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16-Channel Voltage Input High Speed USB Data Acquisition Modules
8-Channel Voltage Input High Speed USB Data Acquisition Modules
Refer to this Item D8000-Series
- 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
OM-USB-1608GX Model Options
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Maximum Sample Rate (per sec)
Additional Features
Analog Input Type
Analog Input Class
Number of Analog Inputs
Analog Input Resolution
Input Range
Output Type
Number of Outputs
Output Range
Power
Digital I/O
Interface Protocol
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 G? (power on); 820 ? (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 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 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 ? series resistor and 49.9 k? 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 ? series resistor, 47 k? 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 ? series resistor, 47 k? 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
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 G? (power on); 820 ? (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 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 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 ? series resistor and 49.9 k? 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 ? series resistor, 47 k? 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 ? series resistor, 47 k? 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
