CX3300A Series

Technology
Analysers
Partner
Keysight

The CX3300A series is an all-in-one solution for engineers who need precise insight into power rail behaviour and energy consumption in advanced electronics. Each analyser combines the bandwidth and sampling speed of an oscilloscope with the sensitivity of a precision DMM and the long recording capability of a data logger. This enables capture of extremely low-level currents and rapid voltage transients over extended periods of up to 100 hours continuously. The series is well suited to IoT devices, automotive electronics, and medical devices where both tiny sleep currents and sudden in-rush currents matter. Typical applications include battery drain analysis in wearables and smartphones, ECU power profiling in vehicles, and power integrity validation in medical sensing devices. Two models are available: the 2-channel CX3322A and the 4-channel CX3324A. The 4-channel model also supports digital logic inputs with an optional adapter for mixed-signal power analysis. Overall, the CX3300A series helps engineering teams troubleshoot and optimise power performance with one integrated platform.

Range features

A high level overview of what this range offers

  • 200 MHz bandwidth: Captures fast transient events on power rails, including switching spikes and rapid current changes.
  • 1 GSa/s sampling with 14-bit or 16-bit modes: Lets you choose between full-speed acquisition and higher-resolution, lower-noise measurements.
  • Sub-nA and sub-μV sensitivity: Reveals minute leakage currents and tiny voltage fluctuations in low-power designs.
  • Up to 100 hours continuous recording: Supports long-duration, gap-free waveform capture for logging and rare event detection.
  • Built-in waveform analytics: Includes current profiling, histogram analysis, FFT functions, and anomaly-focused insight tools.
  • 14.1-inch multi-touch display: Makes waveform navigation, zooming, and setup changes faster and more intuitive.
  • Upgradeable bandwidth and memory: Enables field expansion up to 200 MHz bandwidth and up to 256 Mpts per channel without replacing the instrument.
  • 2-channel or 4-channel mainframe options: Choose CX3322A for 2 analog channels or CX3324A for 4 analog channels, with optional 8 digital inputs on the 4-channel model.

Downloads

for CX3300A Series

pdf
CX3300A Series Device Current Waveform Analyzer – Data Sheet
Download

What’s in this range?

All the variants in the range and a comparison of what they offer

Specification

CX3322A

CX3324A

Analog channels

2

4

Digital channels

8 (with adapter)

Max. sample rate

1 GSa/s

1 GSa/s

ADC resolution options

14-bit or 16-bit

14-bit or 16-bit

Analog bandwidth

Up to 200 MHz (50/100/200 MHz configurable)

Up to 200 MHz (50/100/200 MHz configurable)

Memory depth per channel

Up to 256 Mpts (4, 16, 64, 256 Mpts options)

Up to 256 Mpts (4, 16, 64, 256 Mpts options)

Display

14.1-inch WXGA touch screen

14.1-inch WXGA touch screen

Operating system

Windows 10 (embedded)

Windows 10 (embedded)

Dimensions

Bench-top instrument chassis (rack-mountable)

Similar form factor to CX3322A

FAQs

for CX3300A Series

A device current waveform analyser is purpose-built to measure and visualise current waveforms with far higher sensitivity and dynamic range than general-purpose instruments. Unlike a standard oscilloscope, it uses dedicated current sensors to capture current directly from extremely low levels up to high transient peaks. Compared with a DMM, it can capture fast-changing signals over time and record them for extended durations. The CX3300A series effectively combines oscilloscope-like speed, precision current measurement, and long-term logging in one platform.

The main difference is channel count. The CX3322A provides 2 analog channels, while the CX3324A provides 4 analog channels. The CX3324A also supports up to 8 digital logic input channels with an optional adapter, enabling correlation between power measurements and digital events. Core performance such as sample rate, bandwidth options, memory depth, and ADC resolution is otherwise the same across both models. The number of analog channels is fixed per model and cannot be upgraded later.

With the appropriate sensor, the CX3300A series can measure currents down to around 100 pA. At the upper end, it can handle pulses up to approximately 100 A when paired with a suitable high-range current sensor or shunt arrangement. This gives the platform an exceptionally wide usable dynamic range for analysing everything from leakage currents to inrush events.

Yes, it can measure voltage waveforms as well. Although the platform is optimised for current analysis, it supports voltage measurements using compatible differential sensors or a passive probe adapter. This allows engineers to view current and voltage together in a time-correlated way, which is highly valuable for power integrity and power rail analysis.

The analysers include built-in tools for waveform zooming, current and power profiling, histogram-based statistical analysis, CCDF-style evaluation, and FFT spectrum analysis. These functions help users identify operating states, anomalies, and frequency-domain behaviour directly on the instrument. PC-based connectivity and data handling are also supported for additional analysis and remote workflows.

The CX3300A series supports up to 100 hours of continuous waveform capture under suitable memory and sampling configurations. It is designed for gap-free recording, helping engineers catch rare intermittent events over long test periods. This makes it especially useful for battery-life studies, sleep/wake cycle analysis, and long-duration troubleshooting.

Bandwidth and memory are upgradeable on the CX3300A platform. Users can start with lower bandwidth or shallower memory and expand later to higher-performance options such as 200 MHz bandwidth or up to 256 Mpts per channel. However, the analog channel count is not upgradeable, so the choice between CX3322A and CX3324A should be made at purchase.

The CX3300A series uses dedicated external sensors and adapters designed for low-noise, wide-bandwidth measurements. Different sensor heads are available for different current ranges, including very low current and high-current applications. Additional accessories are available for voltage measurement and digital input support, allowing the system to be configured for current, voltage, or mixed-signal power analysis as needed.