Plastic Sealed Pressure Sensor

Plastic Sealed Pressure Sensor

The plastic packaged pressure sensor adopts MEMS silicon piezoresistive pressure sensing core and a high-resolution 24-bit delta-sigma (ΔΣ) ADC. It is a digital high-precision barometer and altimeter specially developed for consumer applications.

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Introduction

The plastic packaged pressure sensor adopts MEMS silicon piezoresistive pressure sensing core and a high-resolution 24-bit delta-sigma (ΔΣ) ADC. It is a digital high-precision barometer and altimeter specially developed for consumer applications.

Designed with low operating voltage and ultra-low power consumption, this sensor is ideal for battery-powered portable devices, including smartphones, smartwatches, tablets, GPS navigation equipment and outdoor gear.

The sensor features an ultra-compact footprint of 2.0×2.5×1.0 mm³ in an 8-pin LGA package with metal lid. It can detect altitude variations as small as 10 cm, with extremely low temperature coefficient of offset (TCO) and temperature coefficient of sensitivity (TCS). The I2C digital interface enables seamless communication with MCUs.

Features

Pressure Range: 300 hPa ~ 1100 hPa

Package Type: 8-pin LGA with metal lid

Package Dimension: 2.0 × 2.5 × 1.0 mm³

Relative Accuracy: 0.03 hPa, equivalent to ±0.25 m (900~1100 hPa, 25~40°C)

Absolute Accuracy: Typical ±1.0 hPa (300~1100 hPa, 0~60°C)

Temperature Coefficient of Offset (TCO): ±0.3 Pa/K, equivalent to ±2.5 cm/K (0~60°C, 200 hPa)

Temperature Coefficient of Sensitivity (TCS): ±0.5 Pa/K, equivalent to ±4.2 cm/K (0~60°C, 1000 hPa)

Digital Interface: I²C

Supply Current: 5.4 μA at 1 Hz sampling rate

Operating Temperature Range: -40 ~ 125°C

RoHS compliant, halogen-free

Application

Indoornavigation, 3D outdoor navigation (e.g., navigation systems)

Weatherforecasting (e.g., home weather stations)

Healthandmedical (e.g., portable medical devices)

Vertical speed indication (ascent and descent speeds)

Leisureandsports (e.g., smartphones, tablets, sports watches, model airplanes)

Specifications

Parameters Symbolic Conditions Min.value Typical value Max.value Unit
Working Temperature Range TA Operating Temperature -40 25 +125 °C
    Compensation Temperature 0   60 °C
Operating pressure range P   300   1100 hPa
Supply voltage VDD   1.8   3.6 V
Operating current IDD, LP 1 Hz data output rate, minimum pressure and temperature
oversampling rate
  5.4   μA
Peak Temperature Ipeak During pressure Measurement   760   μA
Current during Temperature Measurement IDDT     541   μA
Standby Current IDDSL 25°C   0.1 0.3 μA
Relative Accuracy Arel 900~1100 hPa   ±0.03   hPa
    @25~40°C   ±0.25   m
Zero-point Temperature Coefficient TCO 200 hPa   ±0.3   Pa/K
    @25~40°C   ±2.5   cm/K
Absolute Pressure Accuracy Aabs 300~1100 hPa @0~60°C   ±1   hPa
Resolution (O4Ultra-HighResolution Mode)   Pressure   0.095   Pa
    Temperature   0.01   °C
Pressure Noise VP,full Full bandwidth, O4 ultra-high resolution mode   1.0   Pa
        8.3   cm
  P,filtered Minimum bandwidth, O4 ultra-high resolution mode   0.2   Pa
        1.7   cm
Temperature Absolute Accuracy AT @25°C   ±0.5   °C
    0~60°C   ±1.0   °C
Power Supply Rejection Ratio PSSR Full Voltage (VDD) Range     ±0.005 Pa/mV
Long-term Stability ΔPstab 12 months   ±1   hPa
Reflow Soldering Drift     -0.5   +1 hPa
Sampling Rate Fsample   157 182 TBD Hz
 
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