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SM9233 Datasheet Preview

SM9233 Datasheet

Gauge Pressure Sensor

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Ultra-Low Pressure
Digital Sensor
SM9233/SM9235/SM9236 Series
Gauge Pressure Sensors
FEATURES
Pressure ranges: 250 up to 600 Pa Gauge
Accuracy after Autozero: < 1%FS
16 bit I2C Digital interface
Pressure calibrated and temperature compensated output
Compensated temperature range: -20 to 85oC
DESCRIPTION
The SM923x series are digital, ultra-low pressure sensors offering
state-of-the-art MEMS pressure transducer technology and CMOS
mixed signal processing technology to produce a digital, fully
conditioned, multi-order pressure and temperature compensated
sensor in JEDEC standard SOIC-16 package with a dual vertical
porting option. It is available in a gauge pressure configuration.
The total accuracy after board mount and system level autozero is
less than 1%FS. The excellent warmup behavior and long term
stability further assures its expected performance over the life of the
part.
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.
The SM9233/SM9235/SM9236 are shipped in sticks or tape & reel.
Medical
Industrial
Sleep Apnea
CPAP
Ventilators
Gas Flow Instrumentation
Air Flow Monitors
Life Sciences
HVAC / VAV
Airflow Measurement
Pressure Transmitters
Pneumatic Gauges
Pressure Switches
Safety Cabinets
Gas Flow Instrumentation
Silicon Microstructures, Inc. 2001-2019. All rights reserved
DOC # 40DS9202.03
+1-(408) 577-0100 | sales@si-micro.com I www.si-micro.com
Page 1




Silicon Microstructures

SM9233 Datasheet Preview

SM9233 Datasheet

Gauge Pressure Sensor

No Preview Available !

SM9233/SM9235/SM9236 Series www.si-micro.com
1. Absolute Maximum Ratings
All parameters are specified at Vdd = 3.3 V supply voltage at 25oC, unless otherwise noted.
No.
Characteristic
Symbol
Minimum
1
Supply Voltage
2
Digital IO Voltage
3
Max. Digital IO Current (DC)
4
Storage Temperature(a,b)
5
Proof Pressure (a, c)
6
Burst Pressure (a, d)
VDD
VIO,DIG
IIO,DIG
TSTG
PProof
PBurst
3.0
-0.3
-10
-40
7 (1.0)
20 (2.9)
Maximum
5.5
VDD+0.3
+10
+125
Units
V
V
mA
°C
kPa (PSI)
kPa (PSI)
Notes:
a. Tested on a sample basis.
b. Clean, dry air compatible with wetted materials. Wetted materials include silicon, glass, RTV (silicone), gold, aluminum, copper, nickel,
palladium, epoxy, stainless steel and plastic (mold compound).
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
No.
Description
2.1
ESD HBM Protection at all Pins
3. External Components
Symbol
VESD(HBM)
Minimum
-2
Maximum
2
Units
kV
No.
Description
Symbol
Min.
Typ.
1
Supply bypass capacitor*
CVDD
100
2
I2C Data and clock pull up resistors*
RP
4.7
* Not tested in production
4. Calibrated Pressure Ranges
Calibrated Pressure Ranges
No.
Device Type
1
SM9233 250 Gauge
PMIN (Pa)
0
2
SM9235 300 Gauge
0
3
SM9236 600 Gauge
0
Max.
Units
nF
kOhm
PMAX (Pa)
+250
+300
+600
Silicon Microstructures, Inc. 2001-2019. All rights reserved
DOC # 40DS9202.03
+1-(408) 577-0100 | sales@si-micro.com I www.si-micro.com
Page 2



Part Number SM9233
Description Gauge Pressure Sensor
Maker Silicon Microstructures
Total Page 3 Pages
PDF Download

SM9233 Datasheet PDF





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