NI PXI-4461 Specifications

Transcription

1 NI PXI-446 Specifications Analog Input Input Characteristics This document lists specifications for the NI PXI-446 Dynamic Signal Acquisition (DSA) device. These specifications are typical at 5 C unless otherwise stated. The operating range is 0 C to 55 C. All specifications are subject to change without notice. Visit ni.com/manuals for the most current specifications and product documentation. This section lists the NI PXI-446 analog input specifications. Number of input channels..., simultaneously sampled Input configuration... Differential or pseudodifferential (50 Ω between negative input and chassis ground), per input channel selectable Input coupling... AC or DC, each channel independently software selectable ADC Resolution... 4 bits ADC type... Delta-sigma Sample rates (f s )... ks/s to 04.8 ks/s in 8.9 µs/s increments Oversampling, for sample rate.0 ks/s f s < 5. ks/s... 8 f s 5. ks/s f s < 0.4 ks/s f s 0.4 ks/s f s 04.8 ks/s... 3 f s FIFO buffer size...,03 samples Data transfers... Direct memory access (DMA)

2 Input Common Mode Range Gain (db) Input Differential Pseudodifferential 0 + ± V pk ± V pk ± V pk ±0 V pk <0 + ±4.4 V pk ±4.4 V pk ±4.4 V pk ±0 V pk Voltages with respect to ground Input Overvoltage Protection Differential configuration...±4.4 V pk Pseudodifferential configuration, positive...±4.4 V pk Pseudodifferential configuration, negative (shield)...±0.0 V pk Input Signal Range Gain (db) Full Scale Range (V pk ) 30 ± ±.00 0 ±3.6 0 ±0.0 0 ±3.6 0 ±4.4 Each input channel gain is independently software selectable. NI PXI-446 Specifications ni.com

3 Transfer Characteristics AI Offset (Residual DC) Gain (db) Maximum Offset, 4 Hr, T cal ±5 C (±mv) Maximum Offset, 0 C to 55 C (±mv) Source impedance 50 Ω T cal = ambient temperature at which last calibration was performed AI Gain Amplitude Accuracy khz input tone T cal ±5 C... ±0.03 db max 0 C to 55 C... ±0. db max Amplifier Characteristics Typical Input Impedance Input Impedance Between positive input and chassis ground Between negative input and chassis ground Differential Configuration Pseudodifferential Configuration MΩ 7 pf MΩ 7 pf MΩ 9 pf 50 Ω National Instruments Corporation 3 NI PXI-446 Specifications

4 Common Mode Rejection Ratio (CMRR) Gain (db) Typical CMRR (dbc), , 0 60 khz input tone Differential configuration, DC coupling Dynamic Characteristics Alias free bandwidth (BW) (passband)...dc to f s Alias rejection...0 dbc min f s < frequency input < f s, where.0 ks/s f s 5. ks/s f s < frequency input < f s, where 5. ks/s < f s 0.4 ks/s f s < frequency input < f s, where 0.4 ks/s < f s 04.8 ks/s 3 db BW f s ADC filter delay...63/f s seconds AC coupling BW 3 db cutoff frequency Hz typical 0. db cutoff frequency...6 Hz typical Test system equipped with a liquid crystal display (LCD) monitor for AI noise and distortion measurements to avoid possible magnetic interference caused by cathode ray tube (CRT)-based monitors. NI PXI-446 Specifications 4 ni.com

5 db ref to khz k 0.0k Input Frequency (Hz) Figure. Magnitude Response of AC Coupling Circuit ( Hz to khz) Phase Response (Deg) k 0.0k Input Frequency (Hz) Figure. Phase Response of AC Coupling Circuit ( Hz to khz) National Instruments Corporation 5 NI PXI-446 Specifications

6 AI Flatness Gain (db) 0 Hz to 0 khz Flatness, (db), Max 0 Hz to 45 khz 0 Hz to 9. khz 0, 0, 0, 30 ±0.008 ±0.03 ±0. 0, 0 ±0. ±0.33 ±0.55 Relative to khz DC coupling AI Spectral Noise Density AI spectral noise density...8 nv/ Hz typical at 30 db gain, khz.0e E 9 V/sqrt (Hz) 0.0E 9.0E 9.0E+0 0.0E E+0.0E+3 0.0E E+3 Frequency (Hz) Figure 3. AI Spectral Noise Density (30 db Gain) NI PXI-446 Specifications 6 ni.com

