HSCSNBD020ND2A3

Series:	TruStability® HSC
Part Status:	Active
Pressure Type:	Differential
Operating Pressure:	±0.72 PSI (±4.96 kPa)
Output Type:	I²C
Output:	12 b
Accuracy:	±0.25%
Voltage - Supply:	3.27 V ~ 3.33 V
Port Size:	Male - 0.19" (4.8mm) Tube, Dual
Port Style:	Barbless
Features:	Amplified Output, Temperature Compensated
Termination Style:	PC Pin
Maximum Pressure:	±12.65 PSI (±87.21 kPa)
Operating Temperature:	-20°C ~ 85°C
Package / Case:	4-SIP, Dual Ports, Same Side
Supplier Device Package:	4-SIP

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The HSCSNBD020ND2A3 is a versatile, high-precision pressure sensor designed to offer accurate and long-term stable measurements. This digital pressure sensor features a Custom ASIC which has been configured with selectable digital output options and user calibration to create a sensor tailored to your application requirements. The HSCSNBD020ND2A3 is a pressure transducer that utilizes an integrated strain gauge wheatstone bridge to convert pressure to electrical signals of 4 to 20 mA with selectable digital outputs such as I2C, IEEE1451.4, and USB. Its integrated signal conditioning and temperature compensation circuit provide superior performance and longer term stability.

Applications:
The HSC SNBD020ND2A3 offers several advantages over traditional pressure sensors such as improved accuracy, longer-term stability, greater reliability over temperatures, and fewer drift between installations. These features make the HSCSNBD020ND2A3 ideal for measuring liquid and gas pressures in a variety of markets such as manufacturing, petrochemical, aerospace, and medical.

Air and gas pressure measurements - HSCSNBD020ND2A3 is suitable for measuring static and differential air or gas pressure.
Chamber atmospheric pressure - Can be used to measure the atmospheric pressure of safety chambers, medical chambers, etc. and to control outflow of gases.
HVAC monitoring and control - Commonly used in the HVAC market, the sensor can be used for performance features such as tracking temperature and air flow conditions.
Leak test and detection - Due to its resolution and stability, this device is ideal for detecting small leaks in pipelines and pressurized systems.
Medical equipment - Can be used in ventilators, patient monitors, and oxygen concentrators to measure air and gas pressures.
Flow monitoring - Can be used to measure and monitor the flow of gases or liquids in different industrial applications.
Automotive - Can be applied in automotive systems such as airbags, brakes, and fuel injection systems.

Working Principle:
The HSCSNBD020ND2A3 utilizes a Wheatstone bridge to convert pressure into an electrical signal. This pressure transducer utilizes a micro-machined strain gauge which converts the measured pressure into an output voltage. The strain gauge is epoxied to a diaphragm sealed within a stainless steel housing which protects the sensitive electronics from hostile environments. The signal conditioning and temperature compensation circuits are integrated and connected to a high-precision voltage reference.

The Wheatstone bridge consists of four resistors varying in value to a known ratio. An excitation voltage is applied, causing current to flow through the bridge. To measure pressure, the applied pressure distorts the strain gauge, changing the resistance ratio of the bridge. This produces an output voltage that is proportional to the applied pressure. The pressure is then digitized by integrating an ASIC into the device which is programmed by the user for desired digital outputs. The ASIC contains pre-programmed signal conditioning and temperature compensation features. These features allow for superior performance and long-term stability.

In conclusion, the HSCSNBD020ND2A3 is a versatile, high-precision pressure sensor designed for long-term stability and accuracy. With its selectable digital outputs and user-programmable features, this pressure transducer is an ideal choice for a wide range of applications, such as air and gas pressure measurements, chamber atmospheric pressure, HVAC monitoring and control, leak test and detection, medical equipment, flow monitoring, and automotive systems.

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