The Keysight N2140A is a passive oscilloscope probe engineered for precision analog measurements on Keysight InfiniiVision Series instruments. This switchable attenuator probe delivers DC to 200 MHz bandwidth in 10:1 mode, with selectable 1:1 or 10:1 attenuation to accommodate both low-frequency and high-frequency measurement requirements. The probe’s high input impedance design—10 MΩ at 10:1 attenuation and 1 MΩ at 1:1 attenuation—minimizes loading effects on the device under test, preserving signal integrity across the measurement bandwidth.
Technical Specifications
• Bandwidth: DC to 200 MHz (10:1 attenuation); DC to 6 MHz (1:1 attenuation)
• Attenuation Ratio: Switchable 1:1 or 10:1
• Input Impedance: 10 MΩ (10:1 mode); 1 MΩ (1:1 mode)
• Input Capacitance: 15 pF (10:1 attenuation); 100 pF (1:1 attenuation)
• Maximum Input Voltage: 300 Vrms CAT II (10:1 attenuation); 150 Vrms CAT II (1:1 attenuation)
• Cable Length: 1.3 m
• Connector: BNC (pinhole, no pin)
• Safety Rating: CAT II
– Key Features
• Dual-mode attenuation switching optimizes probe loading for different signal levels and frequencies
• Independent low-frequency and high-frequency compensation adjustments enable precise matching to oscilloscope input characteristics
• Supplied accessories include hook tips, ground springs, ground leads, adjustment tool, and protective cap
• Colored identification rings support multi-probe circuit tracking
– Typical Applications
• General-purpose analog circuit debugging and validation
• High-frequency signal observation up to 200 MHz in 10:1 mode
• Low-impedance circuit measurement in 1:1 mode
• Mains-referenced testing under CAT II safety classification
– Compatibility & Integration
The N2140A integrates with Keysight InfiniiVision Series oscilloscopes equipped with 1 MΩ inputs. The probe is compatible with instruments configured as 1 MΩ paralleled by 20 pF, or recalibrable for instruments with 15 to 30 pF input capacitance. The unit belongs to the N214xA Series passive probe family.
