PCIe-6346 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.

Conditions

Specifications are valid for 25 °C 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 AIGND.

Number of channels

8 differential

ADC resolution

16 bits

DNL

No missing codes, warranted

INL

Refer to the AI Absolute Accuracy section.

Sample rate (simultaneous sampling on all channels sampled)

Maximum

500 kS/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 (AI±)

Ranges ±10 V, ±5 V

±11 V, Measurement Category I

Ranges ±2 V, ±1 V

±9 V, Measurement Category I

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

CMRR (at 60 Hz)

80 dB

Bandwidth (small signal)

2.0 MHz at ±1 V

2.9 MHz at other ranges

Input impedance
Device on

AI+ to AI GND

>1 GΩ in parallel with 18 pF

AI- to AI GND

>1 GΩ in parallel with 18 pF

Device off

AI+ to AI GND

2.37 kΩ

AI- to AI GND

2.37 kΩ

Input bias current

±6 nA

±90 nA, maximum over full temperature range

Crosstalk (at 100 kHz)

-80 dB

Input FIFO size

4,095 samples shared among channels used

Data transfers

DMA (scatter-gather), programmed I/O

Overvoltage protection for AI<0..7>

Device on

±30 V

Device off

±15 V

Input current during overvoltage conditions

±6.3 mA maximum/AI pin

Maximum AI channels in overvoltage

4

Notice Exceeding overvoltage specifications may result in data corruption on non-overvoltaged channels.

Analog Triggers

Number of triggers

1

Source

AI <0..7>, APFI 0

Functions

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

Source level

AI <0..7>

±Full scale

APFI 0

±10 V

Resolution

16 bits

Modes

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

Bandwidth (large signal, to -3 dB)

AI <0..7>

600 kHz

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

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 -10 115 2 265 3,225
5 -5 115 2 148 1,613
2 -2 117 2 74 650
1 -1 124 3 50 333
Note For more information about absolute accuracy at full scale, refer to the AI Absolute Accuracy Example section.

Gain tempco

16.7 ppm/°C

Reference tempco

5 ppm/°C

Residual offset error

12 ppm of range

INL error

126 ppm of range

Note Accuracies listed are warranted for up to one year from the device external calibration when the device is within 10 °C of the external calibration temperature and 1 °C of the last self calibration, when averaging 10,000 DC samples. Other accuracies may be calculated for different temperatures and sample sizes using the given equations.

AI Absolute Accuracy Equation

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

  • GainError = ResidualGainError + GainTempco · (TempChangeFromLastInternalCal) + ReferenceTempco · (TempChangeFromLastExternalCal)
  • OffsetError = ResidualOffsetError + OffsetTempco · (TempChangeFromLastInternalCal) + INLError
  • NoiseUncertainty =
    RandomNoise310,000
    for a coverage factor of 3 σ and averaging 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 = 115 ppm + 16.7 ppm · 1 + 5 ppm · 10 = 181.7 ppm
  • OffsetError = 12 ppm + 2 ppm ·1 + 126 ppm = 140 ppm
  • Noise Uncertainty =
    265μV310,000
    = 8 µV
  • AbsoluteAccuracy = 10 V · (GainError) + 10 V · (OffsetError) + NoiseUncertainty = 3225 µV

Analog Output

Number of channels

2

DAC resolution

16 bits

DNL

±1 LSB, maximum

Monotonicity

16 bit guaranteed

Accuracy

Refer to the AO Absolute Accuracy section.

Maximum update rate (simultaneous)

1 channel

900 kS/s

2 channels

840 kS/s

Minimum update rate

No minimum

Timing accuracy

50 ppm of sample rate

Timing resolution

10 ns

Output range

±10 V

Output coupling

DC

Output impedance

0.2 Ω

Output current drive

±5 mA

Overdrive protection

±15 V

Overdrive current

15 mA

Power-on state

±20 mV

Power-on/off glitch

2 V peak for 500 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)

6 µs

Slew rate

15 V/µs

Glitch energy at midscale transition

100 mV · 2.6 µs

AO Absolute Accuracy

Accuracies listed are warranted for up to one year from the device external calibration when the device is within 10 °C of the external calibration temperature and 1 °C of the last self 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 -10 130 11.3 5 52 4.8 128 3,761

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

Notice 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 1 MHz, system and bus activity dependent

DO Sample Clock frequency

Regenerate from FIFO

0 to 1 MHz

Streaming from memory

0 to 1 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 1. P0.<0..7>: IOH versus VOH

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Figure 2. P0.<0..7>: IOL versus VOL

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

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Figure 4. PFI <0..15>/P1/P2: IOL versus VOL

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General-Purpose Counters

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 triggers

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 or RTSI terminal.

Phase-Locked Loop (PLL)

Number of PLLs

1

Table 3. Reference Clock Locking Frequencies
Reference Signal PCI Express Locking Input Frequency (MHz)
RTSI <0..7> 10, 20
PFI <0..15> 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>

Note All instances of RTSI in this document refer to 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[1]

x4, x8, and x16 PCI Express or PCI Express hybrid slots

DMA channels

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

Caution The protection provided by the PCIe-6346 can be impaired if it is used in a manner not described in the user documentation.
Attention La protection apportée par le PCIe-6346 risque d'être endommagée s'il est utilisé d'une autre façon que celle décrite dans la documentation utilisateur.

+3.3 V

2.1 W

+12 V

17.1 W

Current Limits

Notice Exceeding the current limits may cause unpredictable device behavior.

+5 V terminal (connector 0)

1 A, maximum

Note Connector 0 has a self-resetting fuse that opens when current exceeds this specification.

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

1.2 A, maximum

Physical Characteristics

Printed circuit board dimensions

16.8 cm × 11.1 cm (6.60 × 4.38 in.)

PCI Express mechanical form factor

Standard height, half length, single slot

Integrated air mover (fan)

No

Weight

100 g (3.6 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-*)

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

1 year

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 connect the PCIe-6346 to signals or use for measurements within Measurement Categories II, III, or IV.
Attention Ne connectez pas le PCIe-6346 à des signaux et ne l'utilisez pas pour effectuer des mesures dans les catégories de mesure II, III ou IV.

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.

Note Measurement Categories CAT I and CAT O are equivalent. These test and measurement circuits are for other circuits not intended for direct connection to the MAINS building installations of Measurement Categories CAT II, CAT III, or CAT IV.

Environmental Characteristics

Temperature and Humidity

Temperature

Operating (local operational ambient environment[2])

0 °C to 50 °C

Storage

-40 °C to 70 °C

Humidity

Operating

10% to 90% RH, noncondensing

Storage

5% to 95% RH, noncondensing

System slot airflow

0.4 m/s (80 LFM)

Pollution Degree

2

Maximum altitude

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

Shock and Vibration

Random vibration

Operating

5 Hz to 500 Hz, 0.3 g RMS

Non-operating

5 Hz to 500 Hz, 2.4 g RMS

Operating shock

30 g, half-sine, 11 ms pulse

PCIe-6346 Device Pinout

Figure 5. PCIe-6346 Pinout

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1 Some motherboard reserve the x16 slot for graphics use. For PCI Express guidelines, refer to ni.com/pciexpress.

2 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.