The NI SCC-LP01 is a dual-channel lowpass filter module designed for integration into the National Instruments SCC signal conditioning carrier system. It provides fourth-order Butterworth filtering with a 25 Hz cutoff frequency and 80 dB/decade roll-off to attenuate high-frequency noise and improve measurement fidelity in data acquisition chains. The module accepts differential input signals up to ±10 V, attenuates by a factor of two, and delivers output up to ±5 V with exceptionally low distortion at –90 dB THD. Built-in differential attenuation and cascading capability enable flexible multi-stage signal conditioning architectures.
Technical Specifications
• Filter Type: Fourth-order Butterworth, 2 channels
• Cutoff Frequency: 25 Hz
• Roll-off Rate: 80 dB per decade
• THD: –90 dB at cutoff frequency
• Input Voltage (differential): ±10 V
• Output Signal Range: ±5 V
• Gain: 0.5
• Input Impedance: 10 GΩ
• Input Capacitance: 10 pF
• Maximum Working Voltage: ±15 V
• Power Consumption: 135 mW (maximum)
• Operating Temperature: 0 to 50 °C
• Storage Temperature: –20 to 70 °C
• Relative Humidity: 10 to 90% (non-condensing)
– Key Features
• Differential attenuator built in for 2:1 signal reduction
• High input impedance (10 GΩ) minimizes loading effects
• Compact form factor: 8.89 × 2.92 × 1.85 cm, 37 g
• Low power draw supports extended battery-powered deployments
• Field-wiring compatible with 28–16 AWG conductor diameters
– Typical Applications
Analog signal conditioning for sensor networks, low-frequency vibration monitoring, EMI rejection in precision instrumentation, and multi-stage noise filtering in laboratory and industrial data acquisition systems.
– Compatibility & Integration
Works within NI SCC carriers and compatible with M Series, E Series, and select B Series and portable multifunction DAQ devices. Cascades with other SCC modules and configures as a second stage alongside modules such as the SCC-A10 voltage attenuator. Interfaces via one 20-pin right-angle male I/O connector and one 4-pin screw terminal.
