型号: PCIe-6351

产品编号: 781048-01

DEVICE SPECIFICATIONS NI 6351






X Series Data Acquisition: 1.25 MS/s, 16 AI, 24 DIO, 2 AO


The following specifications are typical at 25 °C, unless otherwise noted. For more information about the NI 6351, refer to the X Series User Manual available from ni.com/ manuals.

Analog Input

Number   of channels

8 differential or 16 single ended

ADC   resolution

16 bits

DNL

No missing codes guaranteed

INL

Refer to the AI Absolute Accuracy section.

Sample   rate


Single   channel maximum

1.25 MS/s

Multichannel maximum (aggregate)

1.00 MS/s

Minimum

No minimum

Timing   resolution

10 ns

Timing   accuracy

50 ppm of sample rate

Input   coupling

DC

Input   range

±0.1 V,   ±0.2 V, ±0.5 V, ±1 V, ±2 V, ±5 V,

±10 V

Maximum   working voltage for analog inputs (signal + common mode)

±11 V of AI GND

CMRR (DC   to 60 Hz)

100 dB

Input   impedance


Device   on


AI+ to   AI GND

>10 GΩ in parallel with 100 pF

AI- to   AI GND

>10 GΩ in parallel with 100 pF

Device off

AI+ to   AI GND

820 Ω

AI- to   AI GND

820 Ω

Input   bias current

±100 pA

Crosstalk   (at 100 kHz)


Adjacent   channels

-75 dB

Non-adjacent   channels

-95 dB

Small   signal bandwidth (-3 dB)

1.7 MHz

Input   FIFO size

2,047 samples

Scan   list memory

4,095 entries

Data   transfers


PCIe

DMA (scatter-gather), programmed I/O

USB

USB Signal Stream, programmed I/O

Overvoltage protection for all analog input and sense channels

Settling Time for Multichannel Measurements

Range

±60 ppm of Step   (±4 LSB for Full-Scale Step)

±15 ppm of Step   (±1 LSB for Full-Scale Step)

±10 V, ±5   V, ±2 V,

±1 V

1 μs

1.5 μs

±0.5 V

1.5 μs

2 μs

±0.2 V, ±0.1 V

2 μs

8 μs

Typical Performance Graphs

Figure 1. Settling Error versus Time for Different Source Impedances

Figure 2. AI <0..15> Small Signal Bandwidth

Figure 3. AI <0..15> CMRR

AI Absolute Accuracy

Table 1. AI Absolute Accuracy

Nominal

Range

Positive

Full   Scale

Nominal Range

Negative

Full   Scale

Residual

Gain   Error

(ppm of

Reading)

Residual

Offset

Error (ppm of   Range)

Offset

Tempco

(ppm   of

Range/°C)

Random

Noise,   σ

(μVrms)

Absolute

Accuracy at

Full   Scale

(μV)

10

-10

48

13

21

281

1,520

5

-5

55

13

21

137

800

2

-2

55

13

24

56

320

1

-1

65

17

27

35

180

0.5

-0.5

68

17

34

26

95

0.2

-0.2

95

27

55

21

50

0.1

-0.1

108

45

90

16

32

For more information about absolute accuracy at full scale, refer to the AI Absolute Accuracy Example section.

Gain tempco                                                    13 ppm/°C

Reference   tempco

1 ppm/°C

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) + NoiseUncertainity

GainError = ResidualGainError + GainTempco · (TempChangeFromLastInternalCal) +

ReferenceTempco · (TempChangeFromLastExternalCal)

OffsetError = ResidualOffsetError + OffsetTempco · (TempChangeFromLastInternalCal) + INLError

                                       Random Noise ⋅   3

NoiseUncertainty =  for a coverage factor of 3 σ and averaging 10, 000 10,000 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 = 48 ppm + 13 ppm · 1 + 1 ppm · 10 = 71 ppm

OffsetError = 13 ppm + 21 ppm · 1 + 46 ppm = 80 ppm

NoiseUncertainty =  = 8.4 µV

AbsoluteAccuracy = 10 V · (GainError) + 10 V · (OffsetError) + NoiseUncertainty =

1,520 µV

Analog Triggers

Number of triggers                                             1

Source

AI <0..15>, APFI 0

Functions

Start   Trigger, Reference Trigger, Pause

Trigger, Sample Clock, Convert Clock,   Sample

Clock Timebase

Source   level


AI   <0..15>

±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..15>

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

Analog Output


Number   of channels

2

DAC   resolution

16 bits

DNL

±1 LSB

Monotonicity

16 bit guaranteed

Accuracy

Refer to the AO Absolute Accuracy table.

