The new OM-USB-3101, OM-USB-3103, and
OM-USB-3105 are voltage output USB 2.0 full-speed
modules. Each module provides 4, 8, or 16 voltage
outputs. All modules provide synchronous and
concurrent voltage updates.
All OM-USB-3100 Series modules provide eight
digital I/O lines and one 32-bit event counter and are
powered by the 5V USB supply from the computer.
All OM-USB-3100 Series modules provide either
4, 8, or 16 channels of 16-bit analog output.
Each channel is software-selectable for either a bipolar
voltage output range of ±10 V or unipolar range of
0 to 10V. Channel outputs can be updated individually
The OM-USB-3100 Series 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 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 AND 8 (32-bit and 64-bit) operating
Synchronous DAC Updates
All OM-USB-3100 Series modules have a
synchronous DAC load connection pin (SYNCLD)
that simultaneously updates DAC outputs on multiple
devices. You can configure this with software as an
input (slave mode) or as an output (master mode).
In slave mode, the SYNCLD pin receives the D/A
LOAD signal from an external source. When the
SYNCLD pin receives the trigger signal, the analog
outputs are updated simultaneously.
In master mode, the internal D/A LOAD signal is sent
to the SYNCLD pin. You can then synchronize with a
second device of the same type and simultaneously
update the DAC outputs on each device.
On power up and reset, the SYNCLD pin is set to
slave mode (input).
All OM-USB-3100 Series modules have eight
bidirectional digital I/O connections. The digital DIO lines
can be independently programmed for input or output.
All digital pins are floating by default. A screw terminal
connection is provided to configure for pull-up (5V) or
Each OM-USB-3100 Series module has a 32-bit event
counter for counting TTL pulses. The counter increments
when the TTL levels transition from low to high. The
counter accepts frequency inputs of up to 1 MHz.
SPECIFICATIONS ANALOG VOLTAGE OUTPUT D/A Converter: DAC8554 Number of Channels: OM-USB-3101: 4 OM-USB-3103: 8 OM-USB-3105: 16 Output Ranges (Software-Selectable): Calibrated: ±10V, 0V to 10V Uncalibrated: ±10.2V, -0.04V to 10.08V Resolution: 16 bits Absolute Accuracy (Calibrated Output): ±10V: ±4.0 LSB 0 to 10V: ±22.0 LSB Relative Accuracy (±LSB): ±10V, 0 to 10V: 4.0 typical, 12.0 maximum Output Transient (±10V to 0 to 10V or 0 to 10V to ±10V): Range Selection: The output voltage level defaults to 0V when the output voltage range is reconfigured, the host computer is reset, shut down, or suspended, or a reset command is issued to the device. Duration: 5 µs typical Amplitude: 5V p-p typical Host Computer is Reset, Powered On, Suspended, or a Reset Command is Issued to Device: The duration of this output transient is depends highly on the enumeration process of the host computer. Typically, the output is stable after two seconds. Duration: 2 s typical Amplitude: 2V p-p typical Initial Power On: Duration: 50 ms typical Amplitude: 5V peak typical Differential Nonlinearity: The maximum differential nonlinearity specification applies to the entire operating temperature range. This specification also accounts for the maximum errors due to the software calibration algorithm (in calibrated mode only) and the DAC8554 nonlinearities) Calibrated: ±1.25 LSB typical, -2 LSB to 1 LSB maximum Uncalibrated: ±0.25 LSB typical, ±1 LSB maximum Output Current (VOUTx Pins): ±3.5 mA typical Output Short-Circuit Protection (VOUTx Connected to AGND): Indefinite Output Coupling: DC Power On and Reset State: DACs Cleared to Zero-Scale: 0V, ±50 mV typical Output Range: 0 to 10V Output Noise: 0 to 10V Range: 14.95 µVrms typical ±10V Range: 31.67 µVrms typical Settling Time (To 1 LSB Accuracy): 25 µS typical Slew Rate: 0 to 10V Range: 1.20V/µS typical ±10V Range: 1.20V/µS typical Throughput: Single-Channel: 100 S/s maximum, system-dependent Multichannel: 100 S/s/#ch maximum, system-dependent
