C Series Analog Input Modules
NI 9201, NI 921x, NI 9221, NI 923x
• Signal conditioning for high voltage
(±60 V), thermocouples, RTDs,
accelerometers, microphones,
strain gages, current inputs
• Advanced features such as smart TEDS
sensor capability, antialiasing filters,
open-thermocouple detection
• ±80 mV, ±10 V, or ±60 V analog
input ranges
• 12-, 16-, or 24-bit
(delta-sigma) resolution
• Up to 800 kS/s multiplexed or up to
100 kS/s simultaneous-sampling
analog-to-digital converter (ADC)
• Up to 32 channels per module
• Up to 2,300 V
rms
isolation (withstand),
up to 250 V
rms
isolation (continuous)
• NIST-traceable calibration certificate
for guaranteed accuracy
Model CompactRIO NI CompactDAQ
NI 9201
NI 9203
NI 9205
NI 9206
NI 9211
NI 9215
NI 9217
NI 9221
NI 9233
NI 9237
Signal Type
Voltage
Current
Voltage
CAT I Isolated
Voltage
Thermocouple
Voltage
RTD
Voltage
IEPE
Bridge
Channels
8
8
32 SE/16 DI
16 DI
4
4
4
8
4
4
Resolution
(bits)
12
16
16
16
24
16
24
12
24
24
Max Sampling
Rate (S/s)
500 k
200 k
250 k
250 k
15
100 k/ch
400
800 k
50 k/ch
50 k/ch
Signal
Input Ranges
±10 V
±20 mA, 0 to 20 mA
±10, ±5, ±1, ±0.2 V
±10, ±5, ±1, ±0.2 V
±80 mV
±10 V
0 to 400
Ω
±60 V
±5 V
±250 mV
Simultaneous Antialiasing
Isolation Connector Options
Sampling
Filters
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Screw Terminal, D-Sub
Screw Terminal
Spring Terminal, D-Sub
Spring Terminal
Screw Terminal
Screw Terminal, BNC
Screw Terminal
Screw Terminal, D-Sub
BNC
RJ50
Table 1. C Series Analog Input Modules Selection Guide
Overview
High-accuracy C Series analog input modules for National Instruments
CompactRIO and NI CompactDAQ provide high-performance measurements
for a wide variety of industrial, in-vehicle, and laboratory sensors and
signal types. Each module includes built-in signal conditioning and an
integrated connector with screw terminal or cable options for flexible
and low-cost signal wiring. All modules feature NI CompactRIO Extreme
Industrial Certifications and Ratings.
high-speed decision making for all C Series analog modules. For
instance, with CompactRIO, you can implement custom triggering for
any analog sensor type on a per-channel basis using the flexibility and
performance of the FPGA and the numerous arithmetic and comparision
function blocks built into NI LabVIEW FPGA.
Key Features
• High-accuracy, high-performance analog measurements for any
CompactRIO embedded system, R Series expansion chassis, or
NI CompactDAQ chassis
• Screw terminals, BNC, D-Sub, spring terminals, strain relief, high-
voltage, cable, solder cup backshell, and other connectivity options
• Available channel-to-earth ground double-isolation barrier for safety,
noise immunity, and high common-mode voltage range
• CompactRIO Extreme Industrial Certifications and Ratings
• Built-in signal conditioning for direct connection to sensors and
industrial devices
Visit
ni.com/compactrio
or
ni.com/compactdaq
for up-to-date
information on module availability, example programs, application notes,
and other developer tools.
System Compatibility
You can use NI C Series modules in multiple system types depending
on available software. See Table 1 for CompactRIO and NI CompactDAQ
module compatibility because not all modules work with both systems.
Many of the advanced features described apply only to reconfigurable
I/O systems and not to NI CompactDAQ.
Advanced Features
When used with CompactRIO, NI C Series analog input modules
connect directly to reconfigurable I/O (RIO) FPGA hardware to create
high-performance embedded systems. The reconfigurable FPGA
hardware within CompactRIO provides a variety of options for custom
timing, triggering, synchronization, filtering, signal processing, and
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