Specs
8-Channel Voltage Input USB Data Acquisition Modules
OM-USB-1208FS,
OM-USB-1408FS
U Low Cost, Multifunction
USB Devices with 4 Differential
or 8 Single-Ended Analog Inputs
U Provides 12-Bit (OM-USB-1208FS)
or 14-Bit (OM-USB-1408FS) Analog
Input Resolution
U Maximum Sampling Rates Ranging
from 1.2 kS/s to 50 kS/s
U 2 Analog Outputs
U 16 Digital I/O Lines
U One 32-Bit Counter Input Channel
U No External Power Required
The OM-USB-1208FS and OM-USB-1408FS data
acquisition modules offer four differential (DIFF) or eight
single-ended (SE) analog inputs, two analog outputs,
16 digital I/O channels, and one counter input.
These modules are USB 2.0 full speed voltage input
data acquisition modules (fully compatible with both
USB 1.1 and USB 2.0 ports). These are plug-and-play
modules which draw power from the USB cable - no
external power supply is required. All configurable
options (including individual channel ranges) are
software programmable, and the modules are fully
software calibrated.
Both modules feature eight analog voltage input
channels that are processed through a single A/D
converter. The analog inputs to the OM-USB-1208FS
are software configurable for either eight 11-bit
single-ended or four 12-bit differential inputs. The
analog inputs to the OM-USB-1408FS are software
configurable for either eight 13-bit single-ended or four
14-bit differential inputs.
These modules have one 32-bit counter channel. The
digital I/O channels are software programmable for
input or output. Both models have two 12-bit analog
outputs. The packaging for the OM-USB-1208FS and
OM-USB-1408FS ensures ease of use in a variety of
applications.
OM-USB-1208FS
shown actual size.
TracerDAQ Strip Chart.
TracerDAQ Pro Strip Chart
with Measurements.
The OM-USB-1208FS and OM-USB-1408FS data
acquisition modules are supplied with TracerDAQ
software which is a collection of four virtual instrument
applications used to graphically display and store input
data and generate output signals:
• Strip Chart—Log and graph values acquire from
analog inputs, digital inputs, temperature inputs
and counter inputs
• Oscilloscope—Display values acquired from
analog inputs
• Function Generator—Generate waveforms for
analog outputs
• Rate Generator—Generate waveforms for
counter outputs
TracerDAQ PRO is an enhanced version of TracerDAQ.
A comparison of some of the features included in
TracerDAQ vs TracerDAQ PRO is shown on the next
page.
1
Features Comparison
Strip Chart
Feature
TracerDAQ
Analog input, temperature input,
digital input, event counter
48
8
1 million
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Oscilloscope
Feature
TracerDAQ PRO
TracerDAQ
Channel Type
Analog input
Number of Channels2
Measurements Window No
Reference ChannelNo
Math ChannelNo
Function Generator
Feature
TracerDAQ
Analog input
4
Yes
Yes
Yes
TracerDAQ PRO
Channel Type
Analog output Analog output
Number of Channels1
16
Waveform Types
Sine
Sine, square, triangle, flat, pulse, ramp, random, arbitrary
Duty Cycle NoYes
Phase
NoYes
Gate Ratio NoYes
Rate MultiplierNo Yes
Sweep (Linear and Exponential)No
Yes
Rate Generator
Feature
TracerDAQ
Channel Type
Counter output
Number of Channels1
SOFTWARE
OM-USB-1208FS and OM-USB-1408FS modules ship
with an impressive array of software, including the new
TracerDAQ®, a full-featured, out-of-the-box data logging,
viewing, and analysis application. Driver support and
detailed example programs are included for Universal
Library programming libraries for Microsoft® Visual
Studio® programming languages, and other languages,
including DASYLab®, and ULx for NI LabVIEW®
(comprehensive library of Vls and example programs
compatible with 32-bit and 64-bit LabVIEW v8.5 through
2013) and InstaCal™ installation, calibration and
test utility - powerful solutions for programmers and
nonprogrammers alike. These modules operate under
2
TracerDAQ PRO
Channel Types
Analog input, temperature input, digital input, event counter
Number of Channels8
Number of Lanes2
Maximum Samples per Channel
32,000
Alarm ConditionsNo
Measurements Window No
Enter AnnotationsNo
Software TriggeringNo
Hardware TriggeringNo
Time-of-Day TriggeringNo
Linear ScalingNo
TracerDAQ PRO
Counter output
20
Microsoft Windows® XP (32-bit only) and VISTA/7/8
(32-bit and 64-bit) operating systems.
