PXIe-4150 Specifications

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Updated2025-10-22
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PXIe-4150 Specifications

These specifications apply to the PXIe-4150.

Revision History

Version	Date changed	Description
378996B-01	October 2025	Updated the AUX I/O connector pinout and the physical characteristics.
378996A-01	September 2024	Initial release.

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Definitions

Warranted specifications describe the performance of a model under stated operating conditions and are covered by the model warranty.

Characteristics describe values that are relevant to the use of the model 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 testing.

Specifications are Warranted unless otherwise noted.

Conditions

Specifications are valid under the following conditions unless otherwise noted:

Ambient temperature^[1]¹ The ambient temperature of a PXI system is defined as the temperature at the chassis fan inlet (air intake). of 23 °C ± 5 ºC.
Chassis with ≥38 W slot cooling capacity.^[2]² For increased capability, NI recommends installing the PXIe-4150 in a chassis with slot cooling capacity ≥58 W.
- For chassis with slot cooling capacity = 38 W, fan speed set to HIGH
Calibration interval of 2 years.
Warm-up time of 30 minutes.
Self-calibration performed within the last 24 hours.
NI-DCPower Aperture Time is set to 1 power-line cycle (PLC).

PXIe-4150 Pinout

Use the pinouts to connect to terminals on the PXIe-4150.

Output Connector

Table 5. Signal Descriptions for the Output Connector
Pin	Description
HI terminal	HI force terminal connected to channel power stage (generates and/or dissipates power). Positive polarity is the voltage that is measured on HI > LO.
LO terminal	LO force terminal connected to channel power stage (generates and/or dissipates power). Positive polarity is the voltage that is measured on HI > LO.
HI S terminal	Voltage remote sense HI S input terminal. Used to compensate for I x R voltage drops in cable leads, connectors, and switches.
LO S terminal	Voltage remote sense LO S input terminal. Used to compensate for I x R voltage drops in cable leads, connectors, and switches.
GND () terminals	Tied to chassis ground through module front panel. Use for connections to cable shields. Do not use for grounding the LO force terminal due to pin current rating.

AUX I/O Connector

Table 6. Signal Descriptions for AUX I/O Connector
Pin	Signal	Description
1	PFI 0	Programmable Function Interface for digital timing and triggering.
2	PFI 1	Programmable Function Interface for digital timing and triggering.
3	FAULT	Device fault status output.
4	INHIBIT	Forces the PXIe-4150 output to an inhibited state when not shorted to ground. You can short this pin to ground using the pre-installed jumper to enable normal operation.
5	GND	Ground reference for AUX I/O.
6	PFI 2	Programmable Function Interface for digital timing and triggering.
7	GND	Ground reference for AUX I/O.
8	GND	Ground reference for AUX I/O.

AUX Power In Connector

Table 7. Signal Descriptions for the AUX Power In Connector
Signal	Description
+	Auxiliary power input with positive polarity.
-	Auxiliary power input with negative polarity.

Physical Characteristics

Table 8. Physical Characteristics
Dimensions	3U, two-slot, PXI Express/cPCI Express module, 4.0 cm × 13.0 cm × 21.6 cm (1.6 in. × 5.1 in. × 8.5 in.) For more information, visit ni.com/dimensions and search by module number.
Weight	650 g (22.9 oz)

Table 9. Front Panel Connectors
Output	OMNIMATE Hybrid, 7.62 mm (4 position), 2.54 mm (6 position)
AUX I/O	MICRO COMBICON - DFMC 0, 5, 2.54 mm (8 position)
AUX Power In	MEGA-FIT RECEPTACLE, 5.7 mm (4 position)

Instrument Capabilities

Table 10. DC Ranges
Voltage	6 V, 60 V
Current	100 mA, 1 A, 10 A

Note Maximum current allowed in the 10 A range is dependent on ambient temperature and chassis cooling capacity. Refer to the following figures for additional detail.

Figure 8. PXIe-4150 Quadrant Diagram, 0 °C to 40 °C

Figure 9. PXIe-4150 Quadrant Diagram, >40 °C

Table 11. DC Power
Available DC output power^[3]³ Power limit defined by voltage measured between HI and LO terminals.	300 W

Note An auxiliary power source with sufficient capacity is required for operation. Refer to Power Requirements for additional details.

