The Keysight E4727B Advanced Low-Frequency Noise Analyzer (A-LFNA) characterizes semiconductor device noise performance from 30 mHz to 100 MHz. This instrument measures DC characteristics, 1/f noise (flicker noise), and random telegraph noise (RTN) across FETs, BJTs, diodes, and resistors with noise sensitivity of -185 dBV²/Hz. The E4727B operates at voltages up to 200 V and currents up to 100 mA, with 23 selectable impedance values from 0 ohms to 100 MΩ. Integration with PathWave WaferPro Express enables automated measurement routines and wafer mapping without manual programming. Auto-prober control and compatibility with Keysight device modeling tools—PathWave Model Builder and PathWave IC-CAP—support rapid process design kit development, IC noise specification, and manufacturing statistical process control.
Technical Specifications
• Frequency range: 30 mHz to 100 MHz
• Voltage: up to 200 V
• Current: up to 100 mA
• Noise sensitivity: -185 dBV²/Hz
• Impedance: 23 values, 0 ohms to 100 MΩ
• RTN sampling interval: 1/(500 MHz/2^n), n = 0–32
• RTN sampling number: 2^n, n = 10–24
• Operating temperature: 10 to 40 °C
• Storage temperature: -30 to 70 °C
• Dimensions: 298 × 192 × 104.3 mm
• Weight: 8.9 kg
• Power: 100–240 V, 50/60 Hz
– Key Features
• Measures DC characteristics, 1/f noise, and random telegraph noise on discrete devices
• Supports capacitance and RF S-parameter measurements
• Hardware averaging for throughput-accuracy optimization
• Built-in automated measurement routines for DC, 1/f noise, RTN, and data analysis
– Typical Applications
• Process design kit development
• Integrated circuit noise specification
• Manufacturing SPC and reliability assessment
• Device characterization across FETs, BJTs, diodes, and resistors
– Compatibility & Integration
• Pairs with PXIe computer, digitizer, and DC source measurement unit (B1500A)
• Upgradeable from existing Keysight B1500A systems
• Integrates with PathWave WaferPro Express, PathWave Model Builder, and PathWave IC-CAP
• Automated control of major wafer probing systems
• Supplied with MDR 40-pin cable (2 m), SMA(m)–SMA(m) coaxial cables (1 m and 0.2 m)


















