USB-6212 Specifications - National Instruments

1 SPECIFICATIONSUSB-621216 AI (16-Bit, 400 kS/s), 2 AO (250 kS/s), Up to 32 DIO USBM ultifunction I/O DeviceThese Specifications apply to the USB-6212 BNC, USB-6212 Mass Termination, andUSB-6212 Spring Specifications describe the performance of a model under stated operatingconditions and are covered by the model following characteristic Specifications describe values that are relevant to the use of themodel 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 are Typical unless otherwise are valid at 25 C unless otherwise InputNumber of channels8 differential or 16 single endedADC resolution16 bitsDNLNo missing codes guaranteedINLR efer to the AI Absolute Accuracy sectionSample rateSingle channel maximum400 kS/sMultichannel maximum (aggregate)400 kS/sMinimum0 S/sTiming resolution50 nsTiming accuracy50 ppm of sample rateInput couplingDCInput range V, 1 V, 5 V, 10 VMaximum working voltage for analoginputs (signal + common mode) 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)

2 Adjacent channels-75 dBNon-adjacent channels-90 dBSmall signal bandwidth (-3 dB) MHzInput FIFO size4,095 samplesScan list memory4,095 entriesData transfersUSB Signal Stream, programmed I/OOvervoltage protection for all analog input and sense channelsDevice on 30 V for up to two AI pinsDevice off 20 V for up to two AI pinsInput current during overvoltage condition 20 mA maximum/AI pinSettling Time for Multichannel MeasurementsAccuracy, full-scale step, all ranges 90 ppm of step ( 6 LSB) s convert interval 30 ppm of step ( 2 LSB) s convert interval 15 ppm of step ( 1 LSB) s convert interval2 | | USB-6212 SpecificationsTypical Performance GraphsFigure 1. Settling Error versus Time for Different Source Impedances1101001 k10 k110100 Time ( s)Error (ppm of Step Size)<1 k 2 k 5 k 10 k Figure 2. AI CMRR406080100120601001 k10 k100 kFrequency (Hz)CMRR (dB)140AI Absolute Accuracy (Warranted)Note Accuracies listed are valid for up to one year from the device The input/output channels of this device are not protected for electromagneticinterference due to functional reasons.

3 As a result, this device may experienceUSB-6212 Specifications | National Instruments | 3reduced measurement accuracy or other temporary performance degradation whenconnected cables are routed in an environment with radiated or conducted radiofrequency electromagnetic interference. To ensure that this device functions withinspecifications in its operational electromagnetic environment and to limit radiatedemissions, care should be taken in the selection, design, and installation ofmeasurement probes and 1. AI Absolute AccuracyNominalRangePositiveFullScaleNom inalRangeNegativeFullScaleResidualGainEr ror(ppm ofReading)ResidualOffsetError(ppm ofRange)OffsetTempco(ppm ofRange/ C)RandomNoise, ( Vrms)AbsoluteAccuracyat FullScale( V)Sensitivity( V) 10-107520342952, , Sensitivity is the smallest voltage change that can be detected. It is a functionof ppm/ CReference tempco5 ppm/ CINL error76 ppm of rangeAI Absolute Accuracy EquationAbsoluteAccuracy = Reading (GainError) + Range (OffsetError) + NoiseUncertaintyGainError = ResidualAIGainError + GainTempco (TempChangeFromLastInternalCal)+ ReferenceTempco (TempChangeFromLastExternalCal)OffsetErr or = ResidualAIOffsetError + OffsetTempco (TempChangeFromLastInternalCal) + INLE rrorNoiseUncertainty = RandomNoise 3100 for a coverage factor of 3 and averaging100 Absolute Accuracy ExampleAbsolute accuracy at full scale on the analog input channels is determined using the followingassumptions: TempChangeFromLastExternalCal = 10 C TempChangeFromLastInternalCal = 1 C4 | | USB-6212 Specifications number_of_readings = 100 CoverageFactor = 3 For example, on the 10 V range, the absolute accuracy at full scale is as follows.

