NI 6323 Device Specifications - National Instruments

1 Device SPECIFICATIONSNI 6323X Series Data Acquisition: 250 kS/s, 32 AI, 48 DIO, 4 AOThe following Specifications are typical at 25 C, unless otherwise noted. For moreinformation about the NI 6323, refer to the X Series User Guide available from InputNumber of channels16 differential or 32 single endedADC resolution16 bitsDNLNo missing codes guaranteedINLR efer to the AI Absolute Accuracy rateSingle channel maximum250 kS/sMultichannel maximum (aggregate)250 kS/sMinimumNo minimumTiming resolution10 nsTiming accuracy50 ppm of sample rateInput couplingDCInput range V, 1 V, 5 V, 10 VMaximum working voltage for analoginputs (signal + common mode)

2 11 V of AI GNDCMRR (DC to 60 Hz)100 dBInput impedanceDevice onAI+ to AI GND>10 G in parallel with 100 pFAI- to AI GND>10 G in parallel with 100 pFDevice offAI+ to AI GND1,200 AI- to AI GND1,200 Input bias current 100 pACrosstalk (at 100 kHz)Adjacent channels-75 dBNon-adjacent channels-90 dBSmall signal bandwidth (-3 dB)700 kHzInput FIFO size4,095 samplesScan list memory4,095 entriesData transfersDMA (scatter-gather), programmed I/OOvervoltage protection for all analog input and sense channelsDevice on 25 V for up to two AI pinsDevice off 15 V for up to two AI pinsInput current during overvoltage condition 20 mA max/AI pinSettling Time for Multichannel MeasurementsAccuracy, full-scale step, all ranges 90 ppm of step ( 6 LSB)4 s convert interval 30 ppm of step ( 2 LSB)5 s convert interval 15 ppm of step ( 1 LSB)7 s convert interval2 | | NI 6323 SpecificationsTypical Performance GraphFigure 1.

3 Settling Error versus Time for Different Source ImpedancesError (ppm of Step Size)1001001,000110 Time ( s)10,00010 100 1 k 2 k 5 k 10 k AI Absolute AccuracyTable 1. AI Absolute AccuracyNominalRangePositiveFull ScaleNominalRangeNegativeFull ScaleResidualGain Error(ppm ofReading)ResidualOffsetError (ppmof Range)OffsetTempco(ppm ofRange/ C)RandomNoise, ( Vrms)AbsoluteAccuracy atFull Scale( V) 10-106513242292,2205-57213251181, 6323 Specifications | National Instruments | 3 For more information about absolute accuracy at full scale, refer to the AI Absolute AccuracyExample ppm/ CReference tempco5 ppm/ CINL error60 ppm of rangeNote Accuracies listed are valid for up to two years from the Device Absolute Accuracy EquationAbsoluteAccuracy = Reading (GainError) + Range (OffsetError)

4 + NoiseUncertaintyGainError = ResidualGainError + GainTempco (TempChangeFromLastInternalCal) +ReferenceTempco (TempChangeFromLastExternalCal)OffsetErr or = ResidualOffsetError + OffsetTempco (TempChangeFromLastInternalCal)+ INLE rrorNoiseUncertainty = RandomNoise 310,000 for a coverage factor of 3 and averaging10,000 Absolute Accuracy ExampleAbsolute accuracy at full scale on the analog input channels is determined using the followingassumptions: TempChangeFromLastExternalCal = 10 C TempChangeFromLastInternalCal = 1 C number_of_readings = 10,000 Coveragefactor = 3 For example, on the 10 V range, the absolute accuracy at full scale is as follows.

5 GainError = 65 ppm + ppm 1 + 5 ppm 10 = 122 ppmOffsetError = 13 ppm + 24 ppm 1 + 60 ppm = 97 ppmNoiseUncertainty = 229 310,000 = VAbsoluteAccuracy = 10 V (GainError) + 10 V (OffsetError) + NoiseUncertainty =2,220 VAnalog OutputNumber of channels4 DAC resolution16 bitsDNL 1 LSBM onotonicity16 bit guaranteed4 | | NI 6323 SpecificationsMaximum update rate1 channel900 kS/s2 channels840 kS/s per channel3 channels775 kS/s per channel4 channels719 kS/s per channelTiming accuracy50 ppm of sample rateTiming resolution10 nsOutput range 10 VOutput couplingDCOutput Output current drive 5 mAOverdrive protection 15 VOverdrive current15 mAPower-on state 20 mVPower-on/off glitch2 V for 500 msOutput FIFO size8.

