Description

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. • Typical specifications describe the performance met by a majority of models. • Nominal specifications describe an attribute that is based on design, conformance testing, or supplemental testing. Specifications are Typical unless otherwise noted. The following specifications are typical at 25 °C unless otherwise noted.

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

Dynamic Characteristics
Analog filters
Number
NI 6115 ……………………………………… 2
NI 6120……………………………………… 1
Type
NI 6115 ……………………………………… 3-pole Bessel
NI 6120……………………………………… 5-pole Bessel
Frequency
NI 6115 ……………………………………… 50 kHz and 500 kHz (software-enabled)
NI 6120……………………………………… 100 kHz
(software-enabled)
Crosstalk ………………………………………………….. -80 dB, DC to 100 kHz

PXI-6115 NI 6115/6120 Data Specifications

Description

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