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PDF SP100-2T Data sheet ( Hoja de datos )
| Número de pieza | SP100-2T | |
| Descripción | Pressure Sensor Series | |
| Fabricantes | Sensonor | |
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DATASHEET SP100 PRESSURE SENSOR SERIES
SP100-1(T), SP100-2(T)
SP100 Series
Compensated Pressure Sensors
The SP100 pressure sensors are calibrated and digitally compensated silicon piezoresistive sensors with SPI
interface. In addition to pressure these sensors provides temperature and supply voltage measurements. Each
sensor has a unique electronic sensor ID, and has a built in self diagnosis system. SP100 sensors 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 pressure 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.
SP100-1 and SP100-2 belongs to the lower pressure range of SP100 sensors.
SP100-1
SP100-1T
SP100-2
SP100-2T
TS1483 rev. 1
-1-
1 page  
DATASHEET SP100 PRESSURE SENSOR SERIES
SP100-1(T), SP100-2(T)
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
Model
Unit
SP100-1(T) kPa/lsb
SP100-2(T) kPa/lsb
SP100-1(T)
kPa
kPa
SP100-2(T)
kPa
kPa
All ms
Typ
0.36
0.36
±2.0
±4.6
±2.1
±4.7
6
(max)
Ambient conditions
Temperature [°C]
-40 to 125
Pressure [kPa]
0 to 100
-40 to 125
0 to 100
0 to 50
0 to 100
-40 to 125
0 to 100
0 to 50
0 to 100
-40 to 125
0 to 100
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
°C ± 4.2
°C ± 6.0
ms 1.5 (max)
Ambient conditions
Supply voltage [V]
2.1 to 3.6
2.5 to 3.6
2.5 to 3.6
2.5 to 3.6
2.1 to 2.5
2.1 to 2.5
2.1 to 3.6
The temperature read is known to have a deviation from actual temperature. A correction term is given by:
ΔTcorr = −0.92 + 0.004 *TPRODUCT + 0.0002 *TPRODUCT 2
Where: TPRODUCT is the temperature reported by the product, and Δ Tcorr is the correction term. See Figure 2.1.
Δ Tcorr should be subtracted from the reported temperature to achieve specified accuracy.
TS1483 rev. 1
-5-
5 Page 
DATASHEET SP100 PRESSURE SENSOR SERIES
SP100-1(T), SP100-2(T)
9 Current Consumption
9.1 Standby Current
The standby current is the current drawn by the product when only the low-power oscillator and the interval
counters are running.
9.2 Measurement Current
During measurement, various analog modules will be switched on and off as required, to minimize the total current
consumption.
Table 9.1 Measurement current
Parameter
Supply current in standby mode
Supply current, all analog modules active
Supply current, digital activity incl. MCLK
Supply current in standby mode
Supply current, all analog modules active
Supply current, digital activity incl. MCLK
Comment
25°C, 2.1 V
90°C, 2.1V
120°C, 2. I V
25°C, 2.1 V
90°C, 2.1 V
120°C, 2.1 V
25°C, 2.1 V
90°C, 2.1 V
120°C, 2.1 V
25°C, 3V
90°C, 3 V
120°C, 3V
25°C, 3V
90°C, 3V
120°C, 3V
25°C, 3V
90°C, 3V
120°C, 3V
Typ Max
0.3 0.45
23
11 16.5
2.1 2.9
2.2 3.0
2.2 3.1
0.5 0.8
0.5 0.8
0.6 0.9
0.4 0.6
2.3 3.45
13 19.5
2.7 3.5
2.8 3.7
2.8 3.8
0.6 1.0
0.6 1.1
0.7 1.2
Unit
µA
µA
µA
mA
mA
mA
mA
mA
mA
µA
µA
µA
mA
mA
mA
mA
mA
mA
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.
TS1483 rev. 1
- 11 -
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet SP100-2T.PDF ] | |
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