NI-9206 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 the range -40 °C to 70 °C unless otherwise noted. All voltages are relative to COM unless otherwise noted.

NI-9206 Pinout



Table 1. Signal Descriptions
Signal Description
AI Analog input signal connection
AISENSE Reference connection for NRSE measurements
COM Common reference connection to isolated ground
DO Digital output signal connection
PFI Programmable function interface, digital input signal connection

NI-9206 Input/Output Characteristics

MTBF

765,695 hours at 25 °C; Bellcore Issue 6, Method 1, Case 3, Limited Part Stress Method

Analog Input Characteristics

Number of channels

16 differential/32 single-ended channels

ADC resolution

16 bits

DNL

No missing codes guaranteed

Conversion time (maximum sampling rate)

CompactRIO & CompactDAQ chassis

4.00 μs (250 kS/s)

R Series Expansion chassis

4.50 μs (222 kS/s)

Input coupling

DC

Nominal input ranges

±10 V, ±5 V, ±1 V, ±0.2 V

Minimum overrange, ±10 V range

4%

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

Each channel must remain within ±10.4 V of COM

Input impedance (AI-to-COM)

Powered on

>10 GΩ in parallel with 100 pF

Powered off/overload

4.7 kΩ minimum

Input bias current

±100 pA

Crosstalk, at 100 kHz

Adjacent channels

-65 dB

Non-adjacent channels

-70 dB

Analog bandwidth

370 kHz

Overvoltage protection

AI channel, 0 to 31

±30 V, one channel only

AISENSE

±30 V

Settling time for multichannel measurements, accuracy, all ranges

±120 ppm of full-scale step, ±8 LSB

4 μs convert interval

±30 ppm of full-scale step, ±2 LSB

8 μs convert interval

Analog triggers

Number of triggers

1

Resolution

10 bits, 1 in 1,024

Bandwidth, -3 dB

370 kHz

Accuracy

±1% of full scale

Scaling coefficients

±10 V range

328 μV/LSB

±5 V range

164.2 μV/LSB

±1 V range

32.8 μV/LSB

±0.2 V range

6.57 μV/LSB

CMRR, DC to 60 Hz

100 dB

Figure 1. CMRR, AI+ to AI-


Analog Input Absolute Accuracy

The following values are based on calibrated scaling coefficients, which are stored in the onboard EEPROM.

Table 2. Absolute accuracy
Range Accuracy at Full Scale[1]1 Absolute accuracy values at full scale on the analog input channels assume the device is operating within 70 °C of the last external calibration and are valid for averaging 100 samples immediately following self-calibration. Random Noise[2]2 Differential mode, σ Sensitivity[3]3 Sensitivity is a function of noise and indicates the smallest voltage change that can be detected.
±10 V 6,230 μV 237 µV RMS 96.0 μV
±5 V 3,230 μV 121 µV RMS 46.4 μV
±1 V 692 μV 29 µV RMS 10.4 μV
±0.2 V 175 μV 15 µV RMS 4.0 μV
Residual gain error

±10 V range

115 ppm of reading

±5 V range

135 ppm of reading

±1 V range

155 ppm of reading

±0.2 V range

215 ppm of reading

Gain tempco

11 ppm/°C

Reference tempco

5 ppm/°C

Residual offset error

±10 V range

20 ppm of range

±5 V range

20 ppm of range

±1 V range

25 ppm of range

±0.2 V range

40 ppm of range

Offset tempco

±10 V range

44 ppm of range/°C

±5 V range

47 ppm of range/°C

±1 V range

66 ppm of range/°C

±0.2 V range

162 ppm of range/°C

INL error

76 ppm of range

Analog Input Accuracy Formulas

Absolute Accuracy = Reading * Gain Error + Range * Offset Error + Noise Uncertainty

  • where
  • Gain Error = Residual Gain Error + Gain Tempco * Temp Change from Last Internal Cal + Reference Tempco * Temp Change from Last External Cal
  • Offset Error = Residual Offset Error + Offset Tempco * Temp Change from Last Internal Cal + INL Error
  • Noise Uncertainty = (Random Noise * 3) / √100 for a coverage factor of 3 σ and averaging 100 points

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

  • Temp Change from Last External Cal = 70 °C
  • Temp Change from Last Internal Cal = 1 °C
  • Number of Readings = 100
  • Coverage Factor = 3 σ

