Vicom Systems FC-FC3 Manual de usuario Pagina 6

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CONFIDENTIAL [AK8999A/AW/AD]
MS1600-E-00 2014/05
- 6 -
3) External Temperature Sensor Characteristics
The characteristics of an external temperature sensor are shown below.
Parameter Symbol Min. Typ. Max. Units Description
Sensor drive current (sink) Tsdi -50 μA
Sensor drive current (source) Tsdo +50 μA
Sensor temp. variation
Tss -2.4 -2.2 -2.0
mV/
C
50μA current drive
Sensor voltage @25
C
Tsv25 550 600 650
mV
50μA current drive
4) Connection of Pressure Sensor and External Temperature Sensor
The recommended connection examples of a pressure sensor and an external temperature sensor (Source or Sink
current drive) are shown below.
Sensor drive source current Sensor drive sink current
VN
VP
VS
EXTMP
AK8999A
Source Current
Sensor Voltage
VN
VP
VS
EXTMP
AK8999A
Sink Current
Sensor Voltage
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