National Instruments 9269E User manual

OPERATING INSTRUCTIONS AND SPECIFICATIONS
NI 9269E
4-Channel, ±10 V, 16-Bit, Simultaneous, Channel-
to-Channel Isolated Analog Voltage Output Module

NI 9269E Operating Instructions and Specifications 2 ni.com
This document describes how to use the National Instruments 9269E
and includes dimensions, terminal assignments, and specifications for
the NI 9269E. Visit ni.com/info and enter rdsoftwareversion
to determine which software you need for the modules you are using.
For information about installing, configuring, and programming the
system, refer to the system documentation. Visit ni.com/info and
enter cseriesdoc for information about C Series documentation.
Caution National Instruments makes no electromagnetic
compatibility (EMC) or CE marking compliance claims
for the NI 9269E. The end-product supplier is responsible
for conformity to any and all compliance requirements.
Caution The NI 9269E must be installed inside a suitable
enclosure prior to use. Hazardous voltages may be present.

© National Instruments Corp. 3 NI 9269E Operating Instructions and Specifications
NI 9269E Dimensions
The following figure shows the dimensions of the NI 9269E.
Figure 1. NI 9269E Dimensions in Millimeters (Inches)
0.0 (0.00)
26.7 (1.05) 58.4 (2.30) 66.0 (2.60)
73.4 (2.89)
0.0 (0.00)

NI 9269E Operating Instructions and Specifications 4 ni.com
Connecting the NI 9269E
The NI 9269E has four 2-terminal detachable screw-terminal
connectors that provide connections for 4 analog output channels.
Figure 2. NI 9269E Terminal Assignments
AO0+
AO0–
AO1+
AO1–
AO2+
AO2–
AO3+
AO3–
0
1
0
1
0
1
0
1

© National Instruments Corp. 5 NI 9269E Operating Instructions and Specifications
You can connect a load to each channel of the NI 9269E. Connect
the positive lead of the load to the AO+ terminal. Connect the
ground of the load to the corresponding AO– terminal. Refer to
Figure 3 for an illustration of how to connect a load to the
NI 9269E.
Figure 3. Connecting a Load to the NI 9269E
Note You must use 2-wire ferrules to create a secure
connection when connecting more than one wire to a
single terminal on the NI 9269E.
The analog output channels are floating with respect to earth
ground and each other. Each channel has a digital-to-analog
converter (DAC) that produces a voltage signal. Each channel
provides an independent signal path, enabling you to update all
AO–
AO+
Load
NI 9269E

NI 9269E Operating Instructions and Specifications 6 ni.com
four channels simultaneously. Each channel also has overvoltage
and short-circuit protection. Refer to the Specifications section
for more information about the overvoltage and short-circuit
protection. Refer to Figure 4 for an illustration of the output
circuitry for one channel of the NI 9269E.
Figure 4. Output Circuitry for One Channel of the NI 9269E
When the module powers on, the channels output the startup
voltage. Refer to the Specifications section for more information
about startup voltage. Refer to the software help for information
about configuring startup output states in software. Visit
ni.com/info and enter cseriesdoc for information about
C Series documentation.
AO+
NI 9269E
Amp
Isolated
DAC
Overvoltage/
Short-Circuit
Protection AO–

© National Instruments Corp. 7 NI 9269E Operating Instructions and Specifications
Increasing Output Voltage Range
Each channel of the NI 9269E has a nominal output voltage range
of ±10 V and can drive up to ±10 mA of current. The total output
current of all channels is limited to ±20 mA. For example, if the
output current of AO0 is ±10 mA, the output current of
AO<1, 2, 3> is limited to ±10 mA total or ±3.33 mA each.
If you want to increase the nominal output voltage range, you can
cascade up to four output channels for a maximum of ±40 V
nominal. For example, if you want two channels with a nominal
output voltage range of ±20 V each, connect AO<0, 1> and
AO<2, 3> as shown in Figure 5. The output current of the cascaded
channels flows across two channels, limiting the total output
current to ±10 mA.

