PCIe-6374 Specifications

Definitions

Warranted specifications describe the performance of a model under stated operating conditions and are covered by the model warranty.

Characteristics 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.

Analog Input

Note Floating inputs can cause unnecessary power consumption and higher operating temperatures. NI recommends connecting unused analog input channels to AI GND.

Number of channels

4 differential

ADC resolution

16 bits

DNL

No missing codes

INL

Refer to the AI Absolute Accuracy section.

Sample rate (simultaneous sampling on all channels sampled)

Maximum

3.571 MS/s

Minimum

No minimum

Timing resolution

10 ns

Timing accuracy

50 ppm of sample rate

Input coupling

DC

Input range

±1 V, ±2 V, ±5 V, ±10 V

Maximum working voltage for all analog inputs

Positive input (AI+)

±11 V for all ranges, Measurement Category I

Negative input (AI-)

±11 V for all ranges, Measurement Category I

Caution Do not use for measurements within Categories II, III, and IV.

CMRR (at 60 Hz)

75 dB

Bandwidth

1 MHz

THD

-80 dBFS

Input impedance
Device on

AI+ to AI GND

>100 GΩ in parallel with 100 pF

AI- to AI GND

>100 GΩ in parallel with 100 pF

Device off

AI+ to AI GND

2 kΩ

AI- to AI GND

2 kΩ

Input bias current

±10 pA

Crosstalk (at 100 kHz)

Adjacent channels

-80 dB

Non-adjacent channels

-100 dB

Input FIFO size

8,182 samples shared among channels used

Data transfers

DMA (scatter-gather), programmed I/O

Overvoltage protection for AI <0..3>, APFI 0

Device on

±36 V

Device off

±15 V

Input current during overvoltage conditions

±20 mA max/AI pin

Analog Triggers

Number of triggers

1

Source

AI <0..3> , APFI 0

Functions

Start Trigger, Reference Trigger, Pause Trigger, Sample Clock, Sample Clock Timebase

Source level

AI <0..3>

±Full scale

APFI 0

±10 V

Resolution

16 bits

Modes

Analog edge triggering, analog edge triggering with hysteresis, and analog window triggering

Bandwidth (-3 dB)

AI <0..3>

3.4 MHz

APFI 0

3.9 MHz

Accuracy

±1% of range

APFI 0 characteristics

Input impedance

10 kΩ

Coupling

DC

Protection, power on

±30 V

Protection, power off

±15 V

AI Absolute Accuracy (Warranted)

Table 1. AI Absolute Accuracy
Nominal Range Positive Full Scale Nominal Range Negative Full Scale Residual Gain Error (ppm of Reading) Offset Tempco (ppm of Range/°C) Random Noise, σ (μVrms) Absolute Accuracy at Full Scale (μV)
10 -10 114 35 252 2,688
5 -5 120 36 134 1,379
2 -2 120 42 71 564
1 -1 138 50 61 313
Note For more information about absolute accuracy at full scale, refer to the AI Absolute Accuracy Example section.

Gain tempco

8 ppm/°C

Reference tempco

5 ppm/°C

Residual offset error

15 ppm of range

INL error

46 ppm of range

Note Accuracies listed are valid for up to two years from the device external calibration.

AI Absolute Accuracy Equation

AbsoluteAccuracy = Reading · (GainError) + Range · (OffsetError) + NoiseUncertainty

  • GainError = ResidualAIGainError + GainTempco · (TempChangeFromLastInternalCal) + ReferenceTempco · (TempChangeFromLastExternalCal)
  • OffsetError = ResidualAIOffsetError + OffsetTempco · (TempChangeFromLastInternalCal) + INLError
  • NoiseUncertainty =
    RandomNoise3100
    for a coverage factor of 3 σ and averaging 100 points.

AI Absolute Accuracy Example

Absolute accuracy at full scale on the analog input channels is determined using the following assumptions:

  • TempChangeFromLastExternalCal = 10 °C
  • TempChangeFromLastInternalCal = 1 °C
  • number_of_readings = 10,000
  • CoverageFactor = 3 σ

For example, on the 10 V range, the absolute accuracy at full scale is as follows:

  • GainError = 114 ppm + 8 ppm · 1 + 5 ppm · 10 = 172 ppm
  • OffsetError = 15 ppm + 35 ppm ·1 + 46 ppm = 96 ppm
  • Noise Uncertainty =
    252μV310,000
    = 7.6 µV
  • AbsoluteAccuracy = 10 V · (GainError) + 10 V · (OffsetError) + NoiseUncertainty = 2688 µV

Analog Output

Number of channels

2

DAC resolution

16 bits

DNL

±1 LSB, max

Monotonicity

16 bit guaranteed

Accuracy

Refer to the AO Absolute Accuracy section.

