Agilent / Keysight DSO90404A Infiniium High Performance Oscilloscope: 4 GHz

The Agilent/Keysight DSO90404A Infiniium is a 4 GHz bandwidth oscilloscope engineered for signal integrity analysis, protocol debugging, and compliance testing across telecommunications, semiconductor, and R&D environments. It combines high bandwidth with deep acquisition memory, fast sampling, and advanced triggering to capture and analyze complex signal behavior with precision.

Technical Specifications

• 4 GHz bandwidth (upgradeable to 13 GHz)


• Up to 20 GSa/s sample rate on all channels


• 4 analog channels; optional 16 digital channels (MSO models) Memory & Resolution


• Standard memory: 20 Mpts per channel; upgradeable to 50 Mpts, 100 Mpts, 200 Mpts, 500 Mpts, or 1 Gpts


• 10-bit vertical resolution; up to 16-bit with High Resolution mode


• Noise floor: 0.79 mVrms at 50 mV/div Jitter Performance


• Intrinsic jitter: 100 fs typical


• EZJIT jitter analysis software included Display & Interface


• 15-inch XGA touchscreen display (1024 × 768 pixels)


• USB host/device ports, dual LAN (10/100/1000Base-T, LXI Class C)


• DisplayPort and VGA outputs for external displays


• External timebase reference input

Key Features

• InfiniiScan advanced triggering: edge, glitch, runt, timeout, pattern/pulse range, state, pulse width, line, window, setup and hold, video, and serial triggering


• Digital and mixed-signal triggering for time-correlated analog/digital capture


• Serial data analysis with clock recovery

Typical Applications

• Serial protocol analysis: USB, PCIe, SATA, CAN, I2C, SPI, UART, MIPI D-Phy, FlexRay, LIN, JTAG, digRF, SVID, 8B/10B


• Memory characterization: DDR compliance and design validation


• Ethernet compliance: 10-Base-T, 100-Base-T, 1000-Base-T testing


• USB-IF compliance testing

Compatibility & Integration

• MATLAB support


• Instrument calibration tracking


• GPIB to LAN adapter available