NI 9269E Operating Instructions and Specifications 8 ni.com
Figure 5. Increasing the Output Voltage Range of the NI 9269E
Cascading more than four output channels of multiple NI 9269E
modules violates the electrical safety and overvoltage protection
ratings.
Because the NI 9269E outputs can source and sink current, it is
not possible to increase the current drive by connecting output
channels in parallel.
AO<2, 3>–
NI 9269E
AO<2, 3>+
AO<0, 1>–
AO<0, 1>+
AO0+
AO0–
AO1+
AO1–
AO2+
AO2–
AO3+
AO3–
Load
Load

© National Instruments Corp. 9 NI 9269E Operating Instructions and Specifications
Sleep Mode
This module supports a low-power sleep mode. Support for sleep
mode at the system level depends on the chassis that the module is
plugged into. Refer to the chassis manual for information about
support for sleep mode. If the chassis supports sleep mode, refer to
the software help for information about enabling sleep mode. Visit
ni.com/info and enter cseriesdoc for information about
C Series documentation.
Typically, when a system is in sleep mode, you cannot
communicate with the modules. In sleep mode, the system
consumes minimal power and may dissipate less heat than it does
in normal mode. Refer to the Specifications section for more
information about power consumption and thermal dissipation.

NI 9269E Operating Instructions and Specifications 10 ni.com
Specifications
The following specifications are typical for the range –40 to 85 °C
internal to any enclosures unless otherwise noted. All voltages are
relative to the AO– signal on each channel unless otherwise noted.
Output Characteristics
Number of channels.......................... 4 analog output channels
DAC resolution ................................. 16 bits
Type of DAC ..................................... R-2R
Power-on output state ....................... High impedance
Startup voltage1................................. 0 V
Power-down output state2................. High impedance
1 When the output stage powers on, a glitch occurs for 5 μs peaking at –900 mV.
2 When the module powers down, a glitch occurs for 20 μs peaking at –600 mV.

© National Instruments Corp. 11 NI 9269E Operating Instructions and Specifications
Output voltage range1
Nominal ...................................... ±10 V
Minimum .................................... ±10.38 V
Typical ........................................ ±10.47 V
Maximum ................................... ±10.56 V
Current drive ..................................... ±20 mA all channels max;
±10 mA per channel typ
Output impedance............................. 100 mΩ
1 Refer to the Increasing Output Voltage Range section for the cascaded nominal
output voltage range and current drive.

NI 9269E Operating Instructions and Specifications 12 ni.com
Accuracy
Stability
Gain drift .................................... 14 ppm/°C
Offset drift .................................. 80 μV/°C
Protection
Overvoltage ................................ ±30 V
Short-circuit................................ Indefinitely
Measurement Conditions
Percent of
Reading
(Gain Error)
Percent of
Range*
(Offset Error)
Calibrated, max (–40 to 85 °C) 0.17% 0.15%
Calibrated, typ (25 °C, ±5 °C) 0.05% 0.01%
Uncalibrated, max (–40 to 85 °C) 0.44% 0.37%
Uncalibrated, typ (25 °C, ±5 °C) 0.14% 0.05%
*Range equals 10.47 V

© National Instruments Corp. 13 NI 9269E Operating Instructions and Specifications
Update time
Noise................................................. 300 μVrms
Slew rate ........................................... 7 V/μs
Crosstalk
Channel-to-channel .................... 100 dB
Common-mode voltage .............. 120 dB
Number of
Channels
Update Time for
NI cRIO-9151 R Series
Expansion Chassis
Update Time for
All Other Chassis
13.5 μs min 3 μs min
26.5 μs min 5 μs min
39.3 μs min 7.5 μs min
412.3 μs min 9.7 μs min

NI 9269E Operating Instructions and Specifications 14 ni.com
Settling time
100 pF load, to 1 LSB
Full-scale step ...................... 20 μs
1 V step ................................ 10 μs
0.1 V step ............................. 10 μs
1 kΩ || 100 pF load, to 4 LSB
Full-scale step ...................... 20 μs
Capacitive drive ................................ 1,500 pF max
Monotonicity..................................... 16 bits
DNL .................................................. ±1 LSB max
INL (best fit) ..................................... ±2 LSBs max
MTBF ............................................... Contact NI for Bellcore
MTBF or MIL-HDBK-217F
specifications.
Power Requirements
Power consumption from chassis
Active mode ............................... 1 W max
Sleep mode ................................. 120 μW max

