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ADC Timing Modes 2

Input Noise 4

3

280 nV

rms

1.84 V

μ

pk-pk

4

370 nV

rms

2.6 V

μ

pk-pk

5

750 nV

rms

6.3 V

μ

pk-pk

6

1.05 V

μ

rms

8.3 V

μ

pk-pk

7 (High Speed)

2.0 V

μ

rms

24 V

μ

pk-pk

Measurement Sensitivity 5

ADC Timing Modes 2 Type J, K, T, E

Type N

Type B

Type R, S

1 (High Res.)

≤ 0.01 °C

< 0.02 °C < 0.10 °C

< 0.08 °C

2

≤ 0.01 °C

< 0.02 °C < 0.10 °C

< 0.08 °C

3

< 0.02 °C

< 0.02 °C ≤ 0.13 °C ≤ 0.11 °C

4

< 0.02 °C

< 0.03 °C < 0.18 °C

≤ 0.14 °C

5

< 0.04 °C

< 0.06 °C < 0.35 °C

< 0.29 °C

6

< 0.06 °C

< 0.08 °C < 0.49 °C

< 0.40 °C

7 (High Speed)

< 0.11 °C

< 0.14 °C < 0.93 °C

< 0.77 °C

Input Stability

Typical

Max

Offset stability with autozero enabled

10 nV/°C

50 nV/°C

Offset stability with autozero disabled 0.3

°

μ V/ C 0.9

°

μ V/ C

Gain stability

4 ppm/°C

15 ppm/°C

Cold-Junction Compensation Accuracy

Typical

Max

23 °C ±5 °C 0 to 55 °C 23 °C ±5 °C 0 to 55 °C

PXIe-4353 CJC channel accuracy

0.02 °C

0.03 °C

0.03 °C

0.05 °C

Total CJC accuracy using TB-4353 6 0.22 °C

0.38 °C

0.33 °C

0.50 °C

Temperature Measurement Accuracy

The following thermocouple measurement tables show the accuracy for each thermocouple type under the following conditions:

The module is connected to a TB-4353.

Autozero is enabled.

Open thermocouple detection is disabled. 7

0 V common mode voltage.

The tables include all measurement errors of the module and the terminal block. The tables do not include the accuracy of the thermocouple itself.

Thermocouple Type J/N Measurement Accuracy (°C)

–100 °C 0 °C 100 °C 300 °C 500 °C 700 °C 900 °C 1100 °C 1400 °C

High Resolution Typical 23 °C ±5 °C 0.44

0.33 0.29

0.32

0.36

0.40

0.45

0.54

—

Max 23 °C ±5 °C

0.78

0.59 0.52

0.51

0.57

0.63

0.70

0.81

—

Max 0–55 °C

1.25

0.94 0.78

0.84

0.99

1.09

1.27

1.51

—

High Speed

Typical 23 °C ±5 °C 0.77

0.59 0.51

0.51

0.55

0.62

0.70

0.80

—

Max 23 °C ±5 °C

1.18

0.91 0.79

0.76

0.80

0.89

0.99

1.12

—

Max 0–55 °C

1.66

1.26 1.06

1.07

1.18

1.35

1.55

1.80

—

Thermocouple Type K Measurement Accuracy (°C)

–100 °C 0 °C 100 °C 300 °C 500 °C 700 °C 900 °C 1100 °C 1400 °C

High Resolution Typical 23 °C ±5 °C 0.42

0.29 0.26

0.36

0.35

0.45

0.56

0.64

0.86

Max 23 °C ±5 °C

0.70

0.49 0.46

0.58

0.59

0.70

0.85

0.97

1.26

Max 0–55 °C

1.14

0.79 0.71

0.92

1.02

1.24

1.50

1.76

2.29

High Speed

Typical 23 °C ±5 °C 0.65

0.46 0.43

0.55

0.56

0.67

0.82

0.93

1.22