7 AI Idle Channel Noise Gain (db) ks/s f s 5. ks/s Maximum Idle Channel Noise 5. ks/s < f s 0.4 ks/s 0.4 ks/s < f s 04.8 ks/s dbv rms µv rms dbv rms µv rms dbv rms µv rms Source impedance 50 Ω AI Spurious Free Dynamic Range (SFDR) Gain Setting (db) SFDR (dbc), Typical, , 0, , 0 0 f s = 04.8 ks/s khz input tone, input amplitude is the lesser of dbfs or 8.9 V pk National Instruments Corporation 7 NI PXI-446 Specifications

8 db Full-Scale Frequency (Hz) Figure 4. SFDR 5. ks/s ( dbfs, 0 db Gain) db Full-Scale Frequency (Hz) Figure 5. SFDR 0.4 ks/s ( dbfs, 0 db Gain) NI PXI-446 Specifications 8 ni.com

9 db Full-Scale Frequency (Hz) AI Dynamic range Gain Setting (db) Figure 6. SFDR 04.8 ks/s ( dbfs, 0 db Gain) ks/s f s 5. ks/s Minimum Dynamic Range (dbfs) 5. ks/s < f s 0.4 ks/s 0.4 ks/s < f s 04.8 ks/s khz input tone, 60 dbfs input amplitude National Instruments Corporation 9 NI PXI-446 Specifications

10 AI Total Harmonic Distortion (THD), Balanced Source Typical THD (dbc), Gain (db) 0 Hz to 0 khz 0 Hz to 9. khz , f s = 04.8 ks/s, 9.8 khz BW, differential configuration Input amplitude is the lesser of dbfs or 8.9 V pk AI THD, Unbalanced Source Typical THD (dbc), Gain (db) 0 Hz to 0 khz 0 Hz to 9. khz f s = 04.8 ks/s, 9.8 khz BW Input amplitude is the lesser of dbfs or 8.9 V pk NI PXI-446 Specifications 0 ni.com

11 dbc k 0.0k 00.0k Input Frequency (Hz) Figure 7. AI THD (Balanced Source with Differential Configuration, 04.8 ks/s, 0 db Gain) AI Total Harmonic Distortion Plus Noise (THD+N), Balanced Source Gain (db) Typical THD+N (dbc) 5. ks/s 04.8 ks/s 0 Hz to 0 khz 0 Hz to 9. khz Input amplitude is the lesser of dbfs or 8.9 V pk, differential configuration 3. khz measurement BW khz measurement BW National Instruments Corporation NI PXI-446 Specifications

12 AI THD+N, Unbalanced Source Gain (db) Typical THD + N (dbc) 5. ks/s 0 Hz to 0 khz 04.8 ks/s 0 Hz to 9. khz Input amplitude is the lesser of dbfs or 8.9 V pk 3. khz measurement BW khz measurement BW AI Intermodulation Distortion (IMD) Gain (db) Typical IMD (dbc) 0, , 0 CCIF 4 khz + 5 khz, each tone amplitude is the lesser of 6 dbfs or 5 V pk NI PXI-446 Specifications ni.com

13 Crosstalk (Input Channel Separation) Typical Crosstalk (dbc), Gain (db) khz Signal 9. khz , Source impedance 50 Ω Input amplitude is the lesser of dbfs or 8.9 V pk Crosstalk (Output to Input Channel Separation) Typical Crosstalk (dbc), Gain (db) khz Signal 9. khz , Source impedance 50 Ω Output amplitude is the lesser of dbfs or 8.9 V pk AI Interchannel Gain Mismatch Typical Mismatch (db) Gain (db) 0 Hz to 0 khz 0 Hz to 9. khz 0, 0, 0, 30 ±0.0 ±0.0 0, 0 ±0.0 ±0.0 Identical channel configurations National Instruments Corporation 3 NI PXI-446 Specifications

14 AI Interchannel Phase Mismatch Typical Mismatch (deg) Gain (db) 0 Hz to 0 khz 0 khz to 9. khz 30 ±0.0 ±0.0 0, 0, 0 ±0.0 ±0.0 0, 0 ±0.0 ±.50 Identical channel configurations AI Phase Linearity Onboard Calibration Reference Typical Linearity (deg) Gain (db) 0 Hz to 0 khz 0 Hz to 9. khz 30 ±0.0 ±0.60 0, 0, 0 ±0.0 ± ±0.0 ±.90 0 ±0.0 ±3.0 DC level V ±.5 mv Temperature Coefficient...±5 ppm/ C max Long-term stability...±5 ppm/ 000 hr Integrated Electronic Piezoelectric (IEPE) Current...0 to 0 ma ±5%, 0 µa resolution, each channel independently software selectable Compliance...4 V min Channel input impedance with IEPE enabled... MΩ 40 pf typical, pseudodifferential Current noise... <300 pa Hz typical NI PXI-446 Specifications 4 ni.com

