Colibrick A/D Converter
6 Tables and specifications
6.4 Technical Data
Tab 6: Technical data of the
Colibrick
device:
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 156.26, 1
250 or 12 123 mV
Input impedance:
1 MΩ
Sample rate:
6.25, 12.5, 25, 50, 100, 200, 400 samples per second for 50
Hz mains frequency filter
7.5, 15, 30, 60, 120, 240, 480 samples per second for 60 Hz
mains frequency filter
Non-linearity:
< 0.003%
Crystal
inaccuracy:
50 ppm (may cause shift of the signal in milliseconds during
1-hour analysis or in seconds during a week-long analysis)
Digital inputs:
4 TTL (5 V)
Digital outputs:
8 TTL (5 V) maximum current load 20 mA, maximum total
current load for all outputs 100 mA
4 of them also as relay contacts - normally open (i.e. contact
closure)
max. current 0.5 ADC, max. voltage 100 VDC, max. switching
power 10 VA, max. resistance 150 mΩ
Dimensions:
105 x 124 x 22 mm
Weight:
290 g
Power supply:
from the PC via the USB cable
Tab 7: Typical noise free resolution for various acquisition speeds and input ranges:
12 123 mV
1 250 mV
156 mV
6.25 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
- 44 -
