Keysight 4194A Impedance/Gain-Phase Analyzer

4194A Impedance/Gain-Phase Analyzer
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The 4194A Impedance/Gain-Phase Analyzer is an integrated solution for efficient measurement and analysis or go/no-go testing of components and circuits. Detailed impedance and transmission characteristics including secondary parameter derivations can be simply and quickly evaluated or tested. The 4194A can contribute to improving engineering productivity and reducing test cost. The analyzer is flexible and has a wide measurement capabilities in both impedance and transmission measurements, plus it is fully programmable using Auto Sequence Programming (ASP). Desired measurements and computations, including graphics analysis, can be programmed simply by storing front panel keystroke operations, allowing you to customize measurement, computation and analysis functions. The 4194A also features high accuracy and error elimination functions to ensure reliable measurements.


4194A Impedance/Gain-Phase Analyzer
Opt 350*: 50 Ohm System
Opt 375*: 75 Ohm System
Opt W30: 3-year hardware support
Opt 001: High Stability Frequency Reference
HP 41941A* Impedance Probe Kit (1.5m)
HP 41941B* Impedance Probe Kit (3 m)
*Must select either OPT.350 or 375


  • High Accuracy and Wide Range:
    • Impedance Measurement: 100Hz to 40MHz, 0.1mΩ to 1.6MΩ,0.17%
    • 10 kHz to 100 MHz, 0.1Ω to 1MΩ, 1.5% when used with the 41941A/B
    • Gain-Phase Measurement: 10 Hz to 100MHz, -107dBm to +15dBm, 0.1dB resolution
  • Flexible Measurement, Computation and Analysis Capabilities on a Color Graphic Display
  • Fully Programmable


Impedance Measurements
  • Measurement Parameters: |Z|, |Y|, θ, R, X, G, B, L, C, D, Q. 20 parameter combinations are available.
  • Test Frequency: 100 Hz - 40 MHz (cable length: 0m), 100Hz - 15 MHz (cable length: 1m), 1mHz resolution
  • OSC Level: 10 mV - 1Vrms (≤10MHz), 10mV - 0.5Vrms (> 10MHz), 3 digit resolution
  • DC Bias:0 - +40V, 10mV resolution
  • Measurement terminal: 4 - terminal pair configuration
  • Measurement Range and Max. Resolution:
    Range Max. Resolution
    |Z|, R, X 10mΩ to 100MΩ 100μΩ
    |Y|, G, B 10nS to 100S 1nS
    θ + 180° 0.01°
    L 1nH to 100kH 10pH
    C 10fF to 0.1F 0.1fF
    D 0.001 to 10 0.0001
    Q 0.1 to 1000 0.1
  • Basic Measurement Accuracy: 0.17%