© National Instruments Corp. 15 NI 9269E Operating Instructions and Specifications
Thermal dissipation (at 85 °C)
Active mode ............................... 1.4 W max
Sleep mode ................................. 77 mW max
Physical Characteristics
Use a dry, low-velocity stream of air to clean the module. If
needed, use a soft-bristle brush for cleaning around components.
Note For two-dimensional drawings and
three-dimensional models of the C Series module and
connectors, visit ni.com/dimensions and search by
module number.
Screw-terminal wiring ...................... 12 to 24 AWG copper
conductor wire with 10 mm
(0.39 in.) of insulation
stripped from the end
Torque for screw terminals ............... 0.5 to 0.6 N · m
(4.4 to 5.3 lb · in.)
Ferrules ............................................. 0.25 mm2to 0.5 mm2
Weight............................................... 47 g (1.7 oz)

NI 9269E Operating Instructions and Specifications 16 ni.com
Safety
Isolation Voltages
Connect only voltages that are within the following limits.
Channel-to-channel
Continuous ................................. 250 Vrms,
Measurement Category II,
(Basic insulation)
Withstand.................................... 1,390 Vrms, verified by a 5 s
dielectric withstand test
Channel-to-earth ground
Continuous ................................. 250 Vrms,
Measurement Category II,
(Double insulation)
Withstand.................................... 2,300 Vrms, verified by a 5 s
dielectric withstand test
Measurement Category II is for measurements performed on
circuits directly connected to the electrical distribution system.
This category refers to local-level electrical distribution, such as
that provided by a standard wall outlet, for example, 115 V for U.S.
or 230 V for Europe.

© National Instruments Corp. 17 NI 9269E Operating Instructions and Specifications
Caution Do not connect the NI 9269E to signals or use
for measurements within Measurement Categories III
or IV.
Safety Standards
This product meets the requirements of the following standards of
safety for electrical equipment for measurement, control, and
laboratory use when installed in a suitable enclosure:
• IEC 61010-1, EN 61010-1
• UL 61010-1, CSA 61010-1
Note For UL and other safety certifications, refer to the
product label or the Online Product Certification section.
Online Product Certification
Refer to the product Declaration of Conformity (DoC) for
additional regulatory compliance information. To obtain product
certifications and the DoC for this product, visit ni.com/
certification, search by module number or product line, and
click the appropriate link in the Certification column.

NI 9269E Operating Instructions and Specifications 18 ni.com
Environmental
National Instruments C Series modules are intended for indoor use
only but may be used outdoors if installed in a suitable enclosure.
Refer to the manual for the chassis you are using for more
information about meeting these specifications.
Operating temperature
(IEC 60068-2-1, IEC 60068-2-2) ..... –40 to 85 °C
Storage temperature
(IEC 60068-2-1, IEC 60068-2-2) ..... –40 to 85 °C
Operating humidity
(IEC 60068-2-56).............................. 10 to 90% RH,
noncondensing
Storage humidity
(IEC 60068-2-56).............................. 5 to 95% RH,
noncondensing
Maximum altitude............................. 2,000 m
Pollution Degree ............................... 2

© National Instruments Corp. 19 NI 9269E Operating Instructions and Specifications
Environmental Management
National Instruments is committed to designing and manufacturing
products in an environmentally responsible manner. NI recognizes
that eliminating certain hazardous substances from our products is
beneficial to the environment and to NI customers.
For additional environmental information, refer to the NI and the
Environment Web page at ni.com/environment. This page
contains the environmental regulations and directives with which
NI complies, as well as other environmental information not
included in this document.
Waste Electrical and Electronic Equipment (WEEE)
EU Customers At the end of the product life cycle,
all products must be sent to a WEEE recycling center.
For more information about WEEE recycling centers,
National Instruments WEEE initiatives, and compliance
with WEEE Directive 2002/96/EC on Waste Electrical
and Electronic Equipment, visit ni.com/
environment/weee.