8 Channel High Speed Voltage Input USB Data Acquisition Module

The OM-USB-1208HS, OM-USB-1208HS-2AO and OM-USB-1208HS-4AO 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 stand-alone 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. All three OM-USB-1208HS modules provide 13-bit resolution, and 4 differential or 8 single-ended analog inputs. These modules support software programmable ranges from ±5 to ±20V in a differential configuration, and ±2.5 to ±10V, and 0 to 10V in a single-ended configuration. In software-paced mode, these modules can sample at a maximum of 4 kS/s. In hardwarepaced mode, they can sample at a maximum of 1 MS/s. The OM-USB-1208HS-2AO provides two 12-bit analog outputs, and the USB-1208HS-4AO provides four 12-bit analog outputs.

Both modules offer an output range of ±10V. Analog outputs update at a maximum rate of 5 kS/s in softwarepaced mode; in hardware-paced mode, each analog output updates at a maximum rate of 1 MS/s. On these modules, 16 digital I/O can be programmed on each individual bit as either inputs or outputs. Each module supports two 32-bit TTL-level counters that accept frequency inputs of up to 20 MHz. The packaging for the OM-USB-1208HS, OM-USB-1208HS-2AO and OM-USB-1208HS-4AO ensures ease of use in a variety of applications. The modules can easily be DIN-rail mounted for rack applications.

The OM-USB-1208HS, OM-USB-1208HS-2AO and OM-USB-1208HS-4AO 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 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-1208HS, OM-USB-1208HS-2AO and OM-USB-1208HS-4AO 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 feature included in TracerDAQ vs TracerDQ PRO is shown on the PDF.

SPECIFICATIONS
ANALOG INPUT
A/D Converter: Successive approximation type
Input Ranges: Software selectable per channel
  Differential: ±20V, ±10V, ±5V (the voltage level on each
individual AIN input is limited to ±14V)
  Single Ended: ±10V, ±5V, ±2.5V, 0 to 10V
Number of Channels:
4 differential/8 single-ended (software-selectable)
Input Configuration: Multiplexed
Channel Gain Queue: 8 unique consecutive elements,
software-configurable range for each channel
Absolute Maximum Input Voltage: CHx IN to GND
  Power On: ±25V max
  Power Off: ±12V max
Input Impedance: 35 M? min.
Input Bandwidth (-3 dB): All input ranges, 2 MHz typ
Input Leakage Current: ±250 nA typ
Input Capacitance: 32 pf typ
Maximum Working Voltage: (Signal + Common Mode)
  ±20V: ±14V, ±10V: ±11V, ±5V: ±5.5V
Sampling Rate: 1 S/s to 1 MS/s, software programmable
Sample Clock Source: Internal A/D clock or AICKI
Burst Mode: Software-selectable, burst rate = 1 µs
Throughput
  Software-Paced: 33 to 4000 S/s typ, system-dependent
  Hardware-Paced: 1 MS/s max
Resolution: 13-bits
A/D No Missing Codes (Uncalibrated)
  Differential (Mode): 13-bits
  Single Ended (Mode): 12-bits
CMRR: 60 Hz, 74 dB typ

ANALOG OUTPUT
D/A Converter: Texas Instruments DAC7553
Number of Channels: 4 independent
Resolution: 12-bits
Output Range
  Calibrated: ±10V
  Uncalibrated: ±10.2V
D/A Update Rate
  Software Paced: 33 to 5000 S/s typ, system dependent
  Hardware Paced: 1 MHz max (per channel)
Sample Clock Source: Internal D/A clock or AOCKI (AO external clock input pin)
Monotonicity: 12-bits
Output Current: ±3 mA max per channel
Power Up and Reset State: 0V
Output Noise: 0.53 mV rms
Absolute Accuracy: ±0.1%
Slew Rate: 6.7V/µs typ

DIGITAL I/O
Digital Type: CMOS
Number of I/O: 16
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
by an internal jumper (default setting is pull-down)
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 min, 5.5V absolute max
Input Low Voltage: 0.8V max, -0.5V absolute min, 0V recommended min
Output High Voltage: 4.4V min (IOH = -50 µA), 3.76V min (IOH = -24 mA)
Output Low Voltage: 0.1V max (IOL = 50 µA), 0.44V max (IOL = 24 mA)
Output Current: ±24 mA max per terminal