6 191 samples shared among channels usedData transfersDMA (scatter-gather), programmed I/OAO waveform modesNon-periodic waveform, periodic waveformregeneration mode from onboard FIFO,periodic waveform regeneration from hostbuffer including dynamic updateSettling time, full-scale step,15 ppm (1 LSB)6 sSlew rate15 V/ sGlitch energyMagnitude100 sAO Absolute AccuracyAbsolute accuracy at full-scale numbers is valid immediately following self calibration andassumes the Device is operating within 10 C of the last external 6323 Specifications | National Instruments | 5 Table 2.

7 AO Absolute AccuracyNominalRangePositiveFullScaleNom inalRangeNegativeFullScaleResidualGainEr ror(ppm ofReading)GainTempco(ppm/ C)ReferenceTempco(ppm/ C)ResidualOffsetError(ppm ofRange)OffsetTempco(ppm ofRange/ C)INLE rror(ppmofRange)AbsoluteAccuracyat FullScale( V) ,271 Note Accuracies listed are valid for up to two years from the Device Absolute Accuracy EquationAbsoluteAccuracy = OutputValue (GainError) + Range (OffsetError)GainError = ResidualGainError + GainTempco (TempChangeFromLastInternalCal) +ReferenceTempco (TempChangeFromLastExternalCal)OffsetErr or = ResidualOffsetError + OffsetTempco (TempChangeFromLastInternalCal)+ INLE rrorDigital I/O/PFIS tatic CharacteristicsNumber of channels48 total, 32 (P0.)

8 < >),16 (PFI < >/P1, PFI < >/P2)Ground referenceD GNDD irection controlEach terminal individually programmable asinput or outputPull-down resistor50 k typical, 20 k minimumInput voltage protection 20 V on up to two pinsCaution Stresses beyond those listed under the Input voltage protectionspecification may cause permanent damage to the Characteristics (Port 0 Only)Terminals usedPort 0 (P0.< >)Port/sample sizeUp to 32 bits6 | | NI 6323 SpecificationsWaveform generation (DO) FIFO2,047 samplesWaveform acquisition (DI) FIFO255 samplesDO or DI Sample Clock frequency0 to 1 MHz, system and bus activity dependentData transfersDMA (scatter-gather)

9 , programmed I/ODigital line filter settings160 ns, s, ms, disablePFI/Port 1/Port 2 FunctionalityFunctionalityStatic digital input, static digital output, timinginput, timing outputTiming output sourcesMany AI, AO, counter, DI, DO timing signalsDebounce filter settings90 ns, s, ms, custom interval,disable; programmable high and lowtransitions; selectable per inputRecommended Operating ConditionsInput high voltage (VIH) VInput low voltage (VIL)Minimum0 VOutput high current (IOH)P0.< >-24 mA maximumPFI < >/P1/P2-16 mA maximumOutput low current (IOL)P0.

10 < >24 mA maximumPFI < >/P1/P216 mA maximumDigital I/O CharacteristicsPositive-going threshold (VT+) V maximumNegative-going threshold (VT-) V minimumDelta VT hysteresis (VT+ - VT-) V minimumIIL input low current (VIN = 0 V)-10 A maximumIIH input high current (VIN = 5 V)250 A maximumNI 6323 Specifications | National Instruments | 7 Figure 2. P0.< >: IOH versus VOHIOH (mA) 30 5 10 15 20 25 35 40 45 VOH (V)0 5055 C; Vdd = V25 C; Vdd = V0 C; Vdd = V62345 Figure 3. P0.< >: IOL versus (mA) (V)4000 C; Vdd = V25 C; Vdd = V55 C; Vdd = V8 | | NI 6323 SpecificationsFigure 4.