Product Description:
WF200S Silicon-Structured MEMS Differential Pressure Sensor With A
Range Of 0 - 10 kPa Is Used For Medical Monitoring
Features:
WF200S pressure sensor is a fully-silicon-structured MEMS
differential pressure sensor.
The WF200S adopts the Hewitt full bridge design. Under the standard
operating power supply, it can achieve precise measurement of
pressure ranging from 0 to 10 kPa (customizable for multiple
ranges), and exhibits a good linear relationship with the output
voltage.
The WF200S series pressure generator adopts a dual-sensor air
nozzle structure and is packaged in SOIC 16 format.
WF200S is applicable to various medical devices such as blood
pressure monitors, ventilators, pulmonary function meters,
hemodialysis equipment, and arterial sclerosis detectors.
The WF200S differential pressure sensor supports customisation of
multiple measurement ranges.
Current range: 5KPa, 10KPa, 20KPa, 40KPa, 100KPa, 200KPa, 300KPa.
The WF200S product has the following key features:
High sensitivity
High reliability
High precision
High stability
Pressure range: 0 - 10 kPa (differential pressure)
Constant voltage power supply: 0V to 10V
Constant current power supply: 0mA to 2mA
Operating temperature range: -40 to +125°C
Size: 10.3 X 10.3 X 10.3 mm
Parameter Name External Conditions Minimum Typical Maximum Unit
Remarks
General Characteristics
Pressure Range - 0~10; 0~40; 0~200 kPa 1
Overload pressure TA = 25℃ 2X FS
Explosion pressure TA = 25℃ > 3X FS
Operating temperature - -20 to +85 ℃
Storage temperature - -40 to +125 ℃
Media compatibility: air and non-corrosive gases
Electrical characteristics
Excitation voltage TA = 25℃ 5 to 10 V
Excitation current TA = 25℃ 1 to 2 mA
Bridge arm resistance TA = 25℃ 4, 5, 6 kΩ 2
Zero point offset TA = 25℃ -15 to 0 to 15 mV
Full-scale output TA = 25℃
45, 60, 75 mV 10kPa range
60, 75, 90 mV 40kPa range
70, 90, 110 mV 200kPa range
Linearity TA = 25℃ -0.3 to 0.3 %VFS best-fit straight line
Zero point offset temperature coefficient TA = 25℃ -0.08 to 0.08
%VFS
Full-scale output temperature coefficient TA = 25℃ -0.27 to -0.22
to -0.17 %VFS /℃ constant pressure excitation
Full-scale output temperature coefficient TA = 25℃ -0.03 to 0.03
%VFS /℃ constant current excitation
Resistance temperature coefficient TCR TA = 25℃ 1600 to 2000 ppm/℃
Pressure hysteresis TA = 25℃ -0.1 to 0.05 to 0.1 %VFS
Temperature hysteresis TA = 25℃ -0.3 to 0.3 %VFS
Specifications:
| Temperature Compensation | -40℃ ~ 125℃ |
| Operating voltage | 3.0V/(5.0V) |
| Analog voltage output | 0.4 - 2.0 VDC |
| Over-range output | 2.0 V - 2.4 V) |