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

  • Gain Error = 115 ppm + 11 ppm * 1 + 5 ppm * 70
  • Gain Error = 476 ppm
  • Offset Error = 20 ppm + 44 ppm * 1 + 76 ppm
  • Offset Error = 140 ppm
  • Noise Uncertainty = (237 μV * 3) / √100
  • Noise Uncertainty = 72 μV
  • Absolute Accuracy = 10 V * 476 ppm + 10 V * 140 ppm + 72 μV
  • Absolute Accuracy = 6,231 μV, rounds to 6,230 μV

Digital Characteristics

Number of channels

1 digital input channel

Overvoltage protection

±30 V

Digital logic levels
Input high, VIH

Minimum

2.0 V

Maximum

3.3 V

Input low, VIL

Minimum

0 V

Maximum

0.34 V

External digital triggers

Source

PFI0

Delay

100 ns maximum

Safety Voltages

Connect only voltages that are within the following limits:

Maximum voltage[4]4 The maximum voltage that can be applied or output between AI and COM without creating a safety hazard.

AI, PFI0, and D0 to COM

±30 V DC

Isolation Voltages

Channel-to-channel

None

Channel-to-earth ground
Continuous

U.S. (UL 61010-1)

600 V DC, Measurement Category I

Europe (IEC 61010-1)

400 V DC, Measurement Category I

Withstand

2,500 V pk, verified by a 5 s dielectric withstand test

Measurement Category I

Warning Do not connect the product to signals or use for measurements within Measurement Categories II, III, or IV, or for measurements on MAINs circuits or on circuits derived from Overvoltage Category II, III, or IV which may have transient overvoltages above what the product can withstand. The product must not be connected to circuits that have a maximum voltage above the continuous working voltage, relative to earth or to other channels, or this could damage and defeat the insulation. The product can only withstand transients up to the transient overvoltage rating without breakdown or damage to the insulation. An analysis of the working voltages, loop impedances, temporary overvoltages, and transient overvoltages in the system must be conducted prior to making measurements.
Mise en garde Ne pas connecter le produit à des signaux dans les catégories de mesure II, III ou IV et ne pas l'utiliser pour des mesures dans ces catégories, ou des mesures sur secteur ou sur des circuits dérivés de surtensions de catégorie II, III ou IV pouvant présenter des surtensions transitoires supérieures à ce que le produit peut supporter. Le produit ne doit pas être raccordé à des circuits ayant une tension maximale supérieure à la tension de fonctionnement continu, par rapport à la terre ou à d'autres voies, sous peine d'endommager et de compromettre l'isolation. Le produit peut tomber en panne et son isolation risque d'être endommagée si les tensions transitoires dépassent la surtension transitoire nominale. Une analyse des tensions de fonctionnement, des impédances de boucle, des surtensions temporaires et des surtensions transitoires dans le système doit être effectuée avant de procéder à des mesures.

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

Operating

-40 °C to 70 °C

Storage

-40 °C to 85 °C

Humidity

Operating

10% RH to 90% RH, noncondensing

Storage

5% RH to 95% RH, noncondensing

Ingress protection

IP40

Pollution Degree

2

Maximum altitude

2,000 m

Shock and Vibration
Operating vibration

Random

5 g RMS, 10 Hz to 500 Hz

Sinusoidal

5 g, 10 Hz to 500 Hz

Operating shock

30 g, 11 ms half sine; 50 g, 3 ms half sine; 18 shocks at 6 orientations

To meet these shock and vibration specifications, you must panel mount the system.

Power Requirements

Power consumption from chassis

Active mode

625 mW maximum

Sleep mode

15 mW

Thermal dissipation (at 70 °C)

Active mode

625 mW maximum

Sleep mode

15 mW

Physical Characteristics

Spring-terminal wiring

Gauge

0.13 mm2 to 1.5 mm2 (26 AWG to 16 AWG) copper conductor wire

Wire strip length

10 mm (0.394 in.) of insulation stripped from the end

Temperature rating

90 °C, minimum

Wires per spring terminal

One wire per spring terminal; two wires per screw terminal using a 2-wire ferrule

Ferrules

0.14 mm2 to 1.5 mm2

Connector securement

Securement type

Screw flanges provided

Torque for screw flanges

0.2 N · m (1.80 lb · in.)

Dimensions

Visit ni.com/dimensions and search by module number.

Weight

163 g (5.7 oz)

Calibration

You can obtain the calibration certificate and information about calibration services for the NI-9206 at ni.com/calibration.

Calibration interval

2 years

1 Absolute accuracy values at full scale on the analog input channels assume the device is operating within 70 °C of the last external calibration and are valid for averaging 100 samples immediately following self-calibration.

2 Differential mode

3 Sensitivity is a function of noise and indicates the smallest voltage change that can be detected.

4 The maximum voltage that can be applied or output between AI and COM without creating a safety hazard.