Clarity INT9 - Manual (Page 47)

6 Tables and Specifications Clarity Hardware
6.4 Technical data
Tab 5: Technical data of the INT9 board:
Parameter Description
Converter type: 24-bit δΣ (delta – sigma)
Analog inputs: differential
Number of
channels:
1, 2 or 4 fully independent and isolated
Input range:
unipolar and bipolar, each channel independently 156, 1 250
or 12 123 mV
Input impedance: > 1 MΩ
Sample rate:
6.3, 12.5, 25, 50, 100, 200, 400 samples per second for 50Hz
mains frequency filter
7.5, 15, 30, 60, 120, 240, 480 samples per second for 60Hz
mains frequency filter
Non-linearity: < 0.003 %
Temperature
dependence:
< 10 ppm/°C
Digital inputs: 4 TTL (5 V)
Digital outputs:
8 TTL (5 V, maximum current load per output 20 mA,
maximum total current load 100 mA), the first four control
relays (switching contacts rating: max. switching current 0.5
ADC, max. contact resistance 150 mΩ, max. voltage 100 V)
Tab 6: Typical noise free resolution for various acquisition speeds and input ranges:
12 123 mV 1 250 mV 156 mV
6.3 Hz 21 bit 21 bit 20 bit
25 Hz 21 bit 21 bit 20 bit
100 Hz 19 bit 19 bit 19 bit
200 Hz 16 bit 16 bit 16 bit
400 Hz 16 bit 16 bit 16 bit
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