15 Analog Output Output Characteristics This section lists the NI PXI-446 analog output specifications. Number of output channels..., simultaneously sampled Output configuration... Differential or pseudodifferential (50 Ω to chassis ground on shield), each channel independently software selectable DAC Resolution... 4 bits DAC type... Delta-sigma Update rates (f s )... ks/s to 04.8 ks/s in 8.9 µs/s increments Oversampling, for update rate.0 ks/s f s <.6 ks/s f s.6 ks/s f s < 3. ks/s f s 3. ks/s f s < 6.4 ks/s f s 6.4 ks/s f s <.8 ks/s f s.8 ks/s f s < 5.6 ks/s... 5 f s 5.6 ks/s f s < 5. ks/s f s 5. ks/s f s < 0.4 ks/s... 8 f s 0.4 ks/s f s 04.8 ks/s f s FIFO buffer size...,03 samples Data transfers... DMA Output Signal Range Attenuation (db) Full Scale Range (V pk ) 40 ±0. 0 ±.0 0 ±0.0 Each output channel is independently software selectable National Instruments Corporation 5 NI PXI-446 Specifications

16 Transfer Characteristics AO Offset (Residual DC) Attenuation (db) Maximum Offset, 4 Hr, T cal ±5 C (±mv) Maximum Offset, 0 C to 55 C (±mv) 0, Gain (Amplitude Accuracy) Specifications valid at any attenuation setting with a khz output signal. T cal ±5 C...±0.04 db max 0 C to 55 C...±0. db max Voltage Output Output coupling...dc Short circuit protection...indefinite protection between positive and negative Minimum working load Ω Typical Output Impedance Output Impedance Differential Configuration Pseudodifferential Configuration Between positive output and chassis ground Between negative output and chassis ground Between positive and negative outputs.4 kω 70 Ω.4 kω 50 Ω Ω Ω NI PXI-446 Specifications 6 ni.com

17 Dynamic Characteristics Image rejection db min < 768 khz 66 db min > 768 khz 3 db BW f s AO Flatness All attenuation settings relative to khz 0 Hz to 0 khz... ±0.008 db max 0 Hz to 9. khz... ±0. db max AO Idle Channel Noise Maximum Idle Channel Noise Attenuation (db) 0.5 ks/s (30 khz BW) 04.8 ks/s (80 khz BW) 04.8 ks/s (500 khz BW) dbv rms µv rms dbv rms µv rms dbv rms µv rms AO Spurious Free Dynamic Range (SFDR) Attenuation (db) Typical SFDR (dbc), f s = 04.8 ks/s khz output frequency, dbfs output amplitude Test system equipped with a liquid crystal display (LCD) monitor for AI noise and distortion measurements to avoid possible magnetic interference caused by cathode ray tube (CRT)-based monitors. National Instruments Corporation 7 NI PXI-446 Specifications

18 AO Dynamic Range Attenuation (db) 0.5 ks/s (30 khz BW) Minimum Dynamic Range (dbfs) 04.8 ks/s (80 khz BW) 04.8 ks/s (500 khz BW) khz output frequency AO Total Harmonic Distortion (THD) Attenuation (db) 0.5 ks/s 0 Hz to 0 khz Typical THD (dbc) 04.8 ks/s 0 Hz to 0 khz ks/s 0 Hz to 9. khz dbfs output amplitude 30 khz measurement BW khz measurement BW dbc k 0.0k 00.0k Output Frequency (Hz) Figure 8. AO THD (04.8 ks/s, 0 db Gain, 65,536 Samples) NI PXI-446 Specifications 8 ni.com

19 AO Total Harmonic Distortion Plus Noise (THD+N) Typical THD + N (dbc) Attenuation (db) 0.5 ks/s 0 Hz to 0 khz 04.8 ks/s 0 Hz to 80 khz ks/s 0 Hz to 9. khz dbfs output amplitude 30 khz measurement BW 3 80 khz measurement BW khz measurement BW AO Intermodulation Distortion (IMD) Attenuation (db) Typical IMD (dbc) CCIF 4 khz + 5 khz, each tone amplitude is 6 dbfs Crosstalk (Output Channel Separation) No measurable crosstalk AO Interchannel Gain Mismatch All attenuation settings 0 Hz to 9. khz... ±0.0 db AO Interchannel Phase Mismatch All attenuation settings 0 Hz to 0 khz... ±0. typical 0 Hz to 9. khz... ±0. typical National Instruments Corporation 9 NI PXI-446 Specifications

