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PDF SP100-15 Data sheet ( Hoja de datos )

Número de pieza SP100-15
Descripción Pressure Sensor Series
Fabricantes Sensonor 
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No Preview Available ! SP100-15 Hoja de datos, Descripción, Manual

DATASHEET SP100 PRESSURE SENSOR SERIES
SP100-15
SP100 Pressure Sensor Series
The SP100 pressure sensors are calibrated and digitally compensated silicon piezoresistive sensors with SPI
interface. SP100-15 is part of this series, and in addition to pressure it provides temperature and supply voltage
measurements. Each sensor has a unique electronic sensor ID, and has a built in self diagnosis system. SP100-15
can easily be used in a broad range of applications and interfaces directly to a micro controller without the need of
any additional components.
SP100 series of sensors has excellent media compatibility due to a patented bulk micromachined triple stack sensor
die design, utilizing buried piezoresistive elements and backside media access to pressure diaphragm. With this
design the internal connectors and piezoresistive elements of the pressure bridge are isolated from the
measurement media. This isolation is of great importance in terms of stability and reliability of the sensor over a very
long lifetime.
The SP100 sensor design has been proven in harsh environment applications during a period of more than 10 years,
making these sensors ideal choices for demanding applications where simple solutions are needed to quickly
implement reliable and accurate pressure measurements.
SP100-15 belongs to the higher pressure range of SP100 sensors.
SP100-15
TS1482 rev. 2
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SP100-15 pdf
2 Measurement Performance
The ADC of the sensor is an integrating charge balancing converter. Monotonic operation and no missing codes are
guaranteed over the full operating range. All the following specification limits are to be understood as typical values
unless otherwise is stated.
2.1 Pressure Measurement Performance
Parameter
Resolution
Accuracy
Pressure
measurement time
Specification
Unit
Typ
kPa/lsb
2.97
kPa ±17
kPa ±30
kPa ±40
ms 6 (max)
Ambient conditions
Pressure [kPa]
0 to 1000
1000 to 1300
1300 to 1500
2.2 Temperature Measurement Performance
Parameter
Resolution
Accuracy
Pressure
measurement time
Specification
Unit
Typ
°C/lsb
1
°C ±2.4
°C ±3.0
°C ±4.8
ms 1.5 (max)
Ambient conditions
Temperature [°C]
0 to 50
-40 to 100
100 to 125
The temperature read is known to have a deviation from actual temperature. A correction term is given by:
Tcorr 0.004*TPRODUCT 0.0002*TPRODUCT 2
Where:
TPRODUCT is the temperature reported by the product
Tcorr is the correction term. See Figure 2.1.
Tcorr should be subtracted from the reported temperature to achieve the specified accuracy.
TS1482 rev. 2
Figure 2.1 Temperature data correction term
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SP100-15 arduino
10 Error Handling and Recovery
10.1 PROM Data
The PROM contains calibration data and the identification code (ID). It is read at power-on reset, when its
contents are copied to the shadow register. The PROM contains one parity bit. If a parity error occurs during
reading of the PROM, the product will enter the PROM Reload state, as described below.
10.2 PROM Reload
In this state, the product will read the PROM contents again with 1 s intervals until a successful read is completed.
The PROM reading can fail for two reasons:
- Parity error in PROM data
- Reading not allowed due to supply voltage below minimum for read operation
If command via SPI is activated while the product is in the PROM reload/reset state, the FSI will be set.
10.3 Shadow Register Protection
After copying the PROM contents to the shadow register, a 16 bit CRC is calculated using the CCITT polynomial.
This checksum is stored with the data, and is verified for each measurement cycle. If an error is detected, the
product will return a single byte with an error code, and then enter PROM Reload / Reset state.
10.4 Low Supply Voltage
A supply voltage below 2.1 V (nominal) has two consequences:
- Reading of the PROM is not allowed
- The measurement accuracy cannot be guaranteed
The product uses a separate circuit with an output signal called VMIN, to detect this condition. VMIN = 1 will occur
if VDD<2.1 ±0.1V.
If low supply voltage causes the information in the shadow register to be corrupted, the product will enter PROM
reload state as described in section 10.2.
10.5 High Temperature
If high temperature causes the information in the shadow register to be corrupted, the SP100-15 will enter PROM
reload state as described in section 10.2.
10.6 Overflow/Underflow
The overflow bit will be set by an over- or underflow in the ADC or compensation module. For temperature and
supply measurements, ADC overflow will not saturate the compensated output value.
TS1482 rev. 2
- 11 -

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