Note The specifications listed are valid for cards that have been calibrated and are used in the same mainframe and
slots as they were at the time of calibration. When the card is removed from its original location and placed in
another slot and/or mainframe, the Offset error, Gain error and MSE specifications are expected to increase
(up to double the original specification) due to thermal differences within the configurations. All specifications
are defined at 23 °C
±
2 °C, unless specified differently.
Analog Input Section
Channels
8
Connectors
Metal BNC, 1 per channel
Input type
Analog single
-
ended
Input coupling
DC, GND
Impedance
1 MΩ
±
1% // 65 pF
±
10%
Ranges
±
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 two fixed ranges.
Offset
±
50% in 1000 steps (0.1%);
±
50 V range has fixed 0% offset
DC Offset error
Wideband
0.1% of Full Scale
±
2 mV
Bessel IIR and FIR
0.1% of Full Scale
±
10 μV
Offset error drift
±
100 ppm/°C (
±
180 ppm/°F)
DC Gain error
Wideband
0.1% of Full Scale
±
2 mV
Bessel IIR and FIR
0.1% of Full Scale
±
10 µV
Gain error drift
±
70 ppm/°C (
±
130 ppm/°F)
Maximum static error (MSE)
Wideband
0.1% of Full Scale
±
2 mV
Bessel IIR and FIR
0.1% of Full Scale
±
10 µV
RMS Noise
Wideband
0.02% of Full Scale
±
10 μV
Bessel IIR and FIR
0.02% of Full Scale
±
10 μV
Input overload protection
Maximum voltage
±
250 V DC
Overload recovery time
Restored to 0.1% accuracy in less than 1 μs after 200% overload
Analog to Digital Conversion
Sample rate per channel
0.1 S/s to 1 MS/s
ADC resolution; one ADC per channel
16 bit
ADC Type
Successive Approximation Register (SAR); TI ADS8401IB
Time base accuracy
Defined by mainframe:
±
3.5 ppm
(1)
; aging after 10 years
±
10 ppm
Binary sample rate
Supported; when calculating FFTs results in rounded/integer BIN sizes
Maximum binary sample rate
1.024 MS/s
External time base sample rate
0 S/s to 500 kS/s
External time base level
TTL
External time base minimum pulse width
200 ns
(1)
Mainframes using Interface/Controller modules shipped before 2012:
±
30 ppm
GEN3i
I3763-3.1 en HBM: public
1037