20 AO Phase Linearity Typical Linearity (deg) Attenuation (db) 0 Hz to 0 khz 0 Hz to 9. khz Internal Frequency Timebase Characteristics Triggers 0 ±0. ±.7 0 ±0. ±.6 40 ±0. ±.8 Accuracy...±0 ppm, 0 C to 70 C Aging...8 ppm in first year 8 ppm after 0 years Analog Trigger Purpose...Start trigger Source...AI0 or AI Level...Full scale, programmable Slope...Positive (rising) or negative (falling), software selectable Resolution...4 bits Hysteresis...Programmable Digital Trigger Purpose...Start or reference trigger Source...PFI0, PXI_Trig<0..6> Compatibility...Transistor-transistor logic (TTL) Polarity...Rising or falling edge Minimum pulse width...0 ns Bus Interface Type...PXI master/slave NI PXI-446 Specifications 0 ni.com

21 Power Requirements Voltage Typical Max +5 V 990 ma,600 ma +3.3 V,430 ma,70 ma + V 70 ma 300 ma V 0 ma 70 ma Physical Dimensions (not including connectors)... 6 cm 0 cm (6.3 in. 3.9 in.) 3U CompactPCI slot Analog I/O connectors... BNC female Digital trigger connector... SMB male Environmental Operating Environment Ambient temperature range... 0 C to 55 C (Tested in accordance with IEC and IEC ) Relative humidity range... 0% to 90%, noncondensing (Tested in accordance with IEC ) Altitude...,000 m (at 5 C ambient temperature) Pollution Degree (indoor use only)... Storage Environment Ambient temperature range... 0 C to 70 C (Tested in accordance with IEC and IEC ) Relative humidity range... 5% to 95%, noncondensing (Tested in accordance with IEC ) National Instruments Corporation NI PXI-446 Specifications

22 Shock and Vibration Operational shock...30 g peak, half-sine, ms pulse (Tested in accordance with IEC Test profile developed in accordance with MIL-PRF-8800F.) Random vibration Operating...5 Hz to 500 Hz, 0.3 g rms Nonoperating...5 Hz to 500 Hz,.4 g rms (Tested in accordance with IEC Nonoperating test profile exceeds the requirements of MIL-PRF-8800F, Class 3.) Calibration Self-calibration...On software command, the device computes gain and offset corrections relative to high-precision internal reference. Interval...Recommended whenever ambient temperature differs from T cal by more than ±5 C General Specifications External calibration interval... year Warm-up time...5 min Installation Category...I NI PXI-446 Specifications ni.com

23 Safety The NI PXI-446 is designed to meet the requirements of the following standards of safety for electrical equipment for measurement, control, and laboratory use: IEC 600-, EN 600- UL 3-, UL 600B- CAN/CSA C. No. 00. Note For UL and other safety certifications, refer to the product label, or visit ni.com/hardref.nsf, search by model number or product line, and click the appropriate link in the Certification column. Electromagnetic Compatibility Emissions... EN 550 Class A at 0 m FCC Part 5A above GHz Immunity... EN 636:997 + A:00, Table CE, C-Tick, and FCC Part 5 (Class A) Compliant Note For EMC compliance, operate this device with shielded cabling. CE Compliance The NI PXI-446 meets the essential requirements of applicable European Directives, as amended for CE marking, as follows: Low-Voltage Directive (safety)... 73/3/EEC Electromagnetic Compatibility Directive (EMC)... 89/336/EEC Note Refer to the Declaration of Conformity (DoC) for this product for any additional regulatory compliance information. To obtain the DoC for this product, visit ni.com/hardref.nsf, search by model number or product line, and click the appropriate link in the Certification column. National Instruments Corporation 3 NI PXI-446 Specifications

24 National Instruments, NI, and ni.com are trademarks of National Instruments Corporation. Product and company names mentioned herein are trademarks or trade names of their respective companies. For patents covering National Instruments products, refer to the appropriate location: Help»Patents in your software, the patents.txt file on your CD, or ni.com/patents. 004 National Instruments Corp. All rights reserved. *33770A-0* 33770A-0 Mar04