8-Channel Voltage Input High Speed USB Data Acquisition Modules |
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16-Bit High-Speed USB Devices
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Acquisition Rates Ranging From 250 kS/s to 500 kS/s
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8 Differential (DIFF) or 16 Single-Ended (SE) Analog Inputs (Software Selectable)
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Up to 2 Analog Outputs
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8 Digital I/O Lines
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Two 32-Bit Counter Input Channels
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One Timer Output Channel
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TracerDAQ® Software Included for Acquiring and Displaying Data and Generating Signals
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Universal Library Includes Support for Visual Studio® and Visual Studio.NET, Including Examples for Visual C++®, Visual C#®, Visual Basic®, and Visual Basic® .NET
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Comprehensive Drivers for DASYLab® and NI LabVIEW™
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InstaCal Software Utility for Installing, Calibrating, and Testing
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Supported Operating Systems: Windows® XP SP2 (32-bit only) and VISTA/7/8 (32-bit and 64-bit)
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View related products - USB, RS232, RS485 and Ethernet Data Acquisition Systems
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The OM-USB-1608G Series devices are low-cost, high-speed, analog
and digital I/O USB devices. All of these devices offer up to eight
differential (DIFF) or 16 single-ended (SE) analog inputs, up to eight digital
I/O channels, two counter inputs, and one timer output.
The OM-USB-1608GX-2AO offers two, 16-bit analog output channels
with DAC rates up to 500 kS/s. Everything you need to begin
acquiring, viewing, and storing data is included with each
OM-USB-1608G Series device, including comprehensive
software support.
Analog Input
OM-USB-1608G Series devices provide 16-bit analog inputs that
are software-selectable as 16 SE or eight DIFF inputs. These devices also
support input ranges of ±10V, ±5V, ±2V, and ±1V that are software-selectable
per channel
Analog Output
(OM-USB-1608GX-2AO only) The OM-USB-1608GX-2AO has two
16-bit analog outputs. Both outputs can be updated at a rate of 250 kS/s
per channel; one output can be updated at a rate of 500 kS/s. The
output range is fixed at ±10V. The outputs default to 0V when the host
PC is shut down or suspended, or when a reset command is issued to
the device.
Trigger Input
OM-USB-1608G Series devices have an external digital trigger input. The
trigger mode is software-selectable for edge- or level sensitive mode.
You can configure edge-sensitive mode for either rising or falling edge.
In level sensitive mode, you can configure for either high or low level.
The default setting at power up is edge-sensitive, rising edge.
Retrigger Mode:
In retrigger mode, you can set up repetitive analog
input trigger events. The trigger is automatically re-armed after it is
activated. Use software to set the A/D trigger count (the number of samples
you want per trigger).
Digital I/O
Eight bidirectional digital I/O connections are included with
OM-USB-1608G Series devices. Each digital channel is individually
configurable for input or output. The digital I/O terminals can detect the
state of any TTL-level input. You can configure for pull-up (+5V) or pulldown
(0V) through a jumper.
Counter Input
Each OM-USB-1608G Series device includes two 32-bit event counters
for counting TTL pulses. The counters accept frequency inputs of
up to 20 MHz.
Timer Output
OM-USB-1608G Series devices have a PWM timer output that
can generate a pulse output with a programmable frequency in the
range of 0.0149 Hz to 32 MHz. The timer output parameters are
software-selectable.
External Clock I/O
OM-USB-1608G Series devices provide one external clock input
and one external clock output for the analog inputs. The
OM-USB-1608GX-2AO also has one external clock input and
one external clock output for the analog outputs.
Software
The OM-USB-1608G modules ship with an impressive array of software,
including the new TracerDAQ®, a fullfeatured, 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 VIs and example programs compatible with 32-bit and 64-bit
LabVIEW v8.5 through 2012) and InstaCalTM 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.
The OM-USB-1608G 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 and is available as a purchased upgrade
(SWD-TRACERDAQ-PRO). A comparison
of some of the features included in
TracerDAQ vs TracerDAQ PRO is
shown on the PDF.
