JYTEK PCIe-69529, User Manual

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2
1�3 Specifications
1�3�1 Analog Input
Channel Characteristics
Channels 8
Type Differential or pseudo-differential
Coupling AC or DC, software selectable
AC coupling cutoff frequency 0.5Hz
ADC resolution 24-Bit
ADC type Delta-sigma
Input signal range ±10V, ±1V
Sampling rate (FS) 8 kS/s to 204.8 kS/s,
768 μS/s increments for Fs > 108 kS/s,
576 μS/s increments for 54 kS/s ≤ Fs ≤108 kS/s
192 μS/s increments for 8KS/s≤ Fs ≤54kS/s
Over voltage protection Differential:
±42.4V,
Pseudo-differential:
• positive terminal ±42.4 V
• negative terminal unprotected, rated at ±2.5 V
Input impedance 1MΩ, (50Ω between negative input and system ground for
pseudo-differential mode)
Offset error ±1 mV max.
Gain error ±0.1% of FSR
IEPE Current 4 mA, each channel independently software configurable
IEPE Compliance 24V
System Noise
Sample Rate (kS/s) System Noise1 (LSBrms)
1
Fs = 54 kS/s 37.4
Fs = 108 kS/s 66.5
Fs = 192 kS/s 74.6
1. Shorted input
Common Mode Rejection Ratio (CMRR)
Input Range (V) CMRR
1
(dB)
±1V 65
±10V 80
1. Input frequency < 1 kHz