HBM Genesis GEN5i User Manual page 404

Portable, integrated data acquisition system
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Analog Input Section
Input type
Input coupling
Impedance
Ranges
Offset
DC Offset error
DC Gain error
Maximum static error (MSE)
RMS Noise
Input overload protection
Overload recovery time
Analog to Digital Conversion
Sample rate; per channel
ADC resolution; one ADC per channel
ADC Type
Time base accuracy
Binary sample rate
Maximum binary sample rate
External time base sample rate
External time base level
External time base minimum pulse width
Mainframes using Interface/Controller modules shipped before 2012: ± 30 ppm
(1)
Amplifier Bandwidth and Filtering
Using different filter selections (Bessel IIR/FIR/etc.) or different filter bandwidths will lead to phase mismatches between channels.
Bessel IIR (Fc @ -3 dB)
FIR (Fc @ -0.1 dB)
FIR (Fc @ -3 dB)
Supported by Perception V6.40 and higher
404
Analog single ended
DC, GND
1 MΩ ± 1% // 65 pF ± 10%
± 1 V, ± 2 V, ± 5.0 V, ± 10 V, ± 20 V, ± 50 V
Each fixed range supports a variable gain with 1000 steps (0.1 %).
Variable gain creates 1000 extra ranges between 2 fixed ranges.
± 50 % in 1000 steps (0.1 %);
± 50 V range has fixed 0 % offset
0.1 % of Full Scale ± 10 μV
Bessel IIR and FIR
± 100 ppm/°C (± 180 ppm/°F)
Offset error drift
0.1 % of Full Scale ± 10 µV
Bessel IIR and FIR
± 70 ppm/°C (± 130 ppm/°F)
Gain error drift
0.1 % of Full Scale ± 10 µV
Bessel IIR and FIR
0.02 % of Full Scale ± 10 μV
Bessel IIR and FIR
± 250 V DC
Maximum voltage
Restored to 0.1 % accuracy in less than 1 μs after 200 % overload
0.1 S/s to 200 kS/s
16 bit
Successive Approximation Register (SAR); TI ADS8401IB
Defined by mainframe: ± 3.5 ppm
Supported; when Calculating FFT's produces rounded/integer BIN sizes
204.8 kS/s
0 S/s to 200 kS/s
TTL
200 ns
When Bessel IIR filter is selected, this is always a combination of an analog Bessel anti
alias filter and a digital Bessel IIR filter.
Bessel filters are typically used when looking at signals in the time domain. Best used for
measuring transient signals or sharp edge signals like square waves or step responses.
Standard FIR filter with corner frequency (Fc) defined at -0.1 dB.
When FIR filter is selected, this is always a combination of an analog Butterworth anti alias
filter and a digital FIR filter.
Best used when working in the frequency domain. When working in the time domain this
filter is best used for signals that are (close to) sine waves.
Adapted FIR filter with corner frequency (Fc) calculated as close as possible to -3 dB.
When FIR filter is selected, this is always a combination of an analog Butterworth anti alias
filter and a digital FIR filter.
Best used when working in the frequency domain. When working in the time domain this
filter is best used for signals that are (close to) sine waves.
; aging after 10 years ± 10 ppm
(1)
GEN5i
I2679-4.0 en

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