2 or 4 simultaneously sampled analog inputs 2 simultaneously updated analog outputs (NI 4461 only) 118 dB dynamic range, 24-bit resolution 204.8 kS/s maximum sampling rate 92 kHz alias-free bandwidth Input range from ±316 mV to 42.4 V 6 gain settings AC/DC coupling Antialiasing and anti-imaging protection IEPE conditioning – software-configurable Multimodule synchronization Overview The National Instruments 4461 and 4462 are high-accuracy data acquisition devices specifically designed for sound and vibration applications. The devices include the hardware and software needed to make precision measurements with microphones, accelerometers, and other transducers that have very large dynamic ranges. Common applications for the NI 446x include audio test, automotive test, noise, vibration, and harshness (NVH) analysis, and machine condition monitoring (MCM). The NI 446x devices offer a complete range of functionality for sound and vibration monitoring and analysis applications. With either two inputs and two outputs, or four inputs, they are ideal for applications where simultaneous generation and acquisition of noise, vibration, and acoustic signals are required. You can synchronize the acquisition clock of your NI 446x with other instruments in your system for mixed-signal applications. Both analog and digital triggering are available on an NI 446x.