The Keysight CX1105A is a high-performance differential sensor that enables dynamic current measurements from 1 µA to 100 A across frequencies up to 100 MHz. Designed exclusively for the CX3300 series Device Current Waveform Analyzers, this non-intrusive accessory measures differential voltage across existing shunt resistors on test boards and converts the signal to current waveforms within the mainframe. The sensor operates with common mode voltage ranges of ±40 V or ±6 V and delivers noise performance for precision current analysis.
The CX1105A integrates with customer-supplied shunt resistors, eliminating the need for external current measurement hardware. Furnished with shielded twist-pair cables for quick connectivity, the sensor supports temperature operation from −50 °C to +150 °C with optional extended-length cabling. This architecture makes it ideal for engineers and laboratories performing detailed power delivery network (PDN) characterization, component profiling, and dynamic current consumption analysis.
– Technical Specifications
• Dynamic Current Measurement Range: 1 µA to 100 A
• Maximum Bandwidth: 100 MHz
• Common Mode Voltage Range: ±40 V or ±6 V
• Noise Performance: Industry-lowest-noise differential sensing
• Operating Temperature Range: −50 °C to +150 °C (with optional shielded twisted pair cable)
• Measurement Method: Differential voltage sensing across existing shunt resistors, converted to current waveform by CX3300 mainframe
– Key Features
• Non-intrusive measurement utilizing existing board-level shunt resistors
• Low-noise current sensing from 1 µA full scale
• Standalone bandwidth of 100 MHz
• Includes shielded twist-pair cables for signal integrity
• Optional 1 m extended cable for temperature-controlled test environments
– Typical Applications
• Power delivery network (PDN) analysis and characterization
• IoT device current profiling and power consumption measurement
• Mobile and automotive electronics current waveform analysis
• Microcontroller low-power mode transition monitoring
• Bluetooth low energy device current consumption assessment
– Compatibility & Integration
The CX1105A operates exclusively with Keysight CX3300 series Device Current Waveform Analyzers. Connection utilizes existing evaluation board shunt resistors, requiring no additional external components. Comprehensive documentation including user manuals, application notes, and detailed datasheets is available for setup, calibration, and operation guidance.
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