Figure 1. TEB Components for TruStability™ Board Mount Pressure Sensors
Sources of Error
Offset
Full Scale Span
Pressure Non-Linearity
Pressure Hysteresis
Pressure Non-Repeatability
Thermal Effect on Offset
Thermal Effect on Span
Thermal Hysteresis
Table 1. Absolute Maximum Ratings
1
Characteristic
Supply voltage (V
supply
)
Voltage on any pin
Digital interface clock frequency
ESD susceptibility (human body
model)
Storage temperature
Soldering time and temperature:
lead solder temperature (DIP)
peak reflow temperature (SMT)
1
Accuracy
BFSL
Total
Error
Band
Min.
2.7
-0.3
—
—
-40 [-40]
Max.
6.0
V
supply
+ 0.3
5
2
85 [185]
4 s max. at 250°C [482°F]
15 s max. at 250°C [482°F]
Unit
Vdc
V
MHz
kV
°C [°F]
Absolute maximum ratings are the extreme limits the device will withstand without damage.
Table 2. Environmental Specifications
Characteristic
Humidity (gases only)
Vibration
Shock
Life
1
Solder reflow
1
Parameter
0% to 95% RH, non-condensing
15 g, 10 Hz to 2 Hz
100 g, 6 ms duration
1 million pressure cycles minimum
J-STD-020-D.1 Moisture Sensitivity Level 1
(unlimited shelf life when stored at <30°C/85 % RH)
Life may vary depending on specific application in which the sensor is utilized.
Table 3. Wetted Materials
1
Component
Ports and covers
Substrate
Adhesives
Electronic components
1
Port 1 (Pressure Port)
high temperature polyamide
alumina ceramic
epoxy, silicone
plastic, silicon, glass, solder
Port 2 (Reference Port)
high temperature polyamide
alumina ceramic
epoxy, silicone
silicon, glass, gold
Contact Honeywell Customer Service for detailed material information.
Table 4. Sensor Pressure Types
Pressure Type
Absolute
Differential
Gage
Description
Output is proportional to the difference between applied pressure and a built-in vacuum reference.
Output is proportional to the difference between the pressures applied to each port (Port 1 – Port 2).
Output is proportional to the difference between applied pressure and atmospheric (ambient) pressure.
Sensing and Internet of Things
3
TruStability™ Board Mount Pressure Sensors
RSC Series
Characteristic
Supply voltage (V
supply
):
1, 2, 3
pressure ranges >60 mbar | 6 kPa | 1 psi:
3.3 Vdc
5.0 Vdc
pressure ranges <40 mbar | 4 kPa | 20 inH
2
O:
3.3 Vdc
5.0 Vdc
Supply current:
3.3 Vdc:
standby mode
active mode
5.0 Vdc:
standby mode
active mode
Operating temperature range
4
Compensated temperature range:
5
medical
industrial
extended
Startup time (power up to data ready)
Data rate
SPI voltage level:
low
high
Pull up on MISO, SCLK, CS_ADC, CS_EE, MOSI
Accuracy
6
Orientation sensitivity (±1 g):
7, 9
pressure ranges <40 mbar | 4 kPa | 20 inH
2
O
pressure ranges <2.5 mbar | 250 Pa | 1 inH
2
O
1
2
Table 5. Digital Operating Specifications
Min.
Typ.
Max.
Unit
3.0
4.75
3.27
4.95
3.3
5.0
3.3
5.0
3.6
5.25
3.33
5.05
Vdc
—
—
—
—
-40 [-40]
0 [32]
-20 [-4]
-40 [-40]
—
1.3
1.7
2.1
2.6
—
—
—
—
—
—
—
—
—
85 [185]
50 [122]
85 [185]
85 [185]
0.3
mA
°C [°F]
°C [°F]
ms
samples per
second
%Vsupply
kOhm
%FSS BFSL
6
%FSS
8
20, 40, 45, 90, 175, 180, 330, 350, 600, 660,
1000, 1200, 2000
—
80
1
—
—
—
—
—
—
—
±0.1
±0.2
20
—
—
0.1
—
—
Sensors are either 3.3 Vdc or 5.0 Vdc based on the catalog listing selected.
Ratiometricity of the sensor (the ability of the device output to scale to the supply voltage) is achieved within the specified operating voltage.
3
The sensor is not reverse polarity protected. Incorrect application of supply voltage or ground to the wrong pin may cause electrical failure.
4
Operating temperature range: The temperature range over which the sensor will produce an output proportional to pressure.
5
Compensated temperature range: The temperature range over which the sensor will produce an output proportional to pressure within the specified
performance limits (Total Error Band).
6
Accuracy: The maximum deviation in output from a Best Fit Straight Line (BFSL) fitted to the output measured over the pressure range. Includes all
errors due to pressure non-linearity, pressure hysteresis, and non-repeatability.
7
Orientation sensitivity: The maximum change in offset of the sensor due to a change in position or orientation relative to Earth’s gravitational field.
8
Full Scale Span (FSS): The algebraic difference between the output signal measured at the maximum (Pmax.) and minimum (Pmin.) limits of the
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