Specifications
Analog Input
A/D Converter Type: Successive approximation
ADC Resolution: 16-bits
Number of Channels: 8 DIFF, 16 SE; software-selectable
Input Voltage Range: ±10V, ±5V,
±2V, ±1V; software-selectable per channel
Absolute Maximum Input Voltage
CHx Relative to AGND: ±25V
maximum (power on); ±15V maximum (power off)
Input Impedance: 1 GΩ (power on); 820 Ω (power off)
Input Bias Current: ±10 nA
Input Bandwidth
All Input Ranges, Small Signal (-3 dB)
OM-USB-1608G: 750 kHz
OM-USB-1608GX and OM-USB-1608GX-2AO: 870 kHz
Input Capacitance: 60 pf
Maximum Working Voltage (Signal + Common Mode):
±10.2 V maximum relative to AGND
Common Mode Rejection Ratio fIN = 60 Hz,
All Input Ranges: 86 dB
Crosstalk
Adjacent Differential Mode Channels, DC to 100 kHz:
-75 dB
Input Coupling: DC
Sampling Rate (Software-Selectable)
OM-USB-1608G: 0.0149 Hz to 250 kHz
OM-USB-1608GX and OM-USB-1608GX-2AO:
0.0149 Hz to 500 kHz
Trigger Source: TRIG (refer to External Trigger section)
Sample Clock Source: Internal A/D clock or external A/D clock
(AICKI terminal)
Burst Mode: Software-selectable using the internal A/D clock; always
enabled
when using the external clock (AICKI terminal)
OM-USB-1608G: 4 µs
OM-USB-1608GX and OM-USB-1608GX-2AO: 2 µs
Throughput
Software Paced: 33 to 4000 S/s typical, system dependent
Hardware Paced
OM-USB-1608G: 250 kS/s maximum
OM-USB-1608GX and OM-USB-1608GX-2AO:
500 kS/s maximum
Channel Gain Queue: Up to 16 elements; software-selectable
range for each channel
Warm-up Time: 15 minutes minimum
Analog Output
(OM-USB-1608GX-2AO only)
Number of Channels: 2 (leave unused AOUTx output channels
disconnected)
Resolution: 16-bits
Output Range: ±10V (calibrated)
Output Transient
Host computer is reset, powered on, suspended, or a reset
command is issued to the device.
Duration: 500 µs
Amplitude: 2V pk-pk
Powered Off
Duration: 10 ms
Amplitude: 7V peak
Differential Non-Linearity: ±0.25 LSB typ; ±1 LSB maximum
Output Current
AOUTx: ±3.5 mA maximum
Output Short-Circuit Protection
AOUTx Connected to AGND: Unlimited duration
Output Coupling: DC
Power On and Reset State
DACs Cleared to Zero-Scale:
0V, ±50 mV (AOUTx defaults to 0V whenever the host computer
is reset, powered on, suspended,
or a reset command
is issued to the device)
Output Noise: 30 µVrms
Sample Clock Source: Internal D/A
clock or external D/A clock (AOCKI terminal)
Output Update Rate: 500 kHz/number of channels in scan
Settling Time
To Rated Accuracy, 10V Step: 40 µs
Slew Rate: 9 V/µs
Throughput
Software Paced: 33 S/s to 4000 S/s typical, system-dependent
Hardware Paced: 500 kS/s maximum, system-dependent
Analog Input/Output Calibration
Recommended Warm-Up Time: 15 minutes minimum
Calibration Method: Self-calibration (firmware)
Calibration Interval: 1 year (factory calibration)
AI Calibration Reference
+5V, ±2.5 mV maximum (actual measured values stored in
EEPROM)
Tempco: 5 ppm/°C maximum
Long Term Stability: 15 ppm/1000 hours
AOUTx Calibration Procedure
(OM-USB-1608GX-2AO)
The analog output terminals are internally routed to the analog input
circuit. For best calibration results, disconnect any AOUTx connections
at the terminal block prior to performing AOUT calibration.
Digital Input/Output
Digital Type: CMOS
Number of I/O: 8
Configuration: Each bit may be configured as input (power on
default) or output
Pull-Up Configuration: The port has 47 kΩ resistors configurable as
pull-ups or pull-downs (default)
via internal jumper (W1)
Digital I/O Transfer Rate (System-Paced):
33 to 8000 port reads/writes or single bit reads/writes
per second typ, system dependent
Input High Voltage: 2.0V minimum, 5.5V absolute maximum
Input Low Voltage: 0.8V maximum, -0.5V absolute minimum,
0V recommended minimum
Output High Voltage: 4.4V minimum (IOH = -50 µA),
3.76V minimum (IOH = -2.5 mA)
Output Low Voltage: 0.1V maximum (IOL = 50 µA),
0.44V maximum (IOL = 2.5 mA)
Output Current: ±2.5 mA maximum
External Trigger
Trigger Source: TRIG input
Trigger Mode: Software configurable for edge or level
sensitive, rising or falling edge, high or low level. Power on default
is edge sensitive, rising edge.
