NI-9202 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.

NI-9202 Pinout



Table 1. Signal Descriptions
Signal Description
AI+ Positive analog input signal connection
AI- Negative analog input signal connection
COM Common reference connection to isolated ground
NC No connection

NI-9202 Nomenclature

In this article, the NI-9202 with spring terminal and NI-9202 with DSUB are referred to inclusively as the NI-9202.

Input Characteristics

Number of channels

16 analog input channels

ADC resolution

24 bits

Type of ADC

Delta-Sigma with analog prefiltering

Sampling mode

Simultaneous

Internal master timebase (fM)

Frequency

12.8 MHz

Accuracy

±50 ppm maximum

Data rate range (fs)
Using internal master timebase

Minimum

10 S/s

Maximum

10 kS/s

Using external master timebase

Minimum

3.81 S/s

Maximum

10.273 kS/s

Data rate[1]1 The data rate must remain within the appropriate data rate range and

fMb
needs to stay within 1 MHz and 6.575 MHz.

fs=fMa×b×c×d 

Overvoltage protection[2]2 Up to 6 channels simultaneously

±30 V

Input resistance (AIx to COM)

>10 GΩ

Input voltage range (Differential)

Minimum

10.50 V

Typical

10.58 V

Scaling coefficients

10 kS/s, 5 kS/s

2,017,990 pV/LSB

60 S/s[3]3 When using the internal master timebase or an external master timebase of 12.8 MHz

1,356,632 pV/LSB

2 kS/s, 1 kS/s, 500 S/s, 250 S/s, 125 S/s, 50 S/s[3]

1,614,392 pV/LSB

400 S/s, 200 S/s, 100 S/s, 10 S/s[3]

1,291,513 pV/LSB

60 S/s[4]4 When using an external master timebase of 13.1072 MHz

2,273,791 pV/LSB

All other data rates

1,261,244 pV/LSB

Maximum input voltage (AIx to COM)

±10.5 V

Input delay [5] 5 Refer to the Input Delay section for the values of A, B, and C.

(A+B)fS⁢ +C

Settling time [5]

2(A+B)fS⁢ +C

Table 2. Input Delay
Variable Value
A 0.8 for fS = 10 to 60, 100, 125, 200, 250, 400, 500, 1000, 2000
1.4 for fS = 97.7 to 2083.3, 2500, 3125, 5000, 10000[6]6 Excludes sample rates in the 0.8 category
1.8 for fS = 2272.7 to 4166.7, 6250, 8333.3[7]7 Excludes sample rates in 1.4 category
2.6 for fS = 4545.5, 5555.6, 7142.9
B 0 for filter notch at fS
0.5 for filter notch at fS/2
1.5 for filter notch at fS/4
3.5 for filter notch at fS/8
7.5 for filter notch at fS/16
C 8.5 µs
Table 3. DC Accuracy
Measurement Conditions Percent of Reading[8]8 Includes the expected difference in measurement between using single-ended and differential sources due to finite CMRR (Gain Error) Percent of Range[9]9 Range equals 10.58 V (Offset Error)
Maximum (-40 °C to 70 °C) ±0.25% ±0.17%
Typical (23 °C, ±5 °C) ±0.06% ±0.04%

Non-linearity

5 ppm

Stability of Accuracy

Gain drift[8]

5.3 ppm/°C

Offset drift

34.5 μV/°C

Passband, -3 dB

Refer to the -3 dB graphs in the Passband section

Phase linearity (fin ≤ 4.9 kHz)

0.07° maximum

Channel-to-channel mismatch (fin ≤ 4.9 kHz)

Gain

0.2 dB maximum

Phase

0.24°/kHz maximum

Module-to-module mismatch (fin ≤ 4.9 kHz)

Phase

0.24°/kHz+360°fin/fM

Attenuation @ 2 x oversample rate (23° C)[10]10 The oversample rate is the timebase divided by Timebase Clock Divider and ADC Clock Divider in Table 1. At odd multiples of the oversample rate, the NI-9202 will have significantly higher rejection.

