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2-Channel Dynamic Signal-Input Card for OMB-DAQBOARD-2000 Series and OMB-LOGBOOK
OMB-DBK4
PLACE ORDER - Offers a Per-Channel Programmable Gain Amplifier for ±50 mV,±500 mV, or ±5 V FS Input
- Includes a Built-In Current Source for ICP Transducer Biasing
- Offers Per-Channel Anti-Aliasing Filters
- Provides Per-Channel Simultaneous Sample and Hold
- Accommodates Either AC or DC Coupled Signals
- Both Dynamic Analog Inputs Sampled Within 50 ns of Each Other
Description
Description
The 2-channel OMB-DBK4dynamic signal-input cardenables OMB-LOGBOOKand OMB-DAQBOARD-2000 Seriesdata acquisition systems toaccommodate inputs frompiezoelectric transducers, such asaccelerometers or microphones, aswell as from various other dynamicsignal sources. Each OMB-DBK4card is equipped with two BNCconnectors and footprints for twouser-installed Microdot connectors,permitting it to easily accommodatemost transducer connections.
Architecture
The OMB-DBK4 providesper-channel, constant currentsource outputs, programmablegain amplifiers, programmableanti-aliasing filters, and sampleand hold amplifiers.
Specifications
Channels: 2
Connectors: DB37 male, 1 BNCper channel, and footprints for one
user-provided Microdot connectorper channel
Current Source:
Output Impedance: >1.4 M .
Compliance: 27 V
Current Levels: 2 and 4 mA(jumper selectable)
Input Impedance: 150 K .
Input Ranges:±50 mV, ±500 mV, and ±5 V FS;
additional full scale rangesare available
when combinedwith the OMB-LOGBOOK’s
or OMB-DAQBOARD-2000 Series
on-board programmable A/D ranges
Coupling: AC and DC
AC High-Pass Filters:Per-channel,
1-pole HPF with 10 Hzor 0.1 Hz cutoff,
selectable via jumper
Input Signal/Noise:>96 dB (BW=100 kHz)
Amplitude Accuracy:±0.5 dB passband center
Low-Pass Filter:Software selectable, 12-poleButterworth filter,
with cutofffrequencies of 18 kHz, 9 kHz, 4.5kHz, 2.25 kHz,
1.125 kHz, 562.5 Hz,281.2 Hz, and 141.6 Hz;
eachchannel can be configured for adifferent cutoff frequency
Power Consumption: 2750 mW(When multiple OMB-DBK4 cards
are used, an OMB-DBK32A
auxiliarypower supply may be required.)
Cables:Use OMB-CA-37-x cablewith OMB-LOGBOOK
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