4 GainError = 75 ppm + ppm 1 + 5 ppm 10 = 132 ppmOffsetError = 20 ppm + 34 ppm 1 + 76 ppm = 130 ppmNoiseUncertainty = 295 3100 = VAbsoluteAccuracy = 10 V (GainError) + 10 V (OffsetError) + NoiseUncertainty =2,710 VAnalog OutputNumber of channels2 DAC resolution16 bitsDNL 1 LSBM onotonicity16 bit guaranteedMaximum update rate1 channel250 kS/s2 channels250 kS/s per channelTiming accuracy50 ppm of sample rateTiming resolution50 nsOutput range 10 VOutput couplingDCOutput Output current drive 2 mAOverdrive protection 30 VOverdrive mAPower-on state 20 mVPower-on glitch 1 V for 200 msOutput FIFO size8,191 samples shared among channels usedData transfersUSB Signal Stream, programmed I/OAO waveform modesNon-periodic waveform, periodic waveformregeneration mode from onboard FIFO,periodic waveform regeneration from hostbuffer including dynamic updateUSB-6212 Specifications | National Instruments | 5 Settling time, full-scale step,15 ppm (1 LSB)32 sSlew rate5 V/ sGlitch energyMagnitude100 sAO Absolute Accuracy (Warranted)

5 Absolute accuracy at full-scale numbers is valid immediately following internal calibrationand assumes the device is operating within 10 C of the last external Accuracies listed are valid for up to one year from the device The input/output channels of this device are not protected for electromagneticinterference due to functional reasons. As a result, this device may experiencereduced measurement accuracy or other temporary performance degradation whenconnected cables are routed in an environment with radiated or conducted radiofrequency electromagnetic interference. To ensure that this device functions withinspecifications in its operational electromagnetic environment and to limit radiatedemissions, care should be taken in the selection, design, and installation ofmeasurement probes and 2. AO Absolute AccuracyNominalRangePositiveFull Scale(V)NominalRangeNegativeFull Scale(V)ResidualGain Error(ppm ofReading)GainTempco(ppm/ C)ResidualOffsetError (ppmof Range)OffsetTempco(ppm ofRange/ C)AbsoluteAccuracyat FullScale ( V) 10-10901160123,512 Reference tempco5 ppm/ CINL error128 ppm of rangeAO Absolute Accuracy EquationAbsoluteAccuracy = OutputValue (GainError) + Range (OffsetError)GainError = ResidualGainError + GainTempco (TempChangeFromLastInternalCal) +ReferenceTempco (TempChangeFromLastExternalCal)OffsetErr or = ResidualOffsetError + AOOffsetTempco (TempChangeFromLastInternalCal) + INLE rror6 | | USB-6212 SpecificationsDigital I/O and PFIS tatic Digital I/O CharacteristicsDigital input or outputBNC/Mass Termination24 total, 8 (P0.)

6 < >),16 (PFI < >/P1.< >,PFI < >/P2.< >)Screw Terminal32 total, 16 (P0.< >),16 (PFI < >/P1.< >,PFI < >/P2.< >)Ground referenceD GNDPull-down resistor50 k typical, 20 k minimumInput voltage protection 20 V on up to 8 pins1 PFI FunctionalityFunctionalityStatic digital input, static digital output, timinginput, timing outputTiming output sourcesMany AI, AO, counter timing signalsDebounce filter settings125 ns, s, ms, disable; high andlow transitions; selectable per inputMaximum Operating ConditionsIOL output low current16 mA maximumIOH output high current-16 mA maximumDigital Input CharacteristicsLevelMinimumMaximum VIL input low voltage0 VVIH input high VIIL input low current (Vin = 0 V)--10 AIIH input high current (Vin = 5 V)-250 A1 Stresses beyond those listed under Input voltage protection may cause permanent damage to Specifications | National Instruments | 7 LevelMinimumMaximum Positive-going threshold (VT+) VNegative-going threshold (VT-) V-Delta VT hysteresis (VT+ - VT-) V-Digital Output CharacteristicsFigure 3.