Trigger Latency: 1 µs + 1 clock cycle maximum
Trigger Pulse Width: 100 ns minimum
Input Type: Schmitt trigger, 33 Ω series resistor and 49.9 kΩ
pull-down to ground
Schmitt Trigger Hysteresis: 0.4V to 1.2V
Input High Voltage: 2.2V minimum, 5.5V absolute maximum
Input Low Voltage: 1.5V maximum, -0.5V absolute minimum, 0V
recommended minimum
External Clock Input/Output
Terminal Names
OM-USB-1608G and OM-USB-1608GX: AICKI, AICKO,
(OM-USB-1608GX-2AO): AOCKI, AOCKO
Terminal Types
AxCKI: Input, active on rising edge
AxCKO: Output, power on default is 0V, active on rising edge
Terminal Descriptions
AxCKI: Receives sampling clock from external source
AxCKO: Outputs the internal sampling clock (D/A or A/D clock) or the pulse generated from AxCKI when in external clock mode.
Input Clock Rate
OM-USB-1608G: 250 kHz maximum
OM-USB-1608GX and OM-USB-1608GX-2AO: 500 kHz maximum
Clock Pulse Width
AxCKI: 400 ns minimum
AxCKO: 400 ns minimum
Input Type: Schmitt trigger, 33 Ω series resistor, 47 kΩ pull-down to ground
Schmitt Trigger Hysteresis: 0.4V to 1.2V
Input High Voltage: 2.2V minimum, 5.5V absolute maximum
Input Low Voltage: 1.5V maximum, -0.5V absolute minimum, 0V
recommended minimum
Output High Voltage: 4.4V minimum (IOH = -50 µA),
3.76V minimum (IOH = -2.5 mA)
Output Low Voltage: 0.1V maximum (IOL = 50 µA),
0.44V maximum (IOL = 2.5 mA)
Output Current: ±2.5 mA maximum
Counter
Terminal Names: CTR0, CTR1
Number of Channels: 2 channels
Resolution: 32-bit
Counter Type: Event counter
Input Type: Schmitt trigger, 33 Ω
series resistor, 47 kΩ pull-down to ground
Input Source: CTR0 (terminal 52) CTR1 (terminal 51)
Counter Read/Writes Rates (Software-Paced):
33 to 8000 reads/writes per second typical,
system dependent
Input High Voltage: 2.2V minimum, 5.5V maximum
Input Low Voltage: 1.5V maximum, -0.5V minimum
Schmitt Trigger Hysteresis: 0.4V minimum, 1.2V maximum
Input Frequency: 20 MHz, maximum
High Pulse Width: 25 ns, minimum
Low Pulse Width: 25 ns, minimum
Timer Output
Timer Terminal Name: TMR
Timer Type: PWM output with count, period, delay, and pulse
width registers
Output Value: Default state is idle low with pulses high, software selectable output invert
Internal Clock Frequency: 64 MHz
Register Widths: 32-bit
High Pulse Width: 15.625 ns minimum
Low Pulse Width: 15.625 ns minimum
Output High Voltage: 4.4V minimum (IOH = -50 µA), 3.76V minimum (IOH = -2.5 mA)
Output Low Voltage: 0.1V maximum (IOL = 50 µA), 0.44V
maximum (IOL = 2.5 mA)
Output Current: ±2.5 mA maximum
Memory
Data FIFO: 4 kS analog input/2 kS analog output
Non-Volatile Memory: 32 KB (28 KB firmware storage, 4 KB
calibration/user data)
Power
Supply Current
This is the total quiescent current requirement for the device that
includes up to 10 mA for the Status LED. This does not include any
potential loading of the digital I/O bits, +5V terminal, or the AOUTx
outputs (OM-USB-1608GX-2AO only)
Quiescent Current
OM-USB-1608G and OM-USB-1608GX: 230 mA
OM-USB-1608GX-2AO: 260 mA
+5V User Output Voltage Range (Available at Terminal 42):
4.9V minimum to 5.1V maximum
+5V User Output Current
(Available at Terminal 42):
10 mA maximum
Environmental
Operating Temperature Range:
0 to 55°C (32 to 131°F) maximum
Storage Temperature Range:
-40 to 85°C (-40 to 185°F) maximum
Humidity: 0 to 90% RH non-condensing max
Mechanical
Dimensions:
127 L × 89.9 W × 35.6 H mm (5.00 × 3.53 × 1.40")
Weight: 160 g (0.35 lb)
USB Cable: 3 m (9.84") maximum
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† Price are shown in RMB.
Note: Comes complete with a 1.8 m (6') USB cable, software and operator’s manual on CD.
Ordering Example: (1) OM-USB-1608G 16-channel, 250 kS/s USB data acquisition module with two 32-bit counter inputs, one timer output and eight DIO lines, ¥4,145.00
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Keywords:8-Channel Voltage Input High Speed USB Data Acquisition Modules
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