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Specification
Page 9 of 36
057-300 ISSUE: 1.1
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2.4 VREF OUTPUT
Provides a supply output for use with external sensors.
Description
Specification
Applicable Pins
A13, A17
Voltage Output
5 V / 10 V configurable by DSE Configuration Suite PC
Software.
Accuracy
± 5 %
Maximum Source current
100 mA
Voltage Feedback
0 V to 10.8 V
Resolution
12-bits
Accuracy
± 1 % FSD
Protection
Short to ground only
2.5 INPUTS
2.5.1 DIGITAL INPUTS
Description
Specification
Applicable Pins
A5, A6, A12, A18
Number
4 configurable analogue inputs, able to be configured to
operate as digital inputs.
Impedance
> 3
kΩ
Pull-up resistance
Not Applicable. 3 mA current source from resistive sender
circuit.
Pull-down resistance
4.3
kΩ
High level voltage threshold
6 V
Low level voltage threshold
2 V
Active Mode
Configurable by DSE Configuration Suite PC Software (Active
High, Active Low)
Wetting Current Active Low
3 mA ± 10 %
Wetting Current Active High
2.8 mA ± 2 % at 12 V
5.6 mA ± 2 % at 24 V
Debounce
100 ms
Transient Over/undervoltage
± 36 V
2.5.2 ANALOGUE VOLTAGE
Description
Specification
Applicable Pins
A5, A6, A12, A18
Input range
0 V to 10 V nominal (12.1 V max)
Resolution
12 bits
Accuracy
± 1 % FSD
Precision
0.2 % FSD
Input Resistance
>10
kΩ
Common Mode Range
0 V
Sampling Rate
5 ms
Transient Over/Undervoltage
Protection
± 36 V