16-Channel Differential Input Voltage Card for use
with OMB-LOGBOOK and OMB-DAQBOARD-2000 Series

OMB-DBK80

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16 Differential Input Channels
Unity Gain Combines with OMB-BOARD-2000 Series/OMB-LOGBOOK Gains to Provide Full Scale Inputs from ±156mV to ±10V (±625mV to ±5V)
Convenient On-Board Screw Terminal Signal Connection
Compact Form Factor Mounts in any OMB-DBK Compatible Enclosure

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商品説明

The OMB-DBK80 provides 16-channels of differential voltage input for OMB-DAQBOARD-2000 Series and OMB-LOGBOOK measurement systems. The OMB-DBK80 can operate at the full 100 KHz sample rate with no degradation of published performance. The OMB-DBK80 has a single, unity-gain input stage on all channels.

When coupled with the on-board x1 through x64 programmable input gains on the OMB- DAQBOARD-2000 Series and OMB-LOGBOOK product lines, the combination provides full-scale input ranges from ± 10V down to ±156mV full-scale inputs. (±625mV to ±5V when used with OMB-DAQBOARD-2000 Series).

The OMB-DBK80’s ultra-low noise design allows users to expand their input channels up to 256 channels, without incurring additional noise or inaccuracies due to the input expansion cards. Up to 16 OMB-DBK80’s can be attached to one A/D system, and can also be combined with any other OMB-DBK series expansion and signal conditioning options.

The OMB-DBK80 also has a +5V or +10V precision voltage source on-board (jumper selectable). This can also be used to bias strain gages, thermistors, or other transducers that require biasing.

Specifications
Connector: DBK37 male,
mates with P1 pin-out on an
OMB-DAQBOARD-2000 Series
or OMB-LOGBOOK
User Connections: Screw-terminals for signal connection
Gain Ranges: 1, x1
Inputs: 16 differential voltage inputs
Maximum Voltage Range: ±10V
Input Impedance: 20M ohm
Accuracy: +0.025% + 150 µV (typ),
+ 0.1% +250 µV (max)
Maximum Input Voltage
(without damage): 35V
3dB Bandwidth: 2.6 M Hz
CMRR: 80dB
Excitation Voltage:
One channel jumper selectable to +5V or +10V
Excitation Voltage Accuracy: +0.5%
Excitation Voltage Current Limit:
20 mA source, 1 mA sink
Power: 25 mA max from +15V
(with no load on excitation voltage)