7 PFI < >/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 = V623458 | | USB-6212 SpecificationsFigure 4. PFI < >/P0.< >: Iol versus (V)Iol (mA)55 C; Vdd = V25 C; Vdd = V0 C; Vdd = VGeneral-Purpose Counters/TimersNumber of counter/timers2 Resolution32 bitsCounter measurementsEdge counting, pulse, semi-period, period,two-edge separationPosition measurementsX1, X2, X4 quadrature encoding withChannel Z reloading; two-pulse encodingOutput applicationsPulse, pulse train with dynamic updates,frequency division, equivalent time samplingInternal base clocks80 MHz, 20 MHz, MHzExternal base clock frequency0 MHz to 20 MHzBase clock accuracy50 ppmInputsGate, Source, HW_Arm, Aux, A, B, Z,Up_DownRouting options for inputsPFI < >, many internal signalsFIFO1,023 samplesData transfersUSB Signal Stream, programmed I/OUSB-6212 Specifications | National Instruments | 9 Frequency GeneratorNumber of channels1 Base clocks10 MHz, 100 kHzDivisors1 to 16 Base clock accuracy50 ppmOutput can be available on any output PFI Digital TriggersSourcePFI < >PolaritySoftware-selectable for most signalsAnalog input functionStart Trigger, Reference Trigger,Pause Trigger, Sample clock , Convert clock ,Sample clock TimebaseAnalog output functionStart Trigger, Pause Trigger, Sample clock ,Sample clock TimebaseCounter/timer functionGate.

8 Source, HW_Arm, Aux, A, B, Z,Up_DownBus InterfaceUSBUSB Hi-Speed or full-speed2 USB Signal Stream4, can be used for analog input, analog output,counter/timer 0, counter/timer 1 Current Limits+5 V terminal as V to VCurrent (internally limited)50 mA maximum, shared with digital outputs2If you are using an USB M Series device in full-speed mode, device performance will be lower andyou will not be able to achieve maximum sample/update Screw Terminal/BNC devices have a self-resetting fuse that opens when current exceeds thisspecification. USB Mass Termination devices have a user-replaceable socketed fuse that openswhen current exceeds this specification. Refer to the NI USB-621x User Manual for informationabout fuse | | USB-6212 Specifications +5 V terminal as V to VCurrent350 mA maximum, self-resetting fuseCaution Do not exceed 16 mA per DIO 10 VPower RequirementsInput voltage on USB V to V in configured stateMaximum inrush current500 mANo load typical current320 mA at VMaximum loadTypical current400 mA at VSuspend current260 A typicalPhysical CharacteristicsDimensions (includes connectors) cm cm cm( in.)

9 In. in.)Mass cm cm cm( in. in. in.)Screw cm cm cm( in. in. in.)WeightBNC950 g ( oz)Mass Termination227 g ( oz)Screw Terminal206 g ( oz)I/O connectorsBNC19 BNCs and 26 screw terminalsMass Termination1 68-pin SCSIS crew Terminal4 16-position combiconUSB-6212 Specifications | National Instruments | 11 Screw terminal wiring16 AWG to 28 AWGT orque for screw N m to N m( lb in. to lb in.)USB connectorSeries B receptacleTo clean the device, wipe with a dry warm-up time15 minutesCalibration interval1 yearEnvironmentalOperating temperature0 C to 45 CStorage temperature-20 C to 70 CHumidity10% RH to 90% RH, noncondensingMaximum altitude2,000 mPollution Degree2 Indoor use VoltagesConnect only voltages that are below these ground11 V, Measurement Category IMeasurement Category I is for measurements performed on circuits not directly connected tothe electrical distribution system referred to as MAINS voltage.

10 MAINS is a hazardous liveelectrical supply system that powers equipment. This category is for measurements of voltagesfrom 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 Do not use for measurements within Categories II, III, or Measurement Categories CAT I and CAT O (Other) are equivalent. These testand measurement circuits are not intended for direct connection to the MAINS building installations of Measurement Categories CAT II, CAT III, or CAT | | USB-6212 SpecificationsSafetyThis product is designed to meet the requirements of the following electrical equipment safetystandards for measurement, control, and laboratory use: IEC 61010-1, EN 61010-1 UL 61010-1, CSA No. 61010-1 Note For UL and other safety certifications, refer to the product label or the OnlineProduct Certification CompatibilityThis product meets the requirements of the following EMC standards for electrical equipmentfor measurement, control, and laboratory use; for radio equipment; and for telecommunicationterminal equipment: EN 61326-1 (IEC 61326-1): Class A emissions; Basic immunity EN 55011 (CISPR 11): Group 1, Class A emissions EN 55022 (CISPR 22): Class A emissions EN 55024 (CISPR 24): Immunity AS/NZS CISPR 11: Group 1, Class A emissions AS/NZS CISPR 22: Class A emissions FCC 47 CFR Part 15B: Class A emissions ICES-001: Class A emissionsNote In the United States (per FCC 47 CFR), Class A equipment is intended foruse in commercial, light-industrial, and heavy-industrial locations.