

In practice, the useable range is slightly wider. Each Logic is DC calibrated and INL and DNL are tested.

0 V to 5 V

-10 V to 10 V

Attenuation @ Nyquist

The attenuation at Nyquist is a measure of the effectiveness of the anti-aliasing filter, specifically how much of a signal immediately above Nyquist would show up as an aliased signal in an FFT.

-50 dB or better

Channel-Channel Crosstalk

Channel-to-channel crosstalk is a measure of how much of a signal on one channel will show up on another channel. As measured with victim input grounded.

-50 dB or better

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.

x2

x4

Test Clips 8-Pack

These test clips are used to connect to pins, headers, wires, and other electrical surfaces.

x2

x4

USB Cable and Carry Case

Yes

Physical

Size

2.1" x 2.1" x .46" ( 53 x 53 x 12 mm )

3.6" x 3.6" x .59" ( 92 x 92 x 15 mm )

Weight

2.1 oz ( 60 g )

7.8 oz ( 220 g )

USB

USB Type

USB 2.0

USB 3.0

Also works with USB 2.0, with an approximate 7x reduction in performance.

USB 3.0

Also works with USB 2.0, with an approximate 7x reduction in performance.

FAQ
Great Service
3-Year Warranty

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

What comes in the box?

Where will my order ship from?

Does the new Logic replace an oscilloscope?

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

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

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

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

How long has Saleae been around?

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

What if I still have questions?

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.

Saleae, Inc.

The new Logic 2 Automation API is now available in 2.4.0!

Craftsmanship

Craftsmanship

Machined Aluminum

Metal Finishing

RGB LED

Low-jitter ADC clock

FPGA

PCB

Dual-Use Inputs and Signal Integrity

ADC

Anti-aliasing Filters

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

Tech Specs

Compare Logic Analyzers

Tech Specs

Compare Logic Analyzers

Your questions are welcome here.