f s = 10000.0 S/s

95 dB @ 581.818 kHz

f s = 4545.5 S/s

85 dB @ 3.2 MHz

Table 4. Idle Channel Noise
fs (S/s) ADC Decimation Rate Filter Notch at fs (μVrms) Filter Notch at fs/2 (μVrms) Filter Notch at fs/4 (μVrms) Filter Notch at fs/8 (μVrms) Filter Notch at fs/16(μVrms)
10000.0 32 23.5 17.6 13.0 9.9 7.2
5000.0 64 16.8 12.7 9.5 7.3 5.4
6250.0 128 16.6 13.3 10.2 7.9 5.8
1562.5 256 9.7 7.5 5.8 4.6 3.5
781.3 512 7.2 5.6 4.4 3.6 2.8
390.6 1,024 5.5 4.3 3.5 2.9 2.4
Note The noise specifications assume the NI-9202 is using the internal master timebase frequency of 12.8 MHz.
Note The noise is dominated by the ADC Decimation Rate.
Figure 1. Idle Channel Noise vs Data Rate and Filter Settings.


Crosstalk (CH to CH)
NI-9202 with spring terminal

f in ≤ 100 Hz

100 dB

f in ≤ 1 kHz

80 dB

f in ≤ 3 kHz

70 dB

NI-9202 with DSUB

f in ≤ 100 Hz

105 dB

f in ≤ 1 kHz

85 dB

f in ≤ 3 kHz

75 dB

Common mode rejection ratio (CMRR) to COM

f in ≤ 60 Hz

72 dB typical, 67 dB minimum

Common mode rejection ratio (CMRR) to Earth Ground

f in ≤ 60 Hz

125 dB minimum

Normal mode rejection ratio (NMRR) using internal or external master timebase of 12.8 MHz

60 S/s, fin = 60 Hz ± 1 Hz

35 dB minimum

50 S/s, fin = 50 Hz ± 1 Hz

33 dB minimum

10 S/s, fin = 50 Hz/60 Hz ± 1 Hz

34 dB minimum

Normal mode rejection ratio (NMRR) using external master timebase of 13.1072 MHz

60 S/s, fin = 60 Hz ± 1 Hz

34 dB minimum

50 S/s, fin = 50 Hz ± 1 Hz

33 dB minimum

10 S/s, fin = 50 Hz/60 Hz ± 1 Hz

33 dB minimum

NI-9202 Filtering

The NI-9202 uses a combination of analog and digital filtering to provide an accurate representation of in-band signals while rejecting out-of-band signals. The filters discriminate between signals based on the frequency range, or bandwidth, of the signal.

The NI-9202 represents signals within the passband, as quantified primarily by passband flatness and phase linearity.

The NI-9202 has a comb frequency response, characterized by deep, evenly spaced notches and an overall roll-off towards higher frequencies. The NI-9202 provides five available filter options for every data rate. The different options provide a trade-off of noise rejection (refer to the Idle Channel Noise table) for filter settling time (refer to the Settling Time equation) and latency (refer to the Input Delay equation). To control the response of the programmable comb filter, you can select to have the first notch at 1, 1/2, 1/4, 1/8 or 1/16 of the sampling frequency. The following figures show the overall filter response with different filter settings.

Figure 1. Filter Response for Filter Decimation Rate 2


Figure 1. Filter Response for Filter Decimation Rate 4


Figure 1. Filter Response for Filter Decimation Rate 5


Figure 1. Filter Response for Filter Decimation Rate ≥ 8


NI-9202 Passband

The signals within the passband have frequency-dependent gain or attenuation. The small amount of variation in gain with respect to frequency is called the passband flatness. The programmable comb filters of the NI-9202 adjust the frequency range of the passband to match the data rate and filter setting. Therefore, the amount of gain or attenuation at a given frequency depends on the data rate and filter setting.

