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Analog Input Expansion Module for OMB-DAQ-3000 Series
and OMB-DAQBOARD-3000 Series


Analog Input Expansion Module for OMB-DAQ-3000 Series and OMB-DAQBOARD-3000 Series | OMB-PDQ30

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  • Adds 24 Differential/48 Single-Ended Inputs to OMB‑DAQBOARD‑3000 Series PCI Boards and OMB‑DAQ‑3000 Series Personal Daq USB Data Acquisition Modules
  • Any Input Can Be a Voltage or a Thermocouple
  • Convenient Removable Screw-Terminal Connections
USB, RS232, RS485 and Ethernet Data Acquisition Systems - View related products


The OMB-PDQ30 analog input expansion module increases total channel capacity of an OMB‑DAQBOARD‑3000 Series PCI bus data acquisition board or OMB-DAQ-3000 Series Personal Daq USB data acquisition module to a total of 32 differential or 64 single-ended analog inputs. The OMB‑PDQ30 attaches to an OMB-DAQBOARD-3000 Series board via an optional OMB-CA-266-3 cable, and to the OMB-DAQ-3000 Series either by plugging directly into the Personal Daq module with included clips, or via an optional OMB-CA-96 cable if it is necessary to have some distance between devices.

Voltage measurements via the OMB-PDQ30 have the same ranges as the host OMB-DAQBOARD-3000 Series PCI board or OMB-DAQ-3000 Series Personal Daq USB module. When used with either host, the OMB-PDQ30 also adds thermocouple measurement capability, in which the A/D operates in a programmable, over-sample/digital filtering mode to provide low-noise and stable temperature measurements.

Operating Temperature:

-30 to 70°C (-22 to 158°F)
Storage Temperature:
-40 to 80°C (-40 to 176°F)
Warm-Up: 30 min to rated specifications
Relative Humidity:
0 to 95%, non-condensing
Vibration: MIL STD 810E, category 1 and 10
Communications Connector: 25-pin DSUB
Signal I/O Connector:
6 removable screw-terminal blocks
(12 connections each)
269 W x 92 D x 45 mm H
(10.6 x 3.6 x 1.6")
Weight: 400 g (0.88 lbs)
Power: Supplied by OMB-DAQBOARD-3000 Series
PCI board or OMB-DAQ-3000 Series
Personal Daq USB module; 400 mW max

48 single-ended inputs,
24 channels of differential inputs,
Voltage Measurement Speed:
1 µs per channel
Temperature Measurement Speed:
Programmable from 100 µs to 20 ms per channel
Ranges: ±10 V, ±5 V, ±2 V,
±1 V, ±500 mV, ±200 mV, ±100 mV,
universal thermocouple
Total Harmonic Distortion:
-80 dB typical for ±10 V range,
1 kHz fundamental
Signal to Noise and Distortion:
72 dB typical for ±10 V range, 1 kHz
Fundamental Input Impedance:
10 MΩ (single-ended); 20 MΩ (differential)
Bias Current:
40 pA typical (0 to 35°C)
Over-Voltage Protection: ±30 V
Ranges: Software or sequencer
selectable on a per-channel basis
Crosstalk: -90 dB DC to 60 Hz;
86 dB @10 kHz, typical
(Specify Model Number)

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Part Number/Desc.
Consult Sales  
Analog input expansion module, adds 24DE/48SE channels to OMB-DAQ-3000 Series acquisition modules and OMB-DAQBOARD-3000 Series PCI bus data acquisition cards
Consult Sales  
OMB-DAQBOARD-3000 Series to OMB-PDQ30 cable, 0.9 m (3')
Consult Sales  
OMB-DAQ-3000 Series to OMB-PDQ30 cable, 0.6 m (2')
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