Maximum   update rate


1   channel

2.86 MS/s

2   channels

2.00 MS/s

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

0.2 Ω

Output   current drive

±5 mA

Overdrive   protection

±25 V

Overrdrive   current

26 mA

Power-on   state

±5 mV

Power   on/off glitch


PCIe

1.5 V peak for 200 ms

USB

1.5 V for 1.2 s[1]

Output   FIFO size

8,191 samples shared among channels used

Data   transfers


PCIe

DMA (scatter-gather), programmed I/O

USB

USB Signal Stream, 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

10 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 4. AO External Reference Bandwidth

AO Absolute Accuracy

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

63

17

1

33

2

64

1,890

5

-5

70

8

1

33

2

64

935

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


PCIe

0 to 10 MHz, system and bus activity dependent

USB

0 to 1 MHz, system and bus   activity dependent

DO   Sample Clock frequency


PCIe


Regenerate   from FIFO

0 to 10 MHz

Streaming   from memory

0 to 10 MHz, system and bus activity dependent

USB


Regenerate   from FIFO

0 to 10 MHz

Streaming   from memory

0 to 1 MHz, system and bus   activity dependent

Data   transfers


PCIe

DMA (scatter-gather), programmed I/O

USB

USB Signal Stream, 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 7. PFI <0..15>/P1/P2: IOH versus VOH

Figure 8. PFI <0..15>/P1/P2: IOL versus VOL

                              0                 0.2                0.4

General-Purpose Count

    0.6                0.8                1.0                1.2

VOL (V)

ers

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


PCIe

Any PFI, RTSI, analog trigger, many internal signals

USB

Any PFI, analog trigger, many internal signals

FIFO

127 samples per counter

Data   transfers


PCIe

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

USB

USB Signal Stream, 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 or RTSI terminal.

Phase-Locked Loop

Table 3. Reference Clock Locking Frequencies

Reference   Signal

PCIe Locking Input   Frequency

(MHz)

USB   Locking Input Frequency

(MHz)

RTSI <0..7>

10, 20

—

PFI <0..15>

10, 20

10

Output of PLL                                                   100 MHz Timebase; other signals derived from

100 MHz Timebase including 20 MHz and

100 kHz Timebases

External Digital Triggers

Source


PCIe

Any PFI, RTSI

USB

Any PFI

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


PCIe

RTSI <0..7>

USB

None

Output   destination


PCIe

RTSI <0..7>

USB

None

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


PCIe


Form   factor

x1 PCI Express, specification v1.1 compliant

Slot   compatibility

x1, x4, x8, and x16 PCI Express slots [2]

DMA   channels

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

USB


USB   compatibility

USB 2.0 Hi-Speed or full-speed[3]

USB   Signal Stream

8, can   be used for analog input, analog output, digital input, digital output,   counter/timer 0, counter/timer 1, counter/timer 2, counter/timer 3

Power Requirements

PCIe

With disk drive power connector installed

+3.3 V

1.6 W

+12 V

5.4 W

+5.0 V

15 W

USB


Power   supply requirements

11 to 30 VDC, 30 W, 2 positions 3.5 mm pitch pluggable screw   terminal with screw locks similar to Phoenix Contact MC 1,5/2-

STF-3,5 BK

Power   input mating connector

Phoenix Contact MC 1,5/2-GF-3,5 BK or equivalent

Caution NI USB-6351 devices must be powered with an NI offered AC adapter or a National Electric Code (NEC) Class 2 DC source that meets the power requirements for the device and has appropriate safety certification marks for country of use.

