GZP6826A: Amplified Pressure Sensor, Gauge Pressure Type

Sensor Attribute	Attribute Value
Product Category	Board Mount Pressure Sensors
Product Series	GZP6826A
Pressure Type	Absolute Pressure
Pressure Range	0～100…2500kPa (Multiple range)
Output Type	Analog Amplified Voltage
Output Value	0.5～4.5V or 0.2～2.7V or Customized by request
Accuracy	±1%FSS
Supply Voltage	5Vdc or 3.3Vdc
Temperature Compensated	0～60°C
Operating Temperature	-30 to 105°C
Mounting Style	SMD/SMT or Manual Soldering
Measured Media	Non-corrosive gases or liquid
Package/SPQ	Tape/3000pcs

Product Description

The GZP6826A pressure sensor uses a ceramic plate as the base material, integrating a pressure-sensitive chip and a digital conditioning chip. It digitally compensates for the offset, sensitivity, temperature drift and non-linearity of the pressure-sensitive chip, using the supply voltage as a reference, to generate a calibrated and temperature-compensated standard voltage signal.

The internal chip and gold wire of the GZP6826A pressure sensor are coated with fluorosilicone, which can resist water, moisture and oil.

The GZP6826A pressure sensor is small in size and easy to install. It can be calibrated to output signals according to user requirements and is widely used in automotive electronics, household appliances, pneumatic components and other fields.

Function Description

This product is made with advanced micro-electromechanical principles, the key technology is the silicon piezoresistive effect based MEMS pressure sensor chip and high performance signal conditioning AISC chip, the silicon micro-piezoresistive MEMS pressure sensor chip is through the Wheatstone bridge composed of four strain sensitive resistors. The output signal is amplified, temperature compensated and linearised by the ASIC chip, and the linearity of the transfer function and temperature compensation is achieved by the digital processing circuitry in the ASIC. High accurate pressure measurement over the full operating temperature range is achieved by a polynomial compensation algorithm and a multi-point pressure calibration technique at multiple temperatures.

The transfer function of the pressure sensor is created from the following parameters:

Minimum and maximum rated pressure
Output voltage at minimum and maximum rated pressure
Clamp voltage

All parameters required for the complete calibration algorithm (e.g. offset, gain, temperature coefficients of offset and gain, and linearity parameters) are determined after calibration and stored in the E²PROM inside the ASIC.

Applications

Automotive intake system and tire pressure gauge, on-board air pump and other automotive electronic fields

Air pump, vacuum pump, pressure switch, pneumatic control system and industrial equipment, etc.

Fire extinguishers, meteorological stations, navigation and other fields

Other absolute pressure measurement systems