제품소개

제품소개

NI-9250 / 783827-01

ㆍ▷ 2-채널, 102.4 kS/s/ch 동시, ±5 V, C 시리즈 사운드 및 진동 입력 모듈

ㆍ▷ BNC connectivity

ㆍ▷ 114 dB dynamic range at 51.2 kS/s

ㆍ▷ <10 μVrms noise

Data sheet

Features
• BNC connectivity
• 114 dB dynamic range at 51.2 kS/s
• <10 μVrms noise
• Smart TEDS sensor compatibility
• Software-selectable IEPE signal conditioning
• Software-selectable AC/DC coupling

Specification & Introduction
 Input Characteristics
• Number of channels 
    2 analog input channels
• ADC resolution 
    24 bits
• Type of ADC 
    Delta-Sigma with analog prefiltering
• Sampling mode 
    Simultaneous
• Input coupling 
    Software-selectable AC/DC
• Type of TEDS supported 
    IEEE 1451.4 TEDS Class I
• TEDS capacitive drive 
    5,000 pF
• Internal master timebase (fM)
    Frequency 
        13.1072 MHz
    Accuracy 
        ±100 ppm maximum
• Data rate range (fs)
    Using internal master timebase
        Minimum 
            267 S/s
        Maximum 
            102.4 kS/s
    Using external master timebase
        Minimum 
            244.141 S/s
        Maximum 
            102.734 kS/s
• Input delay1 
    34/fs + 2.7 μs
• Overvoltage protection 
    ±30 V maximum on one channel at a time
• Input impedance
    AI+ to chassis 
        2 MΩ || 280 pF
    AI- to chassis 
        50 Ω
• Input voltage range
    Minimum 
        ±5 Vpk
    Typical 
        ±5.1 Vpk
    Scaling coefficient 
        608,896 pV/LSB
Maximum input voltage
    AI+ to Ground 
        ±5.14 Vpk
    AI- to Ground (Common Mode) 
        ±0.11 V
• IEPE excitation current (software-selectable on/off)
    Minimum 
        2 mA
    Typical 
        2.1 mA
• IEPE excitation noise 
        70 nArms at 102.4 kS/s
• IEPE compliance voltage2 
        19 V maximum
• High pass filter cutoff frequency (AC)
    -3 dB 
        0.43 Hz
    -0.1 dB 
        2.77 Hz

Ordering Information