The Keysight CX1202A is a sensor head accessory that extends the measurement capabilities of CX3300 series device current waveform analyzers. Operating as a coaxial through-element with integrated voltage monitoring, it connects to CX1101A or CX1102A current sensors to enable wideband dynamic current characterization from 40 nA to 1 A. The unit features three SMA connectors: two for ammeter positive and negative terminals, and one dedicated to voltage monitoring via voltmeter or oscilloscope connection.
This sensor head is essential for power rail characterization, power integrity assessment, and dynamic current/voltage profiling in electronic devices. Engineers use it to capture transient behavior during specific events or operational states—sleep modes, wake-up transitions, and active states—making it particularly valuable for low-power IoT and intermittent-duty device analysis where conventional probes mask critical consumption patterns.
Technical Specifications
• Current measurement range: 40 nA to 1 A
• Maximum current: 1 A
• Connector type: SMA coaxial
• Form factor: Coaxial through with voltage monitor
• Voltage monitoring: Dedicated SMA connector included
– Key Features
• Two ammeter terminals (positive/negative) via SMA connectors for current sensing
• Separate voltage monitoring channel enabling simultaneous voltage and current capture
• Wideband dynamic measurement capability spanning six orders of magnitude (40 nA to 1 A)
• Direct integration with Keysight current sensor ecosystem
– Typical Applications
• Dynamic power rail characterization and power integrity analysis
• Device current consumption profiling at specific operational events
• Sleep/wake/active mode current behavior measurement in battery-powered systems
• Design validation and power optimization in IoT and low-power applications
• Detailed transient analysis masked by conventional measurement techniques
– Compatibility & Integration
Designed for Keysight CX3300 series device current waveform analyzers. Compatible current sensors include CX1101A and CX1102A models. All connections standardized on SMA connectors for reliable integration into existing measurement setups.
