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4/8/16-Channel Analog Voltage Output USB Data Acquisition Modules

4, 8, or 16-Channel Analog Voltage Output USB Data Acquisition Modules

Item# OM-USB-3101

4, 8, or 16-Channel Analog Voltage Output USB Data Acquisition Modules OM-USB-3101 OM-USB-3101
  • 4, 8, or 16 Analog Voltage Outputs
  • 16-Bit Resolution
  • 100 S/s Update Rate
  • 8 Digital I/O

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.

Analog Output
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 or simultaneously.

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 systems.

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).

Digital I/O
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 pull-down (0V).

Counter Input
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.

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
    Single-Channel: 100 S/s maximum, system-dependent
    Multichannel: 100 S/s/#ch maximum, system-dependent

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 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 K? (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

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 ? 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.

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

EEPROM: 256 bytes
EEPROM Configuration:
    Address Range: 0x000-0x0FF
    Access: Read/write
    Description: 256 bytes user data

Type: High performance 8-bit RISC microcontroller
Program Memory: 16,384 words
Data Memory: 2048 bytes

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
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)
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