The Keysight B2961B is a 6.5-digit low-noise power source engineered for precision sourcing and measurement of sensitive components and circuits. It delivers 4-quadrant bipolar voltage and current capability—sourcing and sinking simultaneously—with ultra-low noise performance critical for noise-sensitive device characterization. The instrument combines a color LCD graphical interface with comprehensive remote control via LXI web browser, BenchVue, Pathwave BenchVue, Quick I/V Measurement Software, and PW9251A PathWave IV Curve Software.
Technical Specifications
Output and Resolution
• Voltage range: ±210 V with 100 nV minimum resolution
• DC current range: ±3 A with 10 fA minimum resolution
• Pulsed current: Up to 10.5 A
• Maximum power output: 31.8 W
• 4.5-digit integrated voltage and current monitoring with 10 µV and 1 pA measurement resolution
Noise Performance
• Ultra-low noise filter output: 10 µVrms
• Noise density: 1 nV/√Hz at 10 kHz
• Optional external low-noise filters (N1298A/B/C) further reduce output noise while maintaining wide output ranges
Arbitrary Waveform Generation
• Frequency range: 1 mHz to 10 kHz
• Pre-defined waveforms: sinusoidal, exponential, ramp, triangle, square, trapezoidal
• User-defined arbitrary waveforms with up to 100,000 points
• Time-domain waveform viewer integrated in GUI
Output Control
• Programmable output resistance function supporting constant and V/I emulation modes (DC output only)
• Compliance and limit features prevent DUT damage through voltage and current limiting
System Interface
• AC supply: 90 V to 264 V, selectable 50 Hz or 60 Hz operation
• GPIB, USB-B, and LAN (10/100 Base-T) connectivity
• Digital I/O connector (D-sub 25 pin) for GPIO, trigger I/O, handler interface, and interlock circuit
• IVI-C and IVI-CO programming support
– Key Features
• 6.5-digit resolution across voltage and current measurements
• Dual-quadrant operation enables simultaneous sourcing and sinking
• Precision AWG from 1 mHz to 10 kHz with 100,000-point user waveform capacity
• Real-time monitoring with 4.5-digit accuracy
– Typical Applications
Characterization of noise-sensitive analog circuits, device parametric testing, precision power sourcing for semiconductor evaluation, and low-noise waveform generation for transient response analysis.
– Compatibility & Integration
Full remote control integration via Keysight software ecosystem (BenchVue, Pathwave BenchVue, Quick I/V Measurement, PW9251A PathWave IV Curve). Multiple connectivity options support laboratory automation and production test environments.
