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8-Channel Voltage Input USB Data Acquisition Modules
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Low Cost, Multifunction USB Devices with 4 Differential or 8 Single-Ended Analog Inputs
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Provides 12-Bit (OM-USB-1208FS) or 14-Bit (OM-USB-1408FS) Analog Input Resolution
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Maximum Sampling Rates Ranging from 1.2 kS/s to 50 kS/s
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2 Analog Outputs
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16 Digital I/O Lines
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One 32-Bit Counter Input Channel
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No External Power Required
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View related products - USB, RS232, RS485 and Ethernet Data Acquisition Systems
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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
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 PDF.
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 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.
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 channel gain
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, software-selectable 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 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
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
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)
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
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)
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† All dollar amounts on this site are shown in Singapore currency.
Note: Comes complete with a 1.8 m (6') USB cable, TracerDAQ software and user manual on CD.
Ordering Example: (1) SWD-TRACERDAQ-PRO TracerDAQ Pro software, $500.00
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Related Links -
Manual, Related Products
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Product Manual |
Download 12-Bit Multifunction USB Data Acquisition Module |
Download 14-Bit Multifunction USB Data Acquisition Module |
Related Products |
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OM-USB-1208HS Series: |
Discontinued - 8-Channel High Speed Voltage Input USB Data Acquisition Modules |
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OMB-DAQ-2408 Series: |
24-Bit Multifunction USB Data Acquisition Modules for Temperature and Voltage Measurement |
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OMB-DAQ-2416: |
High Performance Multi-Function I/O USB Data Acquisition Modules |
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