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M8194A 120 GSa/s Arbitrary Waveform Generator

Data Sheets

M8194A 120 GSa/s Arbitrary Waveform Generator

Version 1.0

M8194A at a glance

The Keysight Technologies, Inc. M8194A arbitrary waveform generator (AWG) has the highest sample rate and the widest bandwidth in its class with up to four synchronized channels operating simultaneously in one module

  • Sample rate up to 120 GSa/s (on all 4 channels simultaneously) 
  • Analog bandwidth: 45 GHz (typical), generate signals with frequency components up to 50 GHz 1 
  • 8 bits vertical resolution 
  • 512 kSa of waveform memory per channel 
  • 1, 2, or 4 differential channels per 1-slot AXIe module (number of channels is software upgradeable) 
  • Amplitude up to 0.8 Vpp(se) / 1.6 Vpp(diff.), voltage window -1.0 to +2.5 V 
  • Transition time (20%/80%): 11 ps without corrections / 6 ps with corrections applied (typical) 
  • Built-in frequency and phase response calibration for clean output signals 
  • Up to 4 modules (= 16 channels) can be synchronized

Coherent Optical Applications

400 G and 1 Terabit applications demand a new class of generators that provide high speed, precision and flexibility at the same time. The M8194A is the ideal solution to test different optical systems from discrete components like optical power amplifiers to more complex dual polarization systems like optical modulators or optical receivers. With up to 4 channels per 1-slot AXIe module, each running at up to 120 GSa/s with 45 GHz of analog bandwidth, it allows dual polarization testing in a small form factor and the generation of complex signals with multiple modulation schemes (PAM-4, PAM-8, QPSK, nQAM) up to 100 GBaud. Compensation for distortions generated e. g. by cables and amplifiers can be realized by embedding/de-embedding the S-parameters of the respective circuits or by performing an in-situ calibration using the Keysight Technologies vector signal analysis software. Combined with the 81195A optical modulation generator software, the M8194A makes it easy to generate optical impairments (e.g. PMD) for stressing the optical receiver over multiple test scenarios.

Multi-Level/Multi-Channel Digital Signals

The M8194A is also ideally suited to address multilevel/multi-channel interfaces using any standard or custom data format, for example high-speed backplane connections using PAM-4 or PAM-8 format, as well as technologies in the mobile application space. The flexibility of the waveform generation at its highest speeds, combined with excellent intrinsic jitter performance makes the M8194A a truly future-proof instrument. At data rates of multiple Gb/s, the effect of cables, board traces, and connectors etc. must be considered in order to generate the desired signal at the test point of the device under test. The M8194A incorporates digital pre-distortion techniques for frequency- and phase-response compensation of the AWG output and any external circuit to generate the desired signal at the device under test. Channels can be embedded/de-embedded if the Sparameters of the respective circuits are provided. In conjunction with the 81195A optical modulation generator software various kinds of distortions can be added to the signal. With its high channel density, the M8194A is well-suited to affordably and precisely stimulate multi-lane high-speed interfaces.

Physics, Chemistry and Electronics Research

With the M8194A AWG it is possible to generate any arbitrary waveform you can mathematically describe and download it directly to the M8194A. This includes ultra-short yet precise pulses down to 16 ps pulse width or extremely short, yet wideband RF pulses and chirps which are needed to investigate in live time chemical reactions and elementary particle excitation.

Multi-Module Operation

Up to four M8194A can be synchronized. For two modules, an M8194A-830 sync cable kit is required. For three (four) modules, two (three) M8194A-830 sync cable kits plus an M8197A sync module is required. Instead of the M8197A, an external clock source can be used that meets the specifications for the Sync B In connector.

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