Voltage

Table 12. Voltage Programming and Measurement Accuracy/Resolution
Range	Resolution (Noise Limited)	Noise (0.1 Hz to 10 Hz, peak-to-peak, typical)	Accuracy ± (% of Voltage + Offset)^[4]⁴ Refer to the Remote Sense section for additional accuracy derating and conditions. T_ambient 23 °C ± 5 °C, T_cal^[5]⁵ T_cal is the internal device temperature recorded by the PXIe-4150 at the completion of the last self-calibration. ± 5 °C		Tempco^[6]⁶ Temperature coefficient applies beyond 23 °C ± 5 °C ambient within ± 5 °C of T_cal. ± (% of Voltage + Offset)/°C T_ambient 0 °C to 40 °C, T_cal ± 5 °C
6 V	1 μV	10 μV	0.022% + 500 μV		0.001% + 3 μV
60 V	10 μV	100 μV	0.024% + 5 mV		0.001% + 30 μV

Current

Table 13. Current Programming and Measurement Accuracy/Resolution
Range	Resolution (Noise Limited)	Noise (0.1 Hz to 10 Hz, peak-to-peak, typical)	Accuracy ± (% of Current + Offset) T_ambient 23 °C ± 5 °C, T_cal^[7]⁷ T_cal is the internal device temperature recorded by the PXIe-4150 at the completion of the last self-calibration. ± 5 °C	Tempco^[8]⁸ Temperature coefficient applies beyond 23 °C ± 5 °C ambient within ± 5 °C of T_cal. ± (% of Current + Offset)/°C T_ambient 0 °C to 40 °C, T_cal ± 5 °C
100 mA	10 nA	200 nA	0.03% + 30 μA	0.002% + 100 nA
1 A	100 nA	2 μA	0.03% + 300 μA	0.002% + 1 μA
10 A	10 μA	50 μA	0.075% + 2 mA	0.003% + 10 μA

Noise

Table 14. Noise
Wideband source noise^[9]⁹ 10 Hz to 20 MHZ bandwidth, measured with 1 µF load capacitance at the end of 1 m shielded cable. PXIe-4150 configured for normal transient response.	<20 mV peak-to-peak, typical

The following figures illustrate measurement noise as a function of measurement aperture time for the PXIe-4150.

Figure 10. Voltage RMS Noise Versus Aperture Time, Nominal

Figure 11. Current RMS Noise Versus Aperture Time, Nominal

Note When the aperture time is set to two power-line cycles (PLCs), measurement noise differs slightly depending on whether the Power Line Frequency property is set to 50 Hz or 60 Hz.

Note Use the DC Noise Rejection property to configure normal or second-order DC noise rejection.

Settling Time and Transient Response

Note Settling time is measured as the time to settle to within 0.1% of step amplitude, PXIe-4150 configured for fast transient response.

Table 15. Settling Time
Voltage mode, ≤54 V step, unloaded	<4.7 ms, typical
Current mode, full-scale step, 10 A range	<3.1 ms, typical
Current mode, full-scale step, 1 A range	<3.3 ms, typical
Current mode, full-scale step, 100 mA range	<2.9 ms, typical

Note Settling time specifications for voltage mode derived with current limit set to ≥20% of the selected current limit range.

Note Settling time specifications for current mode (all ranges) derived with voltage limit set to ≥2 V, resistive load set to 1 V/selected current range.

Table 16. Transient Response
Current Range	Value
10 A	<100 μs, typical to recover within ±300 mV
1 A	<150 μs, typical to recover within ±10 mV

Note Transient response is the time to recover within the stated recovery band after a load current change from 50% to 100% of range, PXIe-4150 configured for fast transient response.

Remote Sense

Table 17. Remote Sense
Voltage accuracy	Add 10 µV per volt of lead drop per ohm of corresponding sense lead resistance to voltage accuracy specifications.
Maximum sense lead resistance	100 Ω
Maximum lead drop per lead	1 V, maximum 60 V between HI and LO terminals

Load Regulation

Table 18. Load Regulation
Voltage, local sense^[10]¹⁰ Measured between HI and LO terminals at the module output connector.	15 μV/mA (15 mΩ), nominal; 30 μV/mA (30 mΩ), maximum
Voltage, remote sense	Error included in accuracy specifications.
Current	Error included in accuracy specifications.

