The Keysight M8196A is a high-performance arbitrary waveform generator delivering 92 GSa/s sample rates across up to four synchronized differential channels. Purpose-built for optical, RF, and high-speed digital signal generation, it produces complex waveforms with 32 GHz analog bandwidth, 8-bit vertical resolution, and ultra-low intrinsic jitter. The instrument supports advanced modulation schemes including PAM-4, PAM-8, QPSK, and nQAM at baud rates exceeding 64 GBaud, making it essential for communication system development and validation.
Technical Specifications
Signal Generation Performance
• Sample rate: up to 92 GSa/s (DAC range 82.24–93.4 GSa/s)
• Analog bandwidth: 32 GHz typical
• Vertical resolution: 8 bits
• Waveform memory: 512 kSa per channel (128-sample granularity)
• Output amplitude: 1 Vpp single-ended or 2 Vpp differential; -1.0 V to +2.5 V window; ±(5% +10 mV) accuracy
• Rise/fall times: <9 ps typical (20%–80%)
• Output impedance: 50 Ohms
• Minimum pulse width: 20 ps
• Phase noise: -115 to -95 dBc/Hz
Modulation and Signaling
• Supported schemes: PAM-4, PAM-8, QPSK, nQAM
• Baud rate capability: 64 GBaud and beyond
• Pattern length: PRBS 2^15-1 maximum
Channel Configuration
• Channel options: 1, 2, or 4 differential channels per module (software-upgradeable)
• Up to four synchronized channels on single module
• Markers: Two independent digital markers (available in single and dual-channel modes; not available in 4-channel mode)
Calibration and Response
• Built-in frequency and phase response calibration
• Digital pre-distortion for output and external circuit compensation
• Frequency response measured DC to 45 GHz
Interfaces
• Connectors: 2.4 mm
• External clock input/output
• Front-panel trigger input
– Key Features
• Four-channel coherent operation with simultaneous output
• Sub-9 ps transition times enable high-fidelity edge definition
• 512 kSa memory supports long pattern sequences
• Software-selectable channel density optimizes slot utilization
• Integrated frequency response compensation ensures clean output to 45 GHz
– Typical Applications
• 400G+ coherent optical transceiver validation
• PAM-4/PAM-8 signal generation for serial link testing
• RF and microwave component characterization
• High-speed digital signal simulation
– Compatibility & Integration
AXIe module format. Supports external clock synchronization and trigger control for multi-instrument systems.