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 max
Trigger Pulse Width: 100 ns min
Input Type: Schmitt trigger, 33 ? series resistor and 47 k? pull-down to ground
Schmitt Trigger Hysteresis: 0.4 to 1.2V
Input High Voltage: 2.2V min, 5.5V absolute max
Input Low Voltage: 1.5V max, -0.5V absolute min, 0V recommended min

EXTERNAL ACQUISITION
SCAN CLOCK I/O
Terminal Names:
AICKI, AICKO, 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 internal sampling clock (D/A or A/D clock)
  or pulse generated from AxCKI when in external clock mode
Input Clock Rate: 1 MHz max
Clock Pulse Width
  AxCKI: 400 ns min
  AxCKO: 400 ns min
Input Type: Schmitt trigger, 33 ? series resistor, 47 k? pull-down to ground
Schmitt Trigger Hysteresis: 0.4 to 1.2V
Input High Voltage: 2.2V min, 5.5 V absolute max
Input Low Voltage: 1.5V max, -0.5V absolute min, 0V recommended min
Output High Voltage: 4.4V min (IOH = -50 µA), 3.76V min (IOH = -24 mA)
Output Low Voltage: 0.1V max (IOL = 50 µA), 0.44V max (IOL = 24 mA)
Output Current: ±24 mA max per terminal

COUNTERS
Counter Terminal Names: CTR0, CTR1
Counter Type: Event counter
Number of Channels: 2
Input Type: Schmitt trigger, 33 ? series resistor, 47 k? pull-down to ground
Schmitt Trigger Hysteresis: 0.4 to 1.2V
Input High Voltage: 2.2V min, 5.5V absolute max
Input Low Voltage: 1.5V max, -0.5V absolute min, 0V recommended min
Resolution: 32-bits
Max Input Frequency: 20 MHz
Counter Read/Write Rates (Software Paced): 33 to 8000
reads/writes per second typ, system dependent
High Pulse Width: 25 ns min
Low Pulse Width: 25 ns min

TIMER
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: 40 MHz
Register Widths: 32-bits
High Pulse Width: 20 ns min
Low Pulse Width: 20 ns min
Output High Voltage: 4.4V min (IOH = -50 µA), 3.76V min (IOH = -24 mA)
Output Low Voltage: 0.1V max (IOL = 50 µA), 0.44V max (IOL = 24 mA)
Output Current: ±24 mA max per pin

MEMORY
Data FIFO: 4 kS analog input/4 kS analog output
Non-Volatile Memory: 32 KB (16 KB firmware storage, 16 KB calibration/user data)

POWER
Operating Modes: Bus-powered, USB 5V supply
Supply Current: Total current consumption including 5V,
and digital output and analog output currents
  Suspend Mode: <2.5 mA
  Enumeration: <100 mA
  Run Mode: <500 mA
Power Consumption Excluding Analog and Digital Outputs
  Run Mode: 1.175 W max (235 mA input current)
Power Available for 5V, AICKO, AOCKO, TMR, Analog Outputs,
Digital I/O:
  Run Mode: 1.325 W max
+5 V Output Voltage Range:
  Run Mode: 4.5V min, 5.25V max
  Suspend Mode, Enumeration: 0V
+5V Output Current (Run Mode,
No Other Output Loads): 265 mA max (1.325 W)

USB SPECIFICATIONS
USB Device Type: USB 2.0 (high-speed)
USB Device Compatibility: USB 1.1, 2.0
USB Cable Length: 5 m (16.4') max

GENERAL
Operating Temperature Range: 0 to 50°C (32 to 122°F)
Storage Temperature Range: -40 to 85°C (-40 to 185°F)
Humidity: 0 to 90% RH non-condensing
Communications: USB 2.0 (high-speed)
Acquisition Data Buffer: 4 kS
Signal I/O Connector: 2 banks of screw-terminal blocks
Dimensions: 79 L x 82 W x 25 mm H (3.11 x 3.23 x 0.98")
Weight: 160 g (0.35 lbs)