PXI多功能I/O模块
在单个PXI模块中提供模拟I/O、数字I/O、计数器/定时器以及触发功能的组合。
PXI多功能I/O模块提供多种不同的I/O，具有不同的通道数、采样率和输出速率，不同型号之间还具有的定时、触发和同步。该模块适用于实验室研究、设计验证测试和制造测试等工业应用。PXI多功能I/O模块还具有NI-DAQmx驱动程序和配置实用程序，可简化配置和测量。NI-DAQmx支持NI编程环境以及Python、ANSI C、C#.NET和MathWorks MATLAB软件。
NI 6115/6120 Specifications
This document lists the specifications for the NI 6115/6120. For the most current edition of this
document, refer to ni.com/manuals. Refer to the DAQ Getting Started Guide for more
information about accessing documents on the NI-DAQ media.
Definitions
Warranted specifications describe the performance of a model under stated operating conditions
and are covered by the model warranty.
The following characteristic specifications describe values that are relevant to the use of the
model under stated operating conditions but are not covered by the model warranty.
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Typical specifications describe the performance met by a majority of models.
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Nominal specifications describe an attribute that is d on design, conformance testing,
or supplemental testing.
Specifications are Typical unless otherwise noted.
The following specifications are typical at 25 °C unless otherwise noted.
Analog Input
Input Characteristics
Number of channels.......................................... 4 pseudodifferential
Type of ADC
Resolution
NI 6115 ............................................. 12 bits, 1 in 4,096
NI 6120............................................. 16 bits, 1 in 65,536
Pipeline
NI 6115 ............................................. 2
NI 6120............................................. 0
Sampling rate
Maximum
NI 6115 ............................................. 10 MS/s
NI 6120............................................. 800 kS/s
Minimum
NI 6115 ............................................. 20 kS/s
NI 6120............................................. No minimum
Input impedance
AI + to AI -
Range ??±10 V..................................1 M??in parallel with 100 pF
Range > ±10 V..................................10 k??in parallel with 40 pF
AI - to AI GND
NI 6115 .............................................100 G? in parallel with 10 nF
NI 6120 .............................................100 G? in parallel with 100 pF
AI + to AI GND
NI 6115 .............................................100 G? in parallel with 100 pF
NI 6120 .............................................100 G? in parallel with 100 pF
Input bias current ..............................................±300 pA
Input offset current............................................±200 pA
Input coupling ...................................................DC/AC
Maximum working voltage for all analog input channels
Positive input (AI +) .................................±42 V for ±20 V and ±42 V ranges;
±11 V for other ranges
Negative input (AI -).................................±2.5 V
Overvoltage protection
(AI +, AI -)........................................................±42 V
Input current during
overvoltage conditions......................................±20 mA, maximum
Input FIFO size .................................................16 MS or 32 MS
Data transfers ....................................................DMA, interrupts, programmed I/O
DMA mode .......................................................Scatter-gather
DC Transfer Characteristics
INL
NI 6115 .....................................................±0.35 LSB
±1 LSB maximum
NI 6120 .....................................................±2.5 LSB maximum
DNL
NI 6115 .....................................................±0.25 LSB
±1 LSB maximum
NI 6120 .....................................................0.75 LSB
no missing codes
Offset, gain error...............................................Refer to Tables 1 and 21