ANALOG INPUT
OM-USB 1208FS: These devices provide eight, 11-bit
single-ended analog inputs or four, 12-bit differential
analog inputs.
OM-USB 1408FS: These devices provide eight, 13-bit
single-ended analog inputs or four, 14-bit differential
analog inputs.
All devices support software selectable ranges that
provide inputs from ±1V to ±20V in a differential
configuration, and ±10V in a single-ended configuration.
OM-USB-1208FS/OM-USB-1408FS
Analog Inputs
Sampling Rate
Analog Outputs
Digital Output
Event Counters
OM-USB-1208FS
Model
8 SE/4 DIFF
50 kS/s max
2
±6.0 mA per Pin
1
OM-USB-1408FS
8 SE/4 DIFF
48 kS/s max
2
±6.0 mA per Pin
1
GENERAL INFORMATION
SAMPLING RATE: When scanning continuously to
computer memory (hardware-paced mode), the
OM-USB-1208FS can sample at a maximum of
50 kS/s, and the OM-USB-1408FS can sample at
a maximum of 48 kS/s.
CHANNEL-GAIN QUEUE
The channel-gain queue feature lets you configure a
list of channels and gains for each scan. Each channel
can have a different gain setting. The gain settings are
stored in a channel-gain queue list that is written to
local memory on the device.
The OM-USB-1208FS and OM-USB-1408FS channelgain queue can contain up to 16 channels listed in any
order.
ANALOG OUTPUT
The maximum analog output update rate for all
devices depends on several factors, including USB
port speed. Both devices offer two 12-bit analog
outputs with a range of 0V to 4.096V.
When updating continuously from computer memory
(hardware-paced mode), one analog output updates at
a maximum rate of 10 kS/s; two analog outputs update
simultaneously at a maximum rate of 5 kS/s each.
DIGITAL I/O
All devices provide 16 TTL-level digital I/O lines. Digital
I/O can be programmed on each 8-bit port (Port A and
Port B) for either input (default) or output.
EVENT COUNTER INPUT
Each device supports one 32-bit TTL-level counter that
accepts inputs up to 1 MHz.
SPECIFICATIONS
ANALOG INPUT
A/D Converter Type: Successive approximation
Channels: 8 single-ended (SE) or 4 differential (DIFF),
software programmable
Input Common-Mode Voltage Range for Linear
Operation:
SE Mode: CHx to GND, ±10V max
DIFF Mode: CHx to GND, -10V min, 20V max
Absolute Maximum Input Voltage: CHx to GND,
±28V max
Input Impedance: 122 kΩ
Ranges: Software selectable on a per-channel basis
SE Mode: ±10V
DIFF Mode: ±20V, ±10V, ±5V, ±4V, ±2.5V, ±2.0V,
±1.25V, ±1.0V
Throughput: Maximum throughput scanning to computer
memory depends on the computer being used.
Software Paced: 250 S/s typ, system‑dependent
Hardware Paced:
OM-USB‑1208FS: 50 kS/s
OM-USB‑1408FS: 48 kS/s
Channel Gain Queue: Up to 16 elements, softwareselectable channel and range
Resolution:
OM-USB-1208FS:
DIFF: 12 bits, no missing codes
SE: 11 bits
OM-USB-1408FS:
DIFF: 14 bits, no missing codes
SE: 13 bits
CAL Accuracy (OM-USB-1208FS Only):
CAL = 2.5 V, ±36.25 mV max
Integral Linearity Error
OM-USB-1208FS: ±1 least significant bit (LSB) typ
OM-USB‑1408FS: ±2 LSB typ