Figure 1. Typical Flatness for Filter Decimation Rate 2


Figure 1. Typical Flatness for Filter Decimation Rate 4


Figure 1. Typical Flatness for Filter Decimation Rate 5


Figure 1. Typical Flatness for Filter Decimation Rate ≥ 8


The NI-9202 also supports power line frequency rejection. The 60 S/s data rate rejects 60 Hz noise and all harmonics of 60 Hz. The 50 S/s data rate rejects 50 Hz noise and all harmonics. The 10 S/s data rate rejects 50 Hz and 60 Hz noise and all harmonics. The following figure shows the typical frequency response for these three data rates. Refer to Input Characteristics in the NI-9202 Specifications for the minimum NMRR.

Figure 1. Typical Frequency Response at 60 S/s, 50 S/s, and 10 S/s


The -3 dB bandwidth will also be a function of data rate and filter setting, as shown in the following figures.

Figure 1. Typical -3 dB Bandwidth/Data Rate vs Data Rate and Filter Settings


Figure 1. Typical -3 dB Bandwidth vs Data Rate and Filter Settings


NI-9202 Data Rates

The frequency of a master timebase (fM) controls the data rate (fs) of the NI-9202. The NI-9202 includes an internal master timebase with a frequency of 12.8 MHz. Using the internal master timebase of 12.8 MHz results in data rates of 10 kS/s, 8333.3 S/s, 7142.9 S/s, 6250 S/s, and so on down to 10 S/s, depending on the decimation rates and the values of the clock dividers. However, the data rate must remain within the appropriate data rate range. Power line frequency rejection is supported through the data rates of 60 S/s, 50 S/s and 10 S/s when using the internal master timebase or when using an external master timebase of 13.1072 MHz or 12.8 MHz.

The following equation provides the available data rates of the NI-9202:

fs=fMa×b×c×d 

where

  • a is the ADC Decimation Rate (32, 64, 128, 256, 512, 1024)
  • b is the Timebase Clock Divider (integer between 1 and 11)
  • c is the ADC Clock Divider (4 or 8)
  • d is the Filter Decimation Rate (2, 4, 5, 8, 25, 64, 71, 119, 125)
Note f M/b must be greater than or equal to 1 MHz and less than 6.575 MHz.

The following table lists available data rates with the internal master timebase.

Table 5. Available Data Rates with the Internal Master Timebase
f s (S/s) ADC Decimation Rate Timebase Clock Divider ADC Clock Divider Filter Decimation Rate
10000.0 32 2 4 5
8333.3 32 3 4 4
7142.9 32 7 4 2
6250.0 128 1 8 2
5555.6 32 9 4 2
5000.0 64 2 4 5
4545.5 32 11 4 2
4166.7 128 3 4 2
3571.4 32 7 4 4
3125.0 128 1 8 4
2777.8 32 9 4 4
2500.0 64 5 4 4
2272.7 32 11 4 4
2083.3 128 3 4 4
2000.0 32 2 4 25
1785.7 64 7 4 4
1562.5 256 1 8 4
1388.9 64 9 4 4
1250.0 128 5 4 4
1136.4 64 11 4 4
1041.7 256 3 4 4
1000.0 64 2 4 25
892.9 128 7 4 4
781.3 512 1 8 4
694.4 128 9 4 4
625.0 256 5 4 4
568.2 128 11 4 4
520.8 512 3 4 4
500.0 128 2 4 25
446.4 256 7 4 4
400.0 32 2 4 125
390.6 1024 1 8 4
347.2 256 9 4 4
312.5 512 5 4 4
284.1 256 11 4 4
260.4 1024 3 4 4
250.0 256 2 4 25
223.2 512 7 4 4
200.0 64 2 4 125
195.3 1024 4 4 4
142.0 512 11 4 4
125.0 512 2 4 25
100.0 128 2 4 125
97.7 1024 8 4 4
60.0[11]11 When using an external timebase of 13.1072 MHz, this data rate does not change with the ratio of the external to internal clocks. 64 or 256[12]12 When using an external master timebase of 13.1072 MHz. 7 or 3[12] 4 119 or 71[12]
50.0[11] 512 or 1024[12] 5 or 8[12] 4 25 or 8[12]
10.0[11] 512 or 1024[12] 5 4 125 or 64[12]

