Analog Inputs / Flex Inputs - Logic IO RTCU LX2 pro Technical Manual

RTCU LX2 pro Technical Manual V1.00
Advanced Automotive M2M/IoT Gateway

Analog Inputs / Flex Inputs

The RTCU LX2 pro has two analog inputs. The analog inputs are voltage inputs specified with an
operating range of 0V to 30V DC. The conversion resolution is up to 12 bit(0..4095).
By default, the analog voltage is converted to a digital value with a resolution of 10-bit before being
presented to the application (0..1023). The application can change the resolution to the full 12 bit
(0..4095). Please consult the RTCU IDE documentation for further details.
The input signal is connected between AINx and AGND. Therefore, AGND must be connected to the
reference of the connected equipment. Please be aware that deviations may occur, as the system is
very noise-sensitive. Avoid long unshielded wires and significant fast-changing signals routed
parallel to the analog signals.
The inputs are low-pass filtered, ESD- and transient protected.
X3: 16 pin I/O connector overview
Pin Name
7 AIN 1
8 AIN 2
15 AGND
16 AGND
Specification for each analog input when used as analog input:
Voltage
Resolution
Precision
Cut-off frequency
Input impedance
Specification for each analog input when used as flex input:
Voltage
Resolution
Precision
Cut-off frequency
Input impedance
Logic IO ApS.
Holmboes Allé 14
8700 Horsens
Denmark
Description
Analog input 1 / Flex input 1
Analog input 2 / Flex input 2
Analog Ground
Analog Ground
Min. Typ. Max.
0 - 10
- - 12
- 0.3 0.5
- 4.5 -
- 30 -
Min. Typ. Max.
0 - 30
- - 12
- 0.2 0.3
- 4.5 -
- 30 -
Unit
VDC Protected against transients and
Bit low-pass filtered
%FSR Precision is based on
kHz measurements @ 25 ˚C
kΩ
Unit
VDC Protected against transients and
Bit low-pass filtered
%FSR Precision is based on
kHz measurements @ 25 ˚C
kΩ
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