E4990A Impedance Analyzer
- ModelE4990A（频率选件：010/020/030/050/120）
- AttributesLCR Meter and Impedance Measurement Products
- Category KEYSIGHT > LCR Meters & Impedance Measurement Products
- BrandKEYSIGHT
- DescriptionThe Keysight E4990A impedance analyzer covers 20 Hz to 120 MHz, supports four-terminal pair high-precision impedance measurement, has a built-in ±40V/±100mA DC bias, and is equipped with a 10.4-inch large screen and various sweep analysis functions, suita
Detailed Introduction Technical Documents
Overview
Keysight E4990A Impedance Analyzer, with a frequency range from 20 Hz to 10/20/30/50/120 MHz, provides high-precision wide impedance measurement capability, and is suitable for impedance characteristic analysis and evaluation of components, materials and electronic devices.
Key Features
Wide frequency range:20Hz to 120MHz (Option 120), 1mHz resolution, 7 ppm typical frequency accuracy
Multiple measurement parameters:|Z|, θz, |Y|, θy, Cp, Cs, Lp, Ls, Rp, Rs, D, Q, R, X, G, B, complex Z and complex Y
Built-in DC Bias: Voltage Bias 0 to ±40V (1mV resolution), Current Bias 0 to ±100mA (40μA resolution)
Flexible Sweep Function: Supports linear and logarithmic sweep of frequency, signal level and DC bias. The number of measurement points ranges from 2 to 1601, and segmented sweep supports up to 201 segments
High-precision Measurement: 4-terminal pair port structure, combined with user calibration and fixture compensation, enables high-precision impedance measurement
Large-screen Display and Data Analysis: 10.4-inch TFT color LCD (1024×768), 10 independent cursors per trace, supports data operation, equivalent circuit analysis and limit line test
Applications
Impedance/Admittance Characteristic Analysis of Components (Capacitors, Inductors, Resistors)
Permittivity and Permeability Test of Materials
Parasitic Parameter Evaluation of Semiconductor Devices (Diodes, Transistors)
R&D and production test of electronic components such as resonators, filters and sensors
Technical Specifications
| Parameter Category | Detailed Specifications |
Measurement Terminal | Four-terminal pair configuration with four female BNC connectors; Option 120 can be converted to 7 mm port via 42942A or SMA port via 42941A |
Measurement Parameters | Z, θz, Y, θy, Cp, Cs, Lp, Ls, Rp, Rs, D, Q, R, X, G, B, Complex Z, Complex Y; Level monitoring: Vac, Iac, Vdc, Idc |
Frequency Range | 20 Hz - 10 MHz (Option 010) / 20 MHz (Option 020) / 30 MHz (Option 030) / 50 MHz (Option 050) / 120 MHz (Option 120) |
Frequency Resolution | 1 mHz |
Frequency Accuracy | 7 ppm ±1 mHz (typical, without Option 1E5); with Option 1E5: 1 ppm ±1 mHz |
Signal Level (Voltage) | 5 mVrms to 1 Vrms, with 1 mV resolution |
Signal Level (Current) | 200μArms to 20mArms, Resolution 20μA |
DC Bias (Voltage) | 0 to ±40V, Resolution 1mV, Accuracy ±[0.1%+(5+30×Imon)mV] |
DC Bias (Current) | 0 to ±100mA, Resolution 40μA, Accuracy ±[2%+(0.2+√Imon/20)mA] |
Number of Measurement Points | 2 to 1601 points |
Sweep Type | Linear/Logarithmic Frequency, OSC Level (Voltage/Current), DC Bias (Voltage/Current) |
Measurement Time (Typical) | Dependent on frequency and adapter, fastest approx. 2ms |
Measurement Accuracy (Impedance) | Refer to formulas and charts on pages 10-18 of the technical documentation (±0.08% achievable under typical conditions) |
Calibration Method | User calibration (Open/Short/Load), port extension, fixture compensation |
Display | 10.4-inch TFT color LCD, 1024×768 (XGA) |
Number of Traces | 4 data traces per channel, 4 memory traces |
Accessories
Standard Accessories | Power cord, operation manual (CD), safety guide; test fixture is optional and requires separate purchase |
Frequency Options | E4990A-010 (20Hz-10MHz), -020 (20Hz-20MHz), -030 (20Hz-30MHz), -050 (20Hz-50MHz), -120 (20Hz-120MHz) |
Stability Option | Option 1E5: High Stability Frequency Reference (±1ppm) |
Adapters/Probes | 42942A (7mm Termination Adapter), 42941A (SMA Impedance Probe) |
Test Fixtures | 16047E (Direct Connection Type), 16048G (Four-terminal Pair 1m), 16048H (Four-terminal Pair 2m), etc |
Other Options | 1CM (Rack Mount Kit), 1A7 (ISO 17025 Calibration Certificate), A6J (ANSI Z540 Calibration Certificate) |
Interfaces
Standard GPIB (IEEE-488), LAN (10/100/1000 Base T Ethernet), USB (Type B, USBTMC-USB488), USB Host Port (Type A, for connecting mouse/keyboard/printer), Video Output (15-pin VGA)
Options Manipulator Interface (36-pin Parallel, Optically Isolated), External Trigger Input (BNC, TTL)
Physical Specifications
Length × Width × Height Approx. 430×280×450 mm
W eight 14 kg
Friendly Reminder: The above product information is compiled based on official technical materials of Keysight Technologies, for reference only. Product specifications, options and configurations are subject to adjustment with manufacturer updates, please refer to the actual delivered product and the latest official release for details.
