Keysight E4991B Impedance Analyzer

Keysight E4991B Impedance Analyzer – 1 MHz to 500 MHz / 1 GHz / 3 GHz

Overview

The Keysight E4991B is a high-performance impedance analyzer designed for electronic components, semiconductor devices, and materials characterization. With upgradable frequency options up to 3 GHz, wide impedance range, and advanced material measurement capabilities, it is ideal for both R&D and production testing.

Applications

• Characterization of passive components (L, C, R)
• Semiconductor device evaluation
• Dielectric and magnetic materials testing
• Temperature-dependent material analysis
• On-wafer and micro-component measurements

Technical Specifications

• Frequency Options: 1 MHz to 500 MHz / 1 GHz / 3 GHz (upgradeable)

• Accuracy: ±0.65% basic accuracy

• Impedance Range: 120 mΩ to 52 kΩ (10% accuracy range)

• Measurement Parameters: |Z|, |Y|, θ, R, X, G, B, L, C, D, Q, |Γ|, Γx, Γy, θΓ, Vac, Iac, Vdc¹, Idc¹ (Option 001 required)

• Built-in DC Bias (Opt. 001): 0 V to ±40 V, 0 A to ±100 mA

• Display: 10.4-inch color LCD, 4-channel / 4-trace with touch screen

• Data Analysis: Equivalent circuit analysis, limit line test

• Material Measurements (Opt. 002): |εr|, εr′, εr′′, tanδ(ε), |μr|, μr′, μr′′, tanδ(μ)

• Temperature Characteristics (Opt. 007): Temperature-dependent material testing

• On-Wafer Measurements (Opt. 010): Probe station connection kit up to 3 GHz

Key Features

• Flexible upgradeable frequency coverage

• Built-in DC bias for semiconductor and materials testing

• Advanced dielectric and magnetic material measurement functions

• Reliable on-wafer and micro-component testing with probe station kit

• Works with Keysight N1500A-005 Material Measurement Suite for simplified setup and reporting (up to 1 GHz)