ANALOG OUTPUT CALIBRATION Recommended Warm-Up Time: 15 minutes minimum on-board precision reference DC Level: 5.000V ±1 mV maximum Tempco: ±10 ppm/°C maximum Long-Term Stability: ±10 ppm/SQRT(1000 hrs) Calibration Method: Software calibration Calibration Interval: 1 year
DIGITAL I/O Digital Logic Type: CMOS Number of I/O: 8 Configuration: Independently-configured for input or output Pull-Up/Pull-Down Configuration: Softwareselectable; all pins floating (default). For pull-down, connect the DIO CTL pin to a DGND pin. For pull-up, connect the DIO CTL pin to the 5V pin. Digital I/O Input Loading: TTL (default); 47 KΩ (pull-up/pull down configurations) Digital I/O Transfer Rate (System-Paced): System-dependent, 33 to 1000 port reads/writes or single bit reads/writes per second. Input High Voltage: 2.0V minimum, 5.5V absolute maximum Input Low Voltage: 0.8V maximum, -0.5V absolute minimum Output High Voltage (IOH = -2.5 mA): 3.8V minimum Output Low Voltage (IOL = 2.5 mA): 0.7V maximum Power On and Reset State: Input
SYNCHRONOUS DAC LOAD Pin Name: SYNCLD (terminal block pin 49) Power On and Reset State: Input Pin Type: Bidirectional Termination: Internal 100 K pull-down Software-Selectable Direction: Output: Outputs internal D/A LOAD signal Input: Receives D/A LOAD signal from external source Input Clock Rate: 100 Hz maximum Clock Pulse Width: Input: 1 µs minimum Output: 5 µs minimum Input Leakage Current: ±1.0 µA typ Input High Voltage: 4.0V minimum, 5.5V absolute maximum Input Low Voltage: 1.0V maximum, -0.5V absolute minimum Output High Voltage: IOH: -2.5 mA: 3.3V minimum No Load: 3.8V minimum; SYNCLD is a Schmitt trigger input and is overcurrent protected with a 200 Ω series resistor Output Low Voltage: IOL: 2.5 mA: 1.1V maximum No Load: 0.6V maximum; When SYNCLD is in input mode, the analog outputs may either be updated immediately or when a positive edge is seen on the SYNCLD pin (this is under software control). However, the pin must be at a low logic level in order for the DAC outputs to be updated immediately. If an external source is pulling the pin high, no update occurs.
COUNTER Pin Name: CTR Number of Channels: 1 Resolution: 32-bits Counter Type: Event counter Input Type: TTL, rising edge triggered Counter Read/Write Rates (Software-Paced): System dependent, 33 to 1000 reads per second Schmidt Trigger Hysteresis: 20 to 100 mV Input Leakage Current: ±1.0 µA typical Input Frequency: 1 MHz maximum High Pulse Width: 500 ns minimum Low Pulse Width: 500 ns minimum Input High Voltage: 4.0V minimum, 5.5V absolute maximum Input Low Voltage: 1.0V maximum, -0.5V absolute minimum
MEMORY EEPROM: 256 bytes EEPROM Configuration: Address Range: 0x000-0x0FF Access: Read/write Description: 256 bytes user data
MICROCONTROLLER Type: High performance 8-bit RISC microcontroller Program Memory: 16,384 words Data Memory: 2048 bytes
GENERAL Operating Environment: 0 to 70°C (32 to 158°F), 0 to 90% RH non-condensing Storage Temperature: -40 to 85°C (-40 to 185°F) Communications: USB 2.0 full-speed mode (12 Mbps) Signal I/O Connector: Screw terminals Power: Supply Current (USB Enumeration): <100 mA Supply Current (Quiescent): Total quiescent current requirement includes up to 10 mA for the status LED. This does not include any potential loading of the digital I/O bits, 5V user terminal, or the VOUTx outputs. OM-USB-3101: 140 mA typical OM-USB-3103: 160 mA typical OM-USB-3105: 200 mA typical 5V User Output Voltage Range: 4.5 to 5.25V (assumes USB power supply is within specified limits) 5V User Output Current: 10 mA maximum (refers to the total amount of current that can be sourced from the 5V user terminal for general use; also includes any additional contribution due to DIO loading Dimensions: 127 L × 88.9 W × 35.6 H mm (5.0 × 3.5 × 1.4") Weight: 159 g (0.35 lb)
† All amounts shown in EUR, GBP, or USD Note: Comes complete with 2 m (6') USB cable and software and operator’s manual on CD.
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