Maximum update rate (simultaneous)

1 channel

3.3 MS/s

2 channels

3.3 MS/s

Minimum update rate

No minimum

Timing accuracy

50 ppm of sample rate

Timing resolution

10 ns

Output range

±10 V, ±5 V, ±external reference on APFI 0

Output coupling

DC

Output impedance

0.4 Ω

Output current drive

±5 mA

Overdrive protection

±25 V

Overdrive current

10 mA

Power-on state

±5 mV

Power-on/off glitch

1.5 V peak for 200 ms

Output FIFO size

8,191 samples shared among channels used

Data transfers

DMA (scatter-gather), programmed I/O

AO waveform modes

Non-periodic waveform, periodic waveform regeneration mode from onboard FIFO, periodic waveform regeneration from host buffer including dynamic update

Settling time, full-scale step, 15 ppm (1 LSB)

2 µs

Slew rate

20 V/µs

Glitch energy at midscale transition, ±10 V range

6 nV · s

External Reference

APFI 0 characteristics

Input impedance

10 kΩ

Coupling

DC

Protection, device on

±30 V

Protection, device off

± 15 V

Range

±11 V

Slew rate

±20 V/μs

Figure 1. Analog Output External Reference Bandwidth

1378

AO Absolute Accuracy (Warranted)

Absolute accuracy at full-scale numbers is valid immediately following self calibration and assumes the device is operating within 10 °C of the last external calibration.

Table 2. AO Absolute Accuracy
Nominal Range Positive Full Scale Nominal Range Negative Full Scale Residual Gain Error (ppm of Reading) Gain Tempco (ppm/°C) Reference Tempco (ppm/°C) Residual Offset Error (ppm of Range) Offset Tempco (ppm of Range/°C) INL Error (ppm of Range) Absolute Accuracy at Full Scale (μV)
10 -10 129 17 5 65 1 64 3,256
5 -5 135 8 5 65 1 64 1,616
Note Accuracies listed are valid for up to two years from the device external calibration.

AO Absolute Accuracy Equation

AbsoluteAccuracy = OutputValue ⋅ (GainError) + Range ⋅ (OffsetError)

  • GainError = ResidualGainError + GainTempco ⋅ (TempChangeFromLastInternalCal) + ReferenceTempco ⋅ (TempChangeFromLastExternalCal)
  • OffsetError = ResidualOffsetError + OffsetTempco ⋅ (TempChangeFromLastInternalCal) + INLError

Digital I/O/PFI

Static Characteristics

Number of channels

24 total, 8 (P0.<0..7>), 16 (PFI <0..7>/P1, PFI <8..15>/P2)

Ground reference

D GND

Direction control

Each terminal individually programmable as input or output

Pull-down resistor

50 kΩ typical, 20 kΩ minimum

Input voltage protection

±20 V on up to two pins

Caution Stresses beyond those listed under the Input voltage protection specification may cause permanent damage to the device.

Waveform Characteristics (Port 0 Only)

Terminals used

Port 0 (P0.<0..7>)

Port/sample size

Up to 8 bits

Waveform generation (DO) FIFO

2,047 samples

Waveform acquisition (DI) FIFO

255 samples

DI Sample Clock frequency

0 to 10 MHz, system and bus activity dependent

DO Sample Clock frequency

Regenerate from FIFO

0 to 10 MHz

Streaming from memory

0 to 10 MHz, system and bus activity dependent

Data transfers

DMA (scatter-gather), programmed I/O

Digital line filter settings

160 ns, 10.24 μs, 5.12 ms, disable

PFI/Port 1/Port 2 Functionality

Functionality

Static digital input, static digital output, timing input, timing output

Timing output sources

Many AI, AO, counter, DI, DO timing signals

Debounce filter settings

90 ns, 5.12 µs, 2.56 ms, custom interval, disable; programmable high and low transitions; selectable per input

Recommended Operating Conditions

Input high voltage (VIH)

Minimum

2.2 V

Maximum

5.25 V

Input low voltage (VIL)

Minimum

0 V

Maximum

0.8 V

Output high current (IOH)

