SCP1000 PCB3 VTI Technologies, SCP1000 PCB3 Datasheet - Page 13

• Manufacturer Part Number: SCP1000 PCB3
• Description: SENSOR I2C 30-120KPA PCB
• Manufacturer: VTI Technologies
• Series: SCP1000r

Specifications of SCP1000 PCB3

• Pressure Type: Absolute
• Operating Pressure: 4.35 ~ 17.40 PSI, 30 ~ 120 kPa
• Output: Digital
• Voltage - Supply: 2.4 V ~ 3.3 V
• Termination Style: Surface Mount
• Operating Temperature: -20°C ~ 70°C
• Package / Case: PCB Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 551-1044

2.2.4
2.2.4.1
VTI Technologies Oy
www.vti.fi
Measurement mode details
High resolution measurement mode
The raw TEMPOUT data (bin '11 1111 1001 0100') is not converted to decimal value
because the sign bit is '1'. The bit pattern is first inverted (bin '00 0000 0110 1011') and
then 1 LSB is added to the inverted bit pattern. The resulting bit pattern is presented in the
last row of Table 4 (Absolute value for TEMPOUT data), which is converted normally to
decimal value:
In this section all measurement modes are described in detail.
In high resolution measurement mode pressure and temperature are measured continuously with
the highest resolution. High resolution mode is activated by writing 0x0A in to OPERATION
register. Once the mode has been started the only interface activity required is periodic reading of
the output pressure and temperature registers (in applications where the temperature is not needed
the output temperature reading can be omitted), see section 2.2.1.1.
SCP1000 operation parameters in high resolution measurement mode are presented in Table 5
below.
Table 5. SCP1000 operation parameters in high resolution mode.
Symbol
V
I
P
T
PWL
TWL
T
F
T
dd
dd
res
res
meas
meas
clr
Parameter
Supply voltage (AVDD & DVDD)
Average supply current
Pressure measurement resolution
Temperature measurement
resolution
Pressure data output word-length
Temperature data output word-
length
Measurement and computation time
Output data refresh rate
Maximum time for servicing the
DRDY interrupt
bin '00 0000 0110 1100' → dec '108' → dec '-108' (because sign bit is '1')
→ conversion to [°C]: -108/20 = -5,4 °C
Doc.Nr. 8260800.08
Subject to changes
Min
2.4
1.6
–
–
–
Typ
500
2.7
1.8
25
17
14
19
14
55
Max
3.3
2.0
–
–
–
Unit
bits
bits
bits
bits
µA
ms
Hz
ms
V
SCP1000 Series
Rev.0.08
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