Current Limits

With disk drive power connector installed

+5 V terminal (connector 0)

1 A max[4]

+5 V terminal (connector 1)

1 A max4

P0/PFI/P1/P2   combined

1 A max

USB

+5 V   terminal

1 A max4

P0/PFI/P1/P2   and +5 V terminals combined

2 A max

Physical Characteristics

Printed   circuit board dimensions


PCIe

9.9 × 16.8 cm (3.9 × 6.6 in.) (half-length)

Enclosure   dimensions (includes connectors)


USB

26.4 × 17.3 × 3.6 cm (10.4 × 6.8 × 1.4 in.)

Weight


PCIe

161 g (5.6 oz)

USB

1.42 kg (3 lb 2 oz)

I/O   connector


PCIe

1 68-pin VHDCI

USB

64 screw terminals

Table 4. PCIe Mating Connectors

Manufacturer,   Part Number

Description

MOLEX 71430-0011

68-Pos   Right Angle Single Stack PCB-Mount VHDCI

(Receptacle)

MOLEX 74337-0016

68-Pos   Right Angle Dual Stack PCB-Mount VHDCI

(Receptacle)

MOLEX 71425-3001

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

PCIe disk drive power connector                         Standard ATX peripheral connector (not serial

ATA)

USB   screw terminal wiring

16-24 AWG

Calibration


Recommended   warm-up time

15 minutes

Calibration   interval

2 years

Maximum Working Voltage

Maximum working voltage refers to the signal voltage plus the common-mode voltage.

Channel to earth                                                 11 V, Measurement Category I

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

Environmental

Operating   temperature


PCIe

0 to 50 °C

USB

0 to 45 °C

Storage   temperature

-40 to 70 ºC

Operating   humidity

10 to 90% RH, noncondensing

Storage   humidity

5 to 95% RH, noncondensing

Pollution   Degree

2

Maximum   altitude

2,000 m

Indoor   use only.

Safety


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 61010-1

Note For UL and other safety certifications, refer to the product label or the Online Product Certification 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; Basic immunity

•         EN 55011 (CISPR 11): Group 1, Class A emissions

•         EN 55022 (CISPR 22): Class A emissions

•         EN 55024 (CISPR 24): Immunity

•         AS/NZS CISPR 11: Group 1, Class A emissions

•         AS/NZS CISPR 22: Class A emissions

•         FCC 47 CFR Part 15B: Class A emissions

•         ICES-001: Class A emissions

Note In the United States (per FCC 47 CFR), Class A equipment is intended for use in commercial, light-industrial, and heavy-industrial locations. In Europe, Canada, Australia and New Zealand (per CISPR 11) Class A equipment is intended for use only in heavy-industrial 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.

Note For EMC declarations and certifications, and additional information, refer to the Online Product Certification section.

This product meets the essential requirements of applicable European Directives, as follows:

•         2014/35/EU; Low-Voltage Directive (safety)

•         2014/30/EU; Electromagnetic Compatibility Directive (EMC)

Online Product Certification

Refer to the product Declaration of Conformity (DoC) for additional regulatory compliance information. To obtain product certifications and the DoC for this product, visit ni.com/ certification, search by model number or product line, and click the appropriate link in the Certification column.

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 Minimize Our Environmental Impact 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.

Waste Electrical and Electronic Equipment (WEEE)

  EU Customers 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）

中国客户 National Instruments 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 National Instruments 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.)

Device Pinouts

Figure 10. NI USB-6351 Pinout

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this manual was developed at private expense and is subject to the applicable limited rights and restricted data rights as set forth in FAR 52.227-14, DFAR 252.227-7014, and DFAR 252.227-7015.

© 2015—2016 National Instruments. All rights reserved.

374591D-01     Jun16


[1] Typical behavior. Time period may be longer due to host system USB performance. Time period will be longer during firmware updates.

[2] Some motherboards reserve the x16 slot for graphics use. For PCI Express guidelines, refer to ni.com/pciexpress.

[3] Operating on a full-speed bus results in lower performance, and you might not be able to achieve maximum sampling/update rates.

[4] Has a self-resetting fuse that opens when current exceeds this specification.