National Instruments NI 6120 用户手册
Appendix A
Specifications
A-2
ni.com
ACH+ to ACHGND
NI 6115.....................................100 G
Ω
NI 6120.....................................100 G
Ω
Input bias current ....................................±300 pA
Input offset current .................................±200 pA
Input coupling.........................................DC/AC
Max working voltage for all analog input channels
Positive input (ACH+).....................±11 V for ranges < ±10 V;
±42 V for ranges
≥ ±10 V
Negative input (ACH–) ...................±2.5 V
Overvoltage protection ...........................±42 V
Input current during
overvoltage conditions............................±20 mA max
overvoltage conditions............................±20 mA max
Input FIFO size ....................................... 16 or 32 MS
Data transfers ..........................................DMA, interrupts,
programmed I/O
DMA modes ...........................................Scatter-gather
DC Transfer Characteristics
INL
NI 6115............................................±0.35 LSB typ, ±1 LSB max
NI 6120............................................2.5 LSB max
DNL
NI 6115............................................±0.25 LSB typ, ±1 LSB max
NI 6120............................................0.75 LSB typ, no missing codes
Offset, gain error
NI 6115............................................Refer to Table A-1
NI 6120............................................Refer to Table A-2