P0.<0..7>

-24 mA maximum

PFI <0..15>/P1/P2

-16 mA maximum

Output low current (IOL)

P0.<0..7>

24 mA maximum

PFI <0..15>/P1/P2

16 mA maximum

Digital I/O Characteristics

Positive-going threshold (VT+)

2.2 V maximum

Negative-going threshold (VT-)

0.8 V minimum

Delta VT hysteresis (VT+ - VT-)

0.2 V minimum

IIL input low current (VIN = 0 V)

-10 μA maximum

IIH input high current (VIN = 5 V)

250 μA maximum

Figure 2. P0.<0..7>: IOH versus VOH

1378

Figure 3. PFI <0..15>/P1/P2: IOH versus VOH

1378

Figure 4. P0.<0..7>: IOL versus VOL

1378

Figure 5. PFI <0..15>/P1/P2: IOL versus VOL

1378

Timing I/O

Number of counter/timers

4

Resolution

32 bits

Counter measurements

Edge counting, pulse, pulse width, semi-period, period, two-edge separation

Position measurements

X1, X2, X4 quadrature encoding with Channel Z reloading; two-pulse encoding

Output applications

Pulse, pulse train with dynamic updates, frequency division, equivalent time sampling

Internal base clocks

100 MHz, 20 MHz, 100 kHz

External base clock frequency

0 MHz to 25 MHz

Base clock accuracy

50 ppm

Inputs

Gate, Source, HW_Arm, Aux, A, B, Z, Up_Down, Sample Clock

Routing options for inputs

Any PFI, RTSI, analog trigger, many internal signals

FIFO

127 samples per counter

Data transfers

Dedicated scatter-gather DMA controller for each counter/timer, programmed I/O

Frequency Generator

Number of channels

1

Base clocks

20 MHz, 10 MHz, 100 kHz

Divisors

1 to 16

Base clock accuracy

50 ppm

Output can be available on any PFI terminal.

Phase-Locked Loop (PLL)

Number of PLLs

1

Table 3. Reference Clock Locking Frequencies
Reference Signal Locking Input Frequency (MHz)
RTSI <0..7> 10, 20
PFI <0..7> 10, 20

Output of PLL

100 MHz Timebase; other signals derived from 100 MHz Timebase including 20 MHz and 100 kHz Timebases

External Digital Triggers

Source

Any PFI, RTSI

Polarity

Software-selectable for most signals

Analog input function

Start Trigger, Reference Trigger, Pause Trigger, Sample Clock, Convert Clock, Sample Clock Timebase

Analog output function

Start Trigger, Pause Trigger, Sample Clock, Sample Clock Timebase

Counter/timer functions

Gate, Source, HW_Arm, Aux, A, B, Z, Up_Down, Sample Clock

Digital waveform generation (DO) function

Start Trigger, Pause Trigger, Sample Clock, Sample Clock Timebase

Digital waveform acquisition (DI) function

Start Trigger, Reference Trigger, Pause Trigger, Sample Clock, Sample Clock Timebase

Device-to-Device Trigger Bus

Input source

RTSI <0..7>

Output destination

RTSI <0..7>

Output selections

10 MHz Clock, frequency generator output; many internal signals

Debounce filter settings

90 ns, 5.12 μs, 2.56 ms, custom interval, disable; programmable high and low transitions; selectable per input

Bus Interface

Form factor

x4 PCI Express, specification v1.1 compliant

Slot compatibility

x4, x8, and x16 PCI Express slots[1]

DMA channels

7 DMA, analog output, digital input, digital output, counter/timer 0, counter/timer 1, counter/timer 2, counter/timer 3

Power Requirements

Caution The protection provided by the PCIe-6374 can be impaired if it is used in a manner not described in the user documentation.

+3.3 V

4.0 W

+12 V

13.2 W

Current Limits

Caution Exceeding the current limits may cause unpredictable behavior by the device and/or PC/chassis.

+5 V terminal (connector 0)

1 A maximum [2]

P0/P1/P2/PFI terminals combined

1.4 A maximum

Physical

Printed circuit board dimensions

16.8 cm × 11.1 cm (6.60 in. × 4.38 in.)

Weight

110 g (4.0 oz)

I/O connectors

PCIe device connector

68-Pos Right Angle Single Stack PCB-Mount VHDCI (Receptacle)

Cable connector

68-Pos Offset IDC Cable Connector (Plug) (SHC68-*)

Form factor

Standard height, half length, single slot

Integrated air mover (fan)

No

Note For more information about the connectors used for DAQ devices, refer to the document, NI DAQ Device Custom Cables, Replacement Connectors, and Screws, by going to ni.com/info and entering the Info Code rdspmb.