Auxiliary Power Input Line Regulation

Note Auxiliary power input line regulation is the impact to voltage and current accuracy specifications as a result of change in voltage at the auxiliary power input.

Table 19. Auxiliary Power Input Line Regulation
Voltage	Error included in accuracy specifications.
Current	Error included in accuracy specifications.

Isolation

Table 20. Isolation
Isolation voltage, any channel I/O pin^[11]¹¹ Channel I/O pins include the HI, LO, HI Sense and LO Sense terminals. The Shield GND terminals of the output connector are connected to chassis ground and not considered channel I/O pins. to earth ground	150 V DC, CAT I
Transient overvoltage	800 V peak

Caution Isolation voltage ratings apply to the voltage measured between any channel pin (HI, LO, HI Sense, LO Sense) and the chassis ground. When operating channels in series or floating on top of external voltage references, ensure that no terminal exceeds this rating.

Caution Les tensions nominales d'isolation s'appliquent à la tension mesurée entre n'importe quelle broche de voie et la masse du châssis. Lors de l'utilisation de voies en série ou flottantes en plus des références de tension externes, assurez-vous qu'aucun terminal ne dépasse cette valeur nominale.

Note Measurement Categories CAT I and CAT O are equivalent. These test and measurement circuits are for other circuits not intended for direct connection to the MAINS building installations of Measurement Categories CAT II, CAT III, or CAT IV.

Protection

Table 21. General Module Protection
Absolute maximum voltage, between any channel I/O pin^[12]¹² Channel I/O pins include the HI, LO, HI Sense and LO Sense terminals. The Shield GND terminals of the output connector are connected to chassis ground and not considered channel I/O pins. and LO	60 V
Any AUX I/O pin to ground	5 V
AUX Power In + to AUX Power In –	±60 V
AUX Power In – to ground	±1 V

Table 22. Output channel protection
Overcurrent or overvoltage	Automatic shutdown, output disconnect relay opens
Reverse voltage protection	Automatic shutdown, output disconnect relay opens
Down programmer overload	Automatic shutdown, output disconnect relay opens
Overtemperature	Automatic shutdown, output disconnect relay opens

Table 23. AUX Power protection
Overvoltage or undervoltage	Automatic shutdown, output disconnect relay opens
Overcurrent	Automatic shutdown, output disconnect relay opens, non-accessible fuse as backup protection

Measurement and Update Timing

Table 24. General Module Measurement and Update Timing
Available sample rates^[13]¹³ When sourcing while measuring, both the Source Delay and Aperture Time affect the sampling rate. When taking a measure record, only the Aperture Time affects the sampling rate.	(1.8 MS/s)/N, nominal where S is samples N = 1, 2, 3, … 2²⁴
Sample rate accuracy	Equal to PXIe_CLK100 accuracy, nominal
Maximum measure rate to host	1.8 MS/s per channel, continuous, nominal
Maximum source update rate^[14]¹⁴ As the Source Delay is adjusted, or if advanced sequencing is used, maximum update rates vary.	100,000 updates/s, nominal

Table 25. Input Trigger To
Source event delay	10 μs, nominal
Source event jitter	2 μs peak-to-peak, nominal
Measure event jitter	2 μs peak-to-peak, nominal

Triggers

Input Triggers

Table 26. General Input Triggers
Types	Start, Source, Sequence Advance, Measure

Table 27. Input Trigger Sources (PXI trigger lines <0...7>
Polarity	Active high (not configurable)
Minimum pulse width	100 ns

Note Pulse widths and logic levels are compliant with PXI Express Hardware Specification Revision 1.0 ECN 1

Table 28. Input Trigger Destinations
Polarity	Active high (not configurable)
Pulse width	>200 ns

Note Input triggers can come from any source (PXI trigger or software trigger) and be exported to any PXI trigger line. This allows for easier multi-board synchronization regardless of the trigger source.

Note As the Source Delay is adjusted, or if advanced sequencing is used, maximum update rates vary.

Output Triggers (Events)

Table 29. General Output Triggers
Types	Source Complete, Sequence Iteration Complete, Sequence Engine Done, Measure Complete

Table 30. Output Trigger Destinations
Polarity	Active high (not configurable)
Pulse width	>230 ns

Note As the Source Delay is adjusted, or if advanced sequencing is used, maximum update rates vary.

