SG-P22 series pressure chip, is a silicon piezoresistive pressure sensitive chip based on SOI technology. This series of chips uses the piezoresistive detection principle, when the pressure sensitive film is deformed under pressure, the resistance change on the sensitive film characterizes the input pressure. Under the excitation of constant voltage/constant current source, the output voltage generated is linear with the input pressure.

SG-P22 series chip with stability, high repeatability and wide operating temperature zone characteristics, suitable for various packaging forms, can provide absolute pressure(A)or gauge pressure(G) according to the different application environment chip, suitable for digital compensation and resistance network compensation.

Features

High repeatability
Operating temperature range-55℃~180℃
High reliability

Applications

Weather measurement
Air data system

Oil drilling
Industrial measurement and control

Specifications

Standard range	Range code		Pressure range	Type			Remarks
	10M0		0~10MPa	A			1500psi
	20M0		0~20MPa	A			3000psi
	28M0		0~28MPa	A			4000psi
	45M0		0~45MPa	A			6500psi
	70M0		0~70MPa	A			10000psi
	Overload pressure		double				Rated pressure
Performance parameters	Parameters		Min	Typical		Max		Units	Mark
	Repeatability		0.01	0.03		0.05		±%FSO	2
	Linearity		0.1	0.15		0.2		±%FSO	1
	Hysteresis		0.01	0.03		0.05		±%FSO	2
	Zero point humidity hysteresis		0.01	0.03		0.05		±%FSO	2,3
	Sensitivity temperature hysteresis		0.01	0.03		0.05		±%FSO	2,3
	Full range span		80	100		120		mv	2,3
	Zero point temperature coefficient TCO		-500	-100		500		ppm/℃	2
	Sensitivity temperature coefficient TCS		-1200	-950		-800		ppm/℃
	Bridge resistance temperature coefficient TCR		1400	1600		1800		ppm/℃	2
Chip size		Pressure range			10MPa~70MPa
		Overall dimensions(mm)			2.5×2.5×2.4
Characteristic parameters		Excitation			2~10V
					0.2~2mA
Bridge resistance		2kΩ~5kΩ
Bridge form		Half open bridge
Operating temperature range		-55℃~180℃
Storage temperature range		-55℃~180℃
Bridge form		Half-open bridge
Suitable medium		Clean, dry and free of corrosive gas

Low Temperature Drift Pressure Chip

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