Agilent/Keysight N1298C

The Keysight N1298C is a low-noise filter accessory engineered to enhance the performance of Keysight B2960B Series precision source/measure units. It reduces voltage and current noise across both sourcing and measurement functions, delivering output characteristics comparable to linear power supplies. The filter supports DC voltage outputs to 210 V and current outputs to 3 A, with an output resistance of 0.3 Ω nominal in 2-wire configuration.

– Technical Specifications

• Maximum Output Range: 210 V DC; 3 A DC
• Output Resistance (2-wire): 0.3 Ω nominal
• Maximum Capacitive Load: 1 mF
• Voltage Noise (Sourcing): 5 μVpp (0.1 to 10 Hz); 30 μVrms (10 to 20 MHz)
• Current Noise (Sourcing): 60 pApp (0.1 to 10 Hz); 450 nArms (10 to 1 MHz)
• Small Signal Bandwidth: 2 kHz nominal (1 A/3 A ranges); 800 Hz nominal (100 mA range)
• Output Connectors: Banana jacks

– Key Features

• Reduces noise floor for both voltage and current sourcing
• Supports bipolar voltage and current operation across wide ranges
• 4-wire connection capability for accurate remote sourcing and measurement
• Drives capacitive loads up to 1 mF
• 0.3 Ω output resistance minimizes voltage drop at measurement points

– Compatibility & Integration

The N1298C is designed specifically for integration with the Keysight B2961B/B2962B low-noise power sources and compatible B2960B Series SMUs. When connected, the filter significantly reduces the residual noise floor of the measurement system, enabling precision applications requiring ultra-clean signal sourcing.