AUX I/O (Fault)

Table 31. General AUX I/O Triggers
Direction	Output
Logic type	3.3 V CMOS (open drain, internal pull-up)
Polarity	Active low (not configurable)
Output voltage range	0 V to 3.3 V, typical
Output impedance (active low)	50 Ω, nominal
Internal pull-up resistance	10 kΩ, nominal

Power Requirements

Table 32. Power Requirements
PXIe Chassis, +3.3 V	1 A, maximum
PXIe Chassis, +12 V	1 A, maximum
Auxiliary power source input	45.6 VDC to 50.4 VDC, 9 A, maximum

Note Current drawn from the auxiliary power source depends on power delivered from the instrument to the load. Refer to the PXIe-4150 user manual for additional details on power budgeting when multiple modules are powered from a single auxiliary power source.

Environmental Guidelines

Notice Failure to follow the mounting instructions in the product documentation can cause temperature derating.

Notice This product is intended for use in indoor applications only.

Environmental Characteristics

Table 33. Temperature
Operating	0 °C to 55 °C^[15]¹⁵ Not all chassis can achieve this ambient temperature range. Refer to PXI chassis specifications to determine the ambient temperature ranges your chassis can achieve.^,^[16]¹⁶ Max ambient temperature deratings apply when operating the 10 A range above certain current levels. Refer to Instrument Capabilities section of the specifications for additional detail.
Storage	-40 °C to 71 °C

Table 34. Humidity
Operating	10% to 90%, noncondensing
Storage	5% to 95%, noncondensing

Table 35. Pollution Degree
Pollution degree	2

Table 36. Maximum Altitude
Maximum altitude	2,000 m (800 mbar) (at 25 °C ambient temperature)

Table 37. Shock and Vibration
Operating vibration	5 Hz to 500 Hz, 0.3 g RMS
Non-operating vibration	5 Hz to 500 Hz, 2.4 g RMS
Operating shock	30 g, half-sine, 11 ms pulse

Calibration Interval

You can obtain the calibration certificate and information about calibration services for the PXIe-4150 at ni.com/calibration.

Table 38. Calibration Interval
Calibration interval	2 years

¹ The ambient temperature of a PXI system is defined as the temperature at the chassis fan inlet (air intake).

² For increased capability, NI recommends installing the PXIe-4150 in a chassis with slot cooling capacity ≥58 W.

³ Power limit defined by voltage measured between HI and LO terminals.

⁴ Refer to the Remote Sense section for additional accuracy derating and conditions.

⁵ T_cal is the internal device temperature recorded by the PXIe-4150 at the completion of the last self-calibration.

⁶ Temperature coefficient applies beyond 23 °C ± 5 °C ambient within ± 5 °C of T_cal.

⁷ T_cal is the internal device temperature recorded by the PXIe-4150 at the completion of the last self-calibration.

⁸ Temperature coefficient applies beyond 23 °C ± 5 °C ambient within ± 5 °C of T_cal.

⁹ 10 Hz to 20 MHZ bandwidth, measured with 1 µF load capacitance at the end of 1 m shielded cable. PXIe-4150 configured for normal transient response.

¹⁰ Measured between HI and LO terminals at the module output connector.

¹¹ Channel I/O pins include the HI, LO, HI Sense and LO Sense terminals. The Shield GND terminals of the output connector are connected to chassis ground and not considered channel I/O pins.

¹² Channel I/O pins include the HI, LO, HI Sense and LO Sense terminals. The Shield GND terminals of the output connector are connected to chassis ground and not considered channel I/O pins.

¹³ When sourcing while measuring, both the Source Delay and Aperture Time affect the sampling rate. When taking a measure record, only the Aperture Time affects the sampling rate.

¹⁴ As the Source Delay is adjusted, or if advanced sequencing is used, maximum update rates vary.

¹⁵ Not all chassis can achieve this ambient temperature range. Refer to PXI chassis specifications to determine the ambient temperature ranges your chassis can achieve.

¹⁶ Max ambient temperature deratings apply when operating the 10 A range above certain current levels. Refer to Instrument Capabilities section of the specifications for additional detail.