Omega Engineering OMB-DBK-34A, User Manual

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DBK18, pg. 6
918894
DBK Option Cards and Modules
DBK18 – Specifications
Name/Function: Low-Pass Filter Card
Number of Channels : 4
Input Connections : 4 BNC connectors
Output Connector : DB37 male, connects to P1 with a CA-37-x cable
Number of Cards Addressable : 64
Input Type : Differential
Voltage Input Ranges :
0 to ±5000 mVDC
0 to ±500 mVDC
0 to ±50 mVDC
0 to ±25 mVDC
0 to ±10 mVDC
Input Amplifier Slew Rate : 12 V/µs minimum
Input Gains : ×1, ×10, ×100, ×200, x500 and user-set
Input Offset Voltage : 500 µV + 5000/G maximum (nullable)
Input Offset Drift : ±5 + 100/G µV/°C maximum
Input Bias Current : 100 pA maximum
Input Offset Currents : 50 pA maximum
Input Impedance : 5 × 10
12
parallel with 6 pF
Switchable Bias Resistors : 100 K
Ω
each to analog common
Gain Errors :
0.04% @ ×1
0.1% @ ×10
0.2% @ ×100
0.4% @ ×200
1.0% @ ×500
Gain vs Temperature :
×1 @ ±20 ppm/°C
×10 @ ±20 ppm/°C
×100 @ ±40 ppm/°C
×200 @ ±60 ppm/°C
×500 @ ±100 ppm/°C
Non-Linearity :
×1 to ±0.015 % full-scale
×10 to ±0.015 % full-scale
×100 to ±0.025 % full-scale
×200 to ±0.025 % full-scale
×500 to ±0.045 % full-scale
Common-Mode Rejection :
70 dB minimum @ ×1
87 dB minimum @ ×10
100 dB minimum @ ×100
100 dB minimum @ ×200
100 dB minimum @ ×500
Active Filter Device : UAF42 (Burr-Brown)
Number of Poles/Filter : 3
Types of Filters : Bessel, Butterworth, Chebyshev
Frequency Range :
0.1 Hz to 20 kHz
The frequency is set by the installation of
4-6 resistors, and/or capacitors, in sockets.
Default Frequency :
1 Hz
Other frequencies may be implemented by
soldering resistors, and/or capacitors, to
locations on the 4 blank plug-in headers.
Values for common frequencies and their
component values are provided with the
blank headers.