L-Card E20-10, Руководство пользователя

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2.1.
Complete list of user differences of revisions А, В
and B.01 for E20-10 module
Since 2008
L-Card
has decided to release E20-10
of revision В with advanced useful
quality.
All E20-10
modules of 2006 and 2007 production years should be related to revision А (see
label on the body bottom), since 2008 L-Card has started to produce E20-10
of revision В.
In 2013
L-Card
has started to release revision B.01 with extended power voltage range.
Revisions B and B.01 are not differed in program. Revision B.01 specified on label on body bottom
face, new power voltage range "+8.0...+40 V" is specified on body top cover.
E20-10 module has signed in 2017 as modification in L-CARD Measuring voltage converter
series.
All consumer differences of
E20-10
of revisions А and В are given in Table:
Characteristic, parameter, function,
property
E20-
10 revision А
E20-10 of revisions B and B.01,
L-CARD-E20-10
Data calibration procedure...
(p.
5.2.5
)
is performed on computer
(by implementing of the
relevant library function) is performed inside E20-10 by
FPGA hardware.
Interframe delay range
(p.
5.2.1
)
0-255 ADC conversion
frequency periods 0-65535 ADC conversion frequency
periods
Power consumption
(p.
7.4
)
to 5 W to 4.5 W
Power supply voltage
+9.0...+27 V +9.0...+27 V (revision B)
+8.0...+40 V (revision B.01)
ADC input offset current software
disconnecting capability (p.
6.5.4.1
)
no yes
Intrinsic input current of ADC analog
input (p.
7.1 )
-15...0 µA (typical value -
7 µA) 10 nA (typical value), if input
current is not specially on
Typical signal-to-noise ratio
(p.
7.1
)
70 dB 73 dB
Minimum data acquisition rate at
maximum interframe delay and ADC
conversion frequency of 1 MHz (p.
7.1
)
7.8 kbyte/s 30 byte/s
Input resistance of analog input min. 5 MOhm 10 MOhm ± 5%
Inter-channel interference , not more
than (p.
7.1
):
- at constant voltage
- at frequency of 1 kHz
- at frequency of 1 MHz
-50 dB
-70 dB
-60 dB
-70 dB
-75 dB
-65 dB
Operating current of output of +5V of
external devices power supply 35 mA 35 mA (revision B)
100 mA (revision B.01)