Differential Linearity Error: ±0.5 LSB typ
Repeatability: ±1 LSB typ
CAL Current (OM-USB-1208FS Only):
Source: 5 mA max
Sink: 20 μA min, 100 μA typ
2.5VREF Accuracy (OM-USB 1408FS Only):
±36.25 mV max
2.5VREF Output Current (OM-USB 1408FS Only):
Source: 5 mA max
Sink: 20 μA min, 100 μA typ
Trigger Source (Software-Selectable):
External Digital: TRIG_IN
Clock Source: Internal; External (SYNC), rising edge
triggered
Analog Input Accuracy: OM-USB-1208FS
Range
Accuracy (LSB)
Differential Mode
±20V
5.1
±10V
6.1
±5V
8.1
±4V
9.1
±2.5V
12.1
±2V
14.1
±1.25V
20.1
±1V
24.1
Single-Ended Mode
±10V
4.0
3
Analog Input Accuracy Components:
OM-USB-1208FS
Analog Input Accuracy: OM-USB-1408FS
Range
Absolute
Accuracy 25°C
Absolute Accuracy
0 to 50°C
Gain Error
% of
at Full
Offset
Range Reading Scale (mV) (mV)
Differential Mode
Differential Mode
±20V
±10.98 mV
±49.08 mV
±20V
0.2
40
9.766
49.766
±10V
±7.32 mV
±33.42 mV
±10V
0.2
20
9.766
29.766
±5V
±3.66 mV
±20.76 mV
±5V
0.2
10
9.766
19.766
±4V
±2.92 mV
±19.02 mV
±4V
0.2
8
9.766
17.766
0.2
5
9.766
14.766
±2.5V
±1.83 mV
±14.97 mV
±2.5V
±2V
±1.70 mV
±14.29 mV
±2V
0.2
4
9.766
13.766
±1.25V
±1.21 mV
±12.18 mV
±1.25V
0.2
2.5
9.766
12.266
±1V
±1.09 mV
±11.63 mV
±1V
0.2
2
9.766
11.766
Single-Ended Mode
Single-Ended Mode
±10V
±10.98 mV
±49.08 mV
±10V
Noise Performance: OM-USB-1208FS
Range
Typical Counts
Least Significant Bit‑
Root Mean Square
(LSBRMS)
0.2
20
19.531
Range
Typical Counts
Least Significant Bit‑
Root Mean Square
(LSBRMS)
Differential Mode
±20V
2
0.30
±20V
8
1.21
±10V
2
0.30
±10V
8
1.21
±5V
3
0.45
±5V
9
1.36
±4V
3
0.45
±4V
10
1.51
±2.5V
4
0.61
±2.5V
12
1.81
±2V
5
0.76
±2V
14
2.12
±1.25V
7
1.06
±1.25V
18
2.72
±1V
8
1.21
±1V
22
3.33
0.30
±10V
Single-Ended Mode
±10V
2
39.531
Noise Performance: OM-USB-1408FS
Differential Mode
Single-Ended Mode
ANALOG OUTPUT
Number of Channels: 2
Output Range: 0V to 4.096V, 1 mV per LSB
Resolution: 12 bits, 1 in 4096
Throughput: Maximum throughput scanning to
computer memory depends on the computer being used
Software Paced: 250 S/s single channel typ,
system‑dependent
Hardware Paced:
Single Channel: 10 kS/s
Dual Channel: 5 kS/s
4
Accuracy
at Full
Scale
(mV)
8.0
1.21
Power On and Reset Voltage
OM-USB‑1208FS: Initializes to 000h code
OM-USB-1408FS: 0V, ±20 mV typ, initializes to
000h code
Output Drive (Each D/A OUT): 15 mA
Slew Rate: 0.8V/μs typ
Accuracy (All Values are ±): 0V to 4.096V: 4.0 LSB
typ, 45.0 LSB max
Analog Output Accuracy Components
(All Values are ±): 0V to 4.096V
% of FSR: 0.1 typ, 0.9 max
Gain Error at Full Scale: 4.0 mV typ, 36.0 mV max
Offset: 1.0 mV typ, 9.0 mV max
Accuracy at Full Scale: 4.0 mV typ, 45.0 mV max
OM-USB-1408FS
shown actual size.
DIGITAL I/O
Digital Type: CMOS
Number of I/O: 16 (Port A0 through A7, Port B0
through B7)
Configuration: 2 banks of 8
Pull Up/Pull-Down Configuration: All pins pulled up
to 5V through 47 kΩ resistors (default); change to pulldown using internal user-configurable jumpers.