Calibration

Recommended warm-up time

15 minutes

Calibration interval

2 years

Safety Voltages

Connect only voltages that are below these limits.

Channel-to-earth ground

±11 V, Measurement Category I

Measurement Category I is for measurements performed on circuits not directly connected to the electrical distribution system referred to as MAINS voltage. MAINS is a hazardous live electrical supply system that powers equipment. This category is for measurements of voltages from specially protected secondary circuits. Such voltage measurements include signal levels, special equipment, limited-energy parts of equipment, circuits powered by regulated low-voltage sources, and electronics.

Environmental

This product meets the requirements of the following environmental standards for electrical equipment for measurement, control, and laboratory use.

Maximum altitude

2,000 m (800 mbar) (at 25 °C ambient temperature)

Pollution degree

2

Indoor use only.

Note Clean the device with a soft, non-metallic brush. Make sure that the device is completely dry and free from contaminants before returning it to service.

Operating Environment

Operating temperature, local[3]

0 °C to 50 °C

Operating humidity

10% to 90% RH, noncondensing

System slot airflow

0.4 m/s (80 LFM)

Storage Environment

Ambient temperature range

-20 °C to 70 °C

Relative humidity range

5% to 95% RH, noncondensing

Safety Compliance Standards

This product is designed to meet the requirements of the following electrical equipment safety standards for measurement, control, and laboratory use:

  • IEC 61010-1, EN 61010-1
  • UL 61010-1, CSA C22.2 No. 61010-1
Note For safety certifications, refer to the product label or the Product Certifications and Declarations section.

Electromagnetic Compatibility

This product meets the requirements of the following EMC standards for electrical equipment for measurement, control, and laboratory use:

  • EN 61326-1 (IEC 61326-1): Class A emissions; Industrial immunity
  • EN 55011 (CISPR 11): Group 1, Class A emissions
  • AS/NZS CISPR 11: Group 1, Class A emissions
Note In Europe, Australia and New Zealand (per CISPR 11) Class A equipment is intended for use only in non-residential locations.
Note Group 1 equipment (per CISPR 11) is any industrial, scientific, or medical equipment that does not intentionally generate radio frequency energy for the treatment of material or inspection/analysis purposes.
Notice For EMC declarations and certifications, and additional information, refer to the Product Certifications and Declarations section.

CE Compliance 1378

  • 2011/65/EU; Restriction of Hazardous Substances (RoHS)

Product Certifications and Declarations

Refer to the product Declaration of Conformity (DoC) for additional regulatory compliance information. To obtain product certifications and the DoC for NI products, visit ni.com/product-certifications, search by model number, and click the appropriate link.

Environmental Management

NI is committed to designing and manufacturing products in an environmentally responsible manner. NI recognizes that eliminating certain hazardous substances from our products is beneficial to the environment and to NI customers.

For additional environmental information, refer to the Engineering a Healthy Planet web page at ni.com/environment. This page contains the environmental regulations and directives with which NI complies, as well as other environmental information not included in this document.

EU and UK Customers

  • 1378 Waste Electrical and Electronic Equipment (WEEE)—At the end of the product life cycle, all NI products must be disposed of according to local laws and regulations. For more information about how to recycle NI products in your region, visit ni.com/environment/weee.
  • 电子信息产品污染控制管理办法(中国RoHS)

  • 1378 中国RoHSNI符合中国电子信息产品中限制使用某些有害物质指令(RoHS)。关于NI中国RoHS合规性信息,请登录 ni.com/environment/rohs_china。(For information about China RoHS compliance, go to ni.com/environment/rohs_china.)
  • 1 Some motherboards reserve the x16 slot for graphics use. For PCI Express guidelines, visit ni.com/info and enter the Info Code PCIExpress.

    2 Has a self-resetting fuse that opens when current exceeds this specification.

    3 For PCI Express adapter cards with integrated air movers, NI defines the local operational ambient environment to be at the fan inlet. For cards without integrated air movers, NI defines the local operational ambient environment to be 25 mm (1 in.) upstream of the leading edge of the card. For more information about the local operational ambient environment definition for PCI Express adapter cards, visit ni.com/info and enter the Info Code pcielocalambient.