Accuracy, Transfer characteristics, Accuracy transfer characteristics – National Instruments Isolated Analog Input Device NI PXI-4224 User Manual

Page 51

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Appendix A

Specifications for

NI PXI-4224 User Manual

A-2

ni.com

Input coupling.........................................DC

Bandwidth, –3 dB ...................................15 kHz

Slew rate .................................................2 V/

μs typical

Input impedance

Powered on ......................................100 M

Ω parallel 100 pF

Powered off .....................................30 k

Ω

Input bias current ....................................100 pA

CMRR

Balanced ..........................................120 dB at DC to 60 Hz

10 k

Ω imbalanced............................85 dB at DC to 60 Hz;

65 dB at 60 Hz to 10 kHz

Crosstalk at 1 kHz

Adjacent channels............................–75 dB

All other channels............................–90 dB

Accuracy

Transfer Characteristics

Nonlinearity ............................................0.02% FSR

DNL ........................................................±0.5 LSB typ, ±1 LSB max

No missing codes....................................16 bits, guaranteed

Nominal

Range

(V)

% of

Reading

1 Year

Offset

(

μV)

Noise + Quantization

(

μV)

Temperature Drift

Absolute

Accuracy

at Full

Scale
(mV)

Single

Pt.

Averaged

Gain

(%/°C)

Offset

(

μV/°C)

±10 V

0.11

±1730

±6317

±200

0.0025

230

12.6

±1 V

0.12

±176

±632

±20.0

0.0025

26

1.4

Note: Accuracies are valid for measurements following an internal calibration and with autozero enabled, and are listed for
operational temperatures within ±1 °C of the internal calibration temperature and ±10 °C of 23 °C. Averaged numbers
assume 1,000 single-channel readings.

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