Input High Voltage: 2.0V min, 5.5V absolute max
Input Low Voltage: 0.8V max, -0.5V absolute min,
0V recommended min
Output High Voltage (IOH = -6.0 mA): 3.84V min
Output Low Voltage (IOL = 6.0 mA): 0.33V max
Power On and Reset State: Input
EXTERNAL TRIGGER
Trigger Source: External digital, TRIG_IN
Trigger Mode: Edge sensitive; software-selectable for
CMOS‑compatible rising or falling edge
Trigger Latency: 10 μs max
Trigger Pulse Width: 1 μs min
Input Type: Schmitt trigger, 47 kΩ pull-down to ground
Schmitt Trigger Hysteresis: 1.01V typ, 0.6V min,
1.5V max
Input High Voltage Threshold: 2.43V typ, 1.9V min,
3.1V max
Input High Voltage Limit: 5.5V absolute max
Input Low Voltage Threshold: 1.42V typ, 1.0V min,
2.0V max
Input Low Voltage Limit: -0.5V absolute min, 0V
recommended min
EXTERNAL CLOCK INPUT/OUTPUT
Pin Name: SYNC
Pin Type: Bidirectional
Direction (Software-Selectable):
Input (Default): Receives A/D clock from external
source; active on rising edge
Output: Outputs internal A/D clock; active on rising
edge
Input Clock Rate:
OM-USB-1208FS: 50 kHz, max
OM-USB-1408FS: 48 kHz, max
Clock Pulse Width:
Input Mode: 1 μs min
Output Mode: 5 μs min
Input Type: Schmitt trigger, 47 kΩ pull-down to ground
Schmitt Trigger Hysteresis: 1.01V typ, 0.6V min,
1.5V max
Input High Voltage Threshold: 2.43V typ, 1.9V min,
3.1V max
Input High Voltage Limit: 5.5V absolute max
Input Low Voltage Threshold: 1.42V typ, 1.0V min,
2.0V max
Input Low Voltage Limit: -0.5V absolute min,
0V recommended min
Output High Voltage: 4.4V min (IOH = –50 μA),
3.80V min (IOH = –8 mA)
Output Low Voltage: 0.1V max (IOL = 50 μA),
0.44V max (IOL = 8 mA)
5
COUNTER
Number of Channels: 1
Counter Type: Event counter
Pin name: CTR
Input Type: Schmitt trigger, 47 kΩ pull-down to ground
Input Source: CTR screw terminal
Resolution: 32 bits
Maximum Input Frequency: 1 MHz
High Pulse Width: 500 ns min
Low Pulse Width: 500 ns min
Schmidt Trigger Hysteresis: 1.01V typ, 0.6V min,
1.5V max
Input High Voltage Threshold: 2.43V typ, 1.9V min,
3.1V max
Input High Voltage Limit: 5.5V absolute max
Input Low Voltage Threshold: 1.42V typ, 1.0V min,
2.0V max
Input Low Voltage Limit: -0.5V absolute min,
0V recommended min
POWER
Supply Current: 80 mA (total current requirement;
includes up to 10 mA for the status LED)
+5V USB Power Available:
Connected to Self-Powered Hub: 4.5V min,
5.25V max
Connected to Bus-Powered Hub: 4.1V min,
5.25V max
Output Current (total amount of current that can
be sourced from the USB 5 V, analog outputs
and digital outputs):
Connected to Self-Powered Hub or Externally
Powered Root Port Hub: 420 mA max
Connected to Bus-Powered Hub: 20 mA max
NON-VOLATILE MEMORY
EEPROM: 1024 bytes
TracerDAQ Strip Chart.
TracerDAQ Pro Strip Chart
with Measurements.
GENERAL
Operating Temperature Range: 0 to 70°C
(32 to 158°F), 0 to 90% RH non-condensing
Storage Temperature Range: -40 to 70°C
(-40 to 158°F), 0 to 90% RH non-condensing
Communications: USB 2.0 Hi-speed mode
(480 Mbps) is recommended; otherwise
USB 1.1 full-speed mode (12 Mbps)
Microcontroller Type: High performance 32-bit RISC
Signal I/O Connector Type: Screw terminal
USB Cable Length: 3 m (9.84') max
Dimensions: 79 L x 82 W x 27 mm H
(3.10 x 3.20 x 1.05")
Weight: 91 g (3.2 oz)
OMEGACARESM extended warranty program is
available for models shown on this page. Ask
your sales representative for full details when
placing an order. OMEGACARESM covers parts,
Extended Warranty labor and equivalent loaners.
Program
SM
To Order
Model No.
Description
OM-USB-1208FS
12-bit voltage input USB data acquisition module (4 DE/8 SE analog input channels, 16 digital I/O,
1 counter, 2 analog outputs)
OM-USB-1408FS
14-bit voltage input USB data acquisition module (4 DE/8 SE analog input channels, 16 digital I/O,
1 counter, 2 analog outputs)
SWD-TRACERDAQ-PRO TracerDAQ Pro software
SWD-DASYLAB
DASYLab software
Comes complete with a 1.8 m (6') USB cable, TracerDAQ software and user manual on CD.
Ordering Example: OM-USB-1208FS 12-bit voltage input USB data acquisition module (4 DE/8 SE analog input channels, 16 digital I/O,
1 counter, 2 analog outputs) and OCW-1, OMEGACARESM extends standard 1-year warranty to a total of 2 years.
6
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