Keysight (Agilent) B2961B 6.5-Digit Low Noise Power Source, 32 W, 210 V, 3 A, 1-Channel

The Keysight B2961B is a 6.5-digit low-noise power source delivering 31.8 W across a single channel with bipolar voltage and current sourcing capability. Operating in 4-quadrant mode, it sources voltages from ±200 mV to ±210 V with 100 nV minimum resolution and DC currents up to ±3 A (pulsed to ±10.5 A) with 10 fA resolution. Voltage noise measures 10 µVrms with external filter or 1 nVrms/√Hz at 10 kHz, making it suitable for noise-sensitive device characterization and precision measurements. The instrument integrates arbitrary waveform generation (1 mHz to 10 kHz, seven built-in functions, 100 k-point memory), resistance measurement across nine ranges (2 Ω to 200 MΩ), and 4-wire Kelvin measurement support. A 4.3-inch color LCD with time-domain waveform viewer enables intuitive operation, while 4.5-digit built-in voltage and current monitoring eliminates external verification equipment. The B2961B operates from 0 °C to +55 °C and connects via USB, Ethernet/LXI, and GPIB. Remote control options include web browser interface, Keysight PathWave BenchVue, and PW9251A IV Curve Software. Optional ultra-low noise filtering extends noise performance to 10 µVrms. Programmable output resistance and V/I emulation (up to 16 points) simulate complex load characteristics for advanced component development and validation.

– Technical Specifications

• Resolution: 6.5 digits
• Output Power: 31.8 W
• Voltage Range: ±200 mV to ±210 V
• Minimum Voltage Resolution: 100 nV
• DC Current Range: ±3 A (Pulsed: ±10.5 A)
• Minimum Current Resolution: 10 fA
• Voltage Noise: 10 µVrms (with external filter); 1 nVrms/√Hz at 10 kHz; 3 mVrms typical
• Resistance Measurement: 2 Ω to 200 MΩ (nine ranges)
• AWG Frequency: 1 mHz to 10 kHz
• AWG Memory: 100 k points
• Monitor Resolution: 4.5 digits
• Operating Temperature: 0 °C to +55 °C

– Key Features

• Bipolar 4-quadrant voltage and current sourcing and sinking
• Seven built-in waveforms plus user-defined arbitrary functions
• 4-wire Kelvin measurement for low-resistance accuracy
• Programmable output resistance for load simulation
• V/I emulation mode supporting 16 characterization points
• Time-domain waveform viewer for troubleshooting
• Optional ultra-low noise filter for <10 µVrms performance

– Typical Applications

• Characterization of noise-sensitive semiconductors and components
• Precision power sourcing for advanced circuit development
• Material property measurement and validation
• Device noise and stability analysis

– Compatibility & Integration

• LXI-compliant web browser remote control
• Keysight PathWave BenchVue software integration
• PW9251A PathWave IV Curve Software support
• USB, Ethernet/LXI, GPIB connectivity