P330W Absolute Pressure Sensor

NovaSensor P330W Absolute Pressure Sensor is a Piezoresistive (PRT) Pressure Die, offering the same superior stability and sensitivity as in larger die, but in an extremely small footprint, making it ideal for invasive applications where small size is critical. Additionally, it has excellent measurement accuracy, which also makes it ideal for demanding applications with restricted dimensional profiles, such as medical catheters and IC packages.

P330W employs NovaSensor’s proprietary SenStable® processing technology, providing excellent long-term stability and repeatability.

When excited with a DC voltage source, P330W produces a mV output that is proportional to the applied pressure. P330W employs a half-bridge design, which requires two external resistors to complete a full bridge configuration. Additional components may be added to calibrate the output of the sensor.

Technical Specifications
Parameter (Note 1, 2)	Unit	Value	Comment
Pressure Range	mmHg	450 to 1050	Absolute Pressure
Proof Pressure³	mmHg	3000
Burst Pressure⁴	mmHg	4500
Excitation	Volts	1 to 6	DC Voltage
Bridge Resistance⁵	kohm	2.0±0.6
Symmetry⁶	%	±5
Offset Voltage⁷	mV/V	±3	Typical @ 750 mmHg
Sensitivity⁷	µV/V/mmHg	15	Typical
Pressure Non Linearity⁷	mmHg	±1	Typical BFSL, 300 mmHg Range
TC Offset⁷	µV/V/°C	±20	Maximum
TC Sensitivity⁷	%/°C	-0.2	Typical
TC Resistance⁷	%/°C	0.13	Typical
Operating Temperature⁸	°C	15 to 45	59 to 113°F
Storage Temperature	°C	-40 to +85	-40 to 185°F
Media Compatibility^9,10	Clean, dry and non-corrosive gases

Notes

Values measured at room temperature unless noted with 3000-ohm resistors completing the bridge.
Pressure sensor performance can be affected by die mounting. Packaging stress should be minimized to achieve the specified performance.
Proof Pressure: The maximum pressure at which the sensor may be subjected as an uncommon event and for a short duration of time without permanent damage or performance degradation. If the Proof Pressure is exceeded, the die performance is no longer guaranteed.
Burst Pressure: The pressure at which permanent damage to the sensor may occur. Specification is for quasi-static pressure in an oil medium applied to the diaphragm side of the die.
Parameter is measured at the wafer-level 100% at room temperature, atmospheric pressure and 3V.
Symmetry is calculated as 2*(r1 – r2)/(r1 + r2), where r1 and r2 are two piezoresistors measured separately.
Parameters marked “Typical” are verified by testing samples from each wafer. TCR of sensor resistors only. TCR of bridge circuit will be affected by the resistor values completing the bridge.
Die may be used beyond this range with additional validation.
Die with protective layers has been successfully used in various medical and biological applications.
If the sensor is to be exposed to radiation, it is recommended to shield the die from radiation and implement autozeroing.

P330W Part Numbers:	Description
EP330W-3FT	3FT P330W
EP330W-6FT	6FT P330W

P330W Eval Kits:	Description
EP330W-EVAL-D3	P330W Eval Kit, Digital Output
EP330W-EVAL-A3	P330W Eval Kit, Analog Output

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