The NI-9202 can also accept an external master timebase or export its own master timebase. To synchronize the data rate of an NI-9202 with other modules that use master timebases to control sampling, all of the modules must share a single master timebase source. When using an external timebase with a frequency other than 12.8 MHz, the available data rates (with the exception of 60 S/s, 50 S/s and 10 S/s[11]) of the NI-9202 shift by the ratio of the external timebase frequency to the internal timebase frequency. Refer to the software help for information about configuring the master timebase source for the NI-9202.

Note The cRIO-9151R Series Expansion chassis does not support sharing timebases between modules.

Safety Voltages

Connect only voltages that are within the following limits:

Maximum voltage[13]13 The maximum voltage that can be applied or output between AI and COM without creating a safety hazard.

Channel-to-COM

±30 V DC maximum, up to 6 channels at a time

NI-9202 with Spring Terminal Isolation Voltages

Channel-to-channel

None

Channel-to-earth ground

Continuous

250 V RMS, Measurement Category II

Withstand (up to 5,000 m)

3,000 V RMS, verified by a 5 s dielectric withstand test

Measurement Category II

Caution Do not connect the product to signals or use for measurements within Measurement Categories III or IV.
Attention Ne pas connecter le produit à des signaux dans les catégories de mesure III ou IV et ne pas l'utiliser pour effectuer des mesures dans ces catégories.

Measurement Category II is for measurements performed on circuits directly connected to the electrical distribution system. This category refers to local-level electrical distribution, such as that provided by a standard wall outlet, for example, 115 V for U.S. or 230 V for Europe.

NI-9202 with DSUB Isolation Voltages

Channel-to-channel

None

Channel-to-earth ground

Continuous

60 V DC, Measurement Category I

Withstand

up to 2,000 m

1,000 V RMS, verified by a 5 s dielectric withstand test

up to 5,000 m

500 V RMS

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

5,000 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

0.95 W maximum

Sleep mode

53 µW maximum

Thermal dissipation

Active mode

1.30 W maximum

Sleep mode

0.64 W maximum

Physical Characteristics

Spring terminal wiring

Gauge

0.14 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 spring terminal using a 2-wire ferrule

Ferrules

Single ferrule, uninsulated

0.14 mm2 to 1.5 mm2 (26 AWG to 16 AWG)

10 mm barrel length

Single ferrule, insulated

0.14 mm2 to 1.0 mm2 (26 AWG to 18 AWG)

12 mm barrel length

Two-wire ferrule, insulated

2× 0.34 mm2 (2× 22 AWG)

12 mm barrel length

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

NI-9202 with spring terminal

138.6 g (4.9 oz)

NI-9202 with DSUB

149.0 g (5.3 oz)

1 The data rate must remain within the appropriate data rate range and

fMb
needs to stay within 1 MHz and 6.575 MHz.

2 Up to 6 channels simultaneously

3 When using the internal master timebase or an external master timebase of 12.8 MHz

4 When using an external master timebase of 13.1072 MHz

5 Refer to the Input Delay section for the values of A, B, and C.

6 Excludes sample rates in the 0.8 category

7 Excludes sample rates in 1.4 category

8 Includes the expected difference in measurement between using single-ended and differential sources due to finite CMRR

9 Range equals 10.58 V

10 The oversample rate is the timebase divided by Timebase Clock Divider and ADC Clock Divider in Table 1. At odd multiples of the oversample rate, the NI-9202 will have significantly higher rejection.

11 When using an external timebase of 13.1072 MHz, this data rate does not change with the ratio of the external to internal clocks.

12 When using an external master timebase of 13.1072 MHz.

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