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Silicon Microstructures

SM7431 Datasheet Preview

SM7431 Datasheet

Gauge and Differential Pressure Sensor

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Low Pressure
Digital Sensor
SM7231, SM7331, SM7431
Gauge and Differential Pressure Sensor
DESCRIPTION
The SM7X31 series are a low pressure MEMS sensor family offers
state-of-the-art pressure transducer technology and CMOS mixed
signal processing technology to produce a Digital output, fully
conditioned, multi-order pressure and temperature compensated
outputs. This series provides JEDEC standard SOIC-16 package with a
dual vertical or horizontal ports options. It is available in gauge,
differential, asymmetric differential configurations. With the dual
porting, a reference measurement is possible to minimize errors due
to changes in ambient pressure.
FEATURES
Pressure range from 0.07 to 0.29 psi; gauge, differential or
asymmetric differential outputs
Digital Accuracy: +/- 1 %FS
16-bit digital, pressure calibrated and temperature
compensated output
I2C interface
Compensated temperature range: -20 to 85°C
Robust JEDEC SOIC-16 package for automated assembly
Manufactured according to ISO9001 and ISO/TS 16949
standards
Combining the pressure sensor with a signal-conditioning ASIC in a
single package simplifies the use of advanced silicon micro-machined
pressure sensors. The pressure sensor can be mounted directly on a
standard printed circuit board and a high level, calibrated pressure
signal can be acquired from the digital interface. This eliminates the
need for additional circuitry, such as a compensation network or
microcontroller containing a custom correction algorithm.
Customer-specified pressure ranges and supply voltages are
available.
The SM7231, SM7331 and SM7431 series shipped in sticks or tape &
reel.
Medical
Industrial
Consumer
Sleep Apnea
Airflow Measurement
Sports Equipment
CPAP
Pneumatic Gauges
Appliances
Ventilators
Pressure Switches
Gas Flow Instrumentation
Safety Cabinets
Air Flow Monitors
Life Sciences
Negative Pressure Wound Therapy
Gas Flow Instrumentation
Silicon Microstructures, Inc. 2001-2018. All rights reserved.
DOC # 40D7760.00
Page 1




Silicon Microstructures

SM7431 Datasheet Preview

SM7431 Datasheet

Gauge and Differential Pressure Sensor

No Preview Available !

SM7231, SM7331, SM7431 Series
www.si-micro.com
1. Absolute Maximum Ratings
All parameters are specified at VDD = 3.3 V / 5.0 V supply voltage at 25°C, unless otherwise noted.
No.
Characteristic
Symbol Minimum Maximum
Units
1
Compensated Temperature
TCOMP
-20
85
°C
2
(a)
Operating Temperature
TOP
-40
105
°C
3
(a)
Storage Temperature
TSTG
-40
125
°C
4
(a, c)
Proof Pressure
PProof
1.5
psi
5
(a, d)
Burst Pressure
PBurst
3
psi
6
Supply voltage
VDDMIN/MAX
-0.3
6
V
7
(a, b)
Media Compatibility
Notes:
a. Tested on a sample basis.
b. Clean, dry gas compatible with wetted materials. Wetted materials include silicon, epoxy, RTV, gold and aluminum.
c. Proof pressure is defined as the maximum pressure to which the device can be taken and still perform within specifications after
returning to the operating pressure range
d. Burst pressure is the pressure at which the device suffers catastrophic failure resulting in pressure loss through the device.
2. ESD
All parameters are specified at VDD = 3.3 V / 5.0 V supply voltage at 25°C, unless otherwise noted.
No.
Description
Condition
Symbol
8
ESD HBM Protection at all Pins
AEC Q100-002 (HBM)
chip level test
VESD(HBM)
Min.
-2
3. Electrical Characteristics
o
All parameters are specified at VDD = 5.0 V / 3.3 V DC supply voltage at 25 C, unless otherwise noted.
Typ.
Max.
+2
Units
kV
No.
Description
Symbol Min.
Typ.
Max.
Units
9
Supply Voltage
4.75
5.0
5.25
VDD
V
3.0
3.3
3.6
10
Low level input voltage at Digital I/O
VIN,I2C,lo
.9 -0.3 -0
V
9 0.9 -o
V
11
High level input voltage at Digital I/O
VIN,I2C,hi .9 0.8*VDD -0
V
9 VDD + 0.3 -o
V
12
Current Consumption
3.0
mA
Silicon Microstructures, Inc. 2001-2018. All rights reserved.
DOC # 40DS7760.00
Page 2



Part Number SM7431
Description Gauge and Differential Pressure Sensor
Maker Silicon Microstructures
Total Page 3 Pages
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SM7431 Datasheet PDF





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