Broad Instantaneous Dynamic Range and Low Noise Floor. High quality analog to digital circuitry is fundamental to high quality seismic data recording. GTI spares no expense for its NuSeis technology when selecting the state-of-the-art. Maxim A/D converter (MAX11216) with 148 dB of instantaneous dynamic range. Others buy dated chips that run with degraded quality in low power mode, but the results are not the same.