Agilent / Keysight DSA91204A Infiniium High Performance Oscilloscope: 12 GHz

The Keysight DSA91204A Infiniium is a 12 GHz bandwidth oscilloscope built for high-speed signal integrity and complex waveform analysis. This four-channel instrument captures signals at 40 GSa/s across all channels, with standard memory depth of 50 Mpts and upgradeable capacity to 1 Gpts. Engineers rely on it for detailed characterization of high-speed serial and parallel interfaces, leveraging its low noise floor of 1.45 mVrms at 50 mV/div and sub-500 fs trigger jitter for precision timing measurements.

Technical Specifications

• Bandwidth: 12 GHz (upgradable to 13 GHz)


• Analog Channels: 4


• Maximum Sampling Rate: 40 GSa/s across all 4 channels


• Standard Memory: 50 Mpts; upgradeable to 100 Mpts, 200 Mpts, 500 Mpts, or 1 Gpts


• Noise Floor: 1.45 mVrms at 50 mV/div


• Vertical Scale: 5 mV to 1 V (magnification used below 5 mV/div)


• Resolution Bandwidth: 6 kHz at standard 10 MB memory; 2 kHz with optional acquisition memory


• Trigger Jitter: <500 fs rms


• Time Span Capture: Memory Depth × 1/Sampling Rate


• Supported Windowing: Hanning, Flattop, Rectangular


• Power Requirements: 100–240 V, 47–63 Hz; 800 W maximum

Key Features

• 12.1-inch color XGA TFT-LCD touchscreen display


• Deep acquisition memory options from 20 Mpts to 1 Gpts for extended capture windows


• LAN connectivity (10/100/1000 BaseT) with web-enabled remote access and Ultra VNC


• GPIB and four USB 2.0 host ports for flexible instrument control


• LXI Class C compliant

Typical Applications

• High-speed serial data analysis with SDA software


• Jitter characterization and RJ/DJ separation via EZJIT+


• PCI Express, XAUI, DDR1/DDR2/DDR3, SATA 6 Gb/s, and USB 2.0 compliance testing


• Bandwidth and noise reduction measurements

Compatibility & Integration The oscilloscope integrates with standard test environments via GPIB and Ethernet. Remote operation is supported through LAN and GPIB interfaces. Compliance applications and specialized measurement software are available as options to extend analytical capability for specific protocol standards.