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OM-USB-1608G 16-Channel Voltage Input High Speed USB Data Acquisition Modules

8-Channel Voltage Input High Speed USB Data Acquisition Modules

Have questions? We're here to help!
Have questions? We're here to help!

 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
• 16-Bit High-Speed USB Devices
• Acquisition Rates Ranging From 250 kS/s to 500 kS/s
• 8 Differential (DIFF) or 16 Single-Ended (SE) Analog Inputs (Software Selectable)
• Up to 2 Analog Outputs
Warm-up Time15 minutes minimum
Analog Output
Output CouplingDC
Power On and Reset State
DACs Cleared to Zero-Scale0V, ±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 Noise30 µVrms
Sample Clock SourceInternal D/A clock or external D/A clock (AOCKI terminal)
Output Update Rate500 kHz/number of channels in scan
Settling Time
To Rated Accuracy, 10V Step40 µs
Slew Rate9 V/µs
Throughput
Software Paced33 S/s to 4000 S/s typical, system-dependent
Hardware Paced500 kS/s maximum, system-dependent
Analog Input/Output Calibration
Recommended Warm-Up Time15 minutes minimum
Calibration MethodSelf-calibration (firmware)
Calibration Interval1 year (factory calibration)
AI Calibration Reference+5V, ±2.5 mV maximum (actual measured values stored in EEPROM)
Tempco5 ppm/°C maximum
Long Term Stability15 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 TypeCMOS
Number of I/O8
ConfigurationEach bit may be configured as input (power on default) or output
Pull-Up ConfigurationThe port has 47 k? 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 Voltage2.0V minimum, 5.5V absolute maximum
Input Low Voltage0.8V maximum, -0.5V absolute minimum, 0V recommended minimum
Output High Voltage4.4V minimum (IOH = -50 µA), 3.76V minimum (IOH = -2.5 mA)
Output Low Voltage0.1V maximum (IOL = 50 µA), 0.44V maximum (IOL = 2.5 mA)
Output Current±2.5 mA maximum
External Trigger
Trigger SourceTRIG input
Trigger ModeSoftware configurable for edge or level sensitive, rising or falling edge, high or low level. Power on default is edge sensitive, rising edge.
Trigger Latency1 µs + 1 clock cycle maximum
Trigger Pulse Width100 ns minimum
Input TypeSchmitt trigger, 33 ? series resistor and 49.9 k? pull-down to ground
Schmitt Trigger Hysteresis0.4V to 1.2V
Input High Voltage2.2V minimum, 5.5V absolute maximum
Analog Input
A/D Converter TypeSuccessive approximation
ADC Resolution16-bits
Number of Channels8 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 Impedance1 G? (power on); 820 ? (power off)
Input Bias Current±10 nA
Input Bandwith
All Input Ranges, Small Signal (-3 dB)
OM-USB-1608G750 kHz
OM-USB-1608GX and OM-USB-1608GX-2A0870 kHz
Input Capacitance60 pf
Maximum Working Voltage (Signal + Common Mode)±10.2 V maximum relative to AGND
Common Mode Rejection fIN = 60 Hz, All Input Ranges86 dB
Crosstalk
Adjacent Differential Mode Channels, DC to 100 kHz-75 dB
Input CouplingDC
Sampling Rate ( Software-Selectable)
OM-USB-1608G0.0149 Hz to 250 kHz
OM-USB-1608GX and OM-USB-1608GX-2AO0.0149 Hz to 500 kHz
Trigger SourceTRIG (refer to External Trigger section)
Sample Clock SourceInternal A/D clock or external A/D clock (AICKI terminal)
Burst ModeSoftware-selectable using the internal A/D clock; always enabled
when using the external clock (AICKI terminal)
OM-USB-1608G4 µs
OM-USB-1608GX and OM-USB-1608GX-2AO2 µs
Throughput
Software Paced33 to 4000 S/s typical, system dependent
Hardware Paced
OM-USB-1608G250 kS/s maximum
OM-USB-1608GX and OM-USB-1608GX-2AO500 kS/s maximum
Channel Gain QueueUp to 16 elements; software-selectable range for each channel
(OM-USB-1608GX-2AO only)
Number of Channels2 (leave unused AOUTx output channels disconnected)
Resolution16-bits
Output Range±10V (calibrated)
Output TransientHost computer is reset, powered on, suspended, or a reset command is issued to the device.
DurationHost computer is reset, powered on, suspended, or a reset command is issued to the device.
Amplitude2V pk-pk
Powered Off
Duration10 ms
Amplitude7V 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 AGNDUnlimited duration
Input Low Voltage1.5V maximum, -0.5V absolute minimum, 0V recommended minimum
External Clock Input/Output
Terminal Names
OM-USB-1608G and OM-USB-1608GXAICKI, AICKO,
(OM-USB-1608GX-2AO)AOCKI, AOCKO
Terminal Types
AxCKIInput, active on rising edge
AxCKOOutput, power on default is 0V, active on rising edge
Terminal Descriptions
  • Thumbnail of document Data Sheet - OM-USB-1608G 16-Channel Voltage Input High Speed USB Data Acquisition Modules
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    Data Sheet - OM-USB-1608G 16-Channel Voltage Input High Speed USB Data Acquisition Modules

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  • Thumbnail of document Manual - OM-USB-1608G 16-Channel Voltage Input High Speed USB Data Acquisition Modules
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    Manual - OM-USB-1608G 16-Channel Voltage Input High Speed USB Data Acquisition Modules

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