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Silicon Microstructures

SM1291 Datasheet Preview

SM1291 Datasheet

Gauge and Differential Pressure Sensor

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Medium Pressure
Digital & Analog Sensor
SM1291, SM1391, SM1491
Gauge and Differential Pressure Sensor
FEATURES
15 psi gauge, differential or asymmetric differential outputs
Digital Accuracy: +/- 1 %FS; Analog Accuracy: +/- 1.5 %FS
16-bit digital, pressure calibrated and temperature
compensated output
I2C and analog output interface available
Compensated temperature range: -20°C to 85°C
Robust JEDEC SOIC-16 package for automated assembly
Manufactured according to ISO9001 and ISO/TS 16949
standards
DESCRIPTION
The SM1X91 series are a medium pressure MEMS sensor family
offering state-of-the-art pressure transducer technology and CMOS
mixed signal processing technology to produce both digital & analog
output, fully conditioned, multi-order pressure and temperature
compensated outputs. This series provides two JEDEC standard SOIC-
16 packages with dual vertical or horizontal port options. It is
available in gauge, differential or asymmetric configurations. With
dual porting, a reference measurement is possible to minimize errors
due to changes in ambient pressure.
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 SM1291, SM1391 and SM1491 series are 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 # 40D1860.01
Page 1




Silicon Microstructures

SM1291 Datasheet Preview

SM1291 Datasheet

Gauge and Differential Pressure Sensor

No Preview Available !

SM1291, SM1391, SM1491 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
45
psi
5
(a, d)
Burst Pressure
PBurst
75
psi
6
Supply voltage
VDDMIN/MAX
-0.3
6
V
7
(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
Typ. Max. Units
+2
kV
3. Electrical Characteristics
All parameters are specified at VDD = 5.0 V / 3.3 V DC supply voltage at 25°C, unless otherwise noted.
No.
Description
Symbol Min.
Typ.
Max.
9
Supply Voltage
4.75
V
DD
3
5.0
5.25
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
11
High level input voltage at Digital I/O
VIN,I2C,hi .9 0.8*VDD -0
V
9 VDD + 0.3 -o
12
Current Consumption with analog output
4.5
13
Current Consumption without analog output
3.3
Units
V
V
V
mA
mA
Silicon Microstructures, Inc. 2001-2018. All rights reserved.
DOC # 40DS1860.01
Page 2



Part Number SM1291
Description Gauge and Differential Pressure Sensor
Maker Silicon Microstructures
Total Page 3 Pages
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SM1291 Datasheet PDF





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