LPS22HB

Part: LPS22HB from STMicroelectronics

Type: MEMS Nano Pressure Sensor

Description: An ultra-compact piezoresistive absolute pressure sensor functioning as a digital output barometer, offering a 260–1260 hPa pressure range, 24-bit pressure data, 16-bit temperature data, SPI and I²C interfaces, and current consumption down to 3 μA.

Operating Conditions:

• Supply voltage: 1.7 to 3.6 V
• Operating temperature: -40 to +85 °C
• Operating pressure range: 260 to 1260 hPa
• Pressure output data rate: 1 Hz to 75 Hz

Absolute Maximum Ratings:

• Max continuous current: Not applicable

Key Specs:

• Pressure output data: 24 bits
• Pressure sensitivity: 4096 LSB/hPa
• Relative accuracy over pressure: ±0.1 hPa (P = 800 - 1100 hPa, T = 25 °C)
• RMS pressure sensing noise: 0.0075 hPa RMS (with embedded filtering)
• Temperature sensitivity: 100 LSB/°C
• Supply current: 3 μA (typ, @ODR1Hz LC_EN bit = 1)
• SPI clock frequency: up to 10 MHz
• I²C clock frequency: up to 400 kHz (Fast Mode)

Features:

• 260 to 1260 hPa absolute pressure range
• Current consumption down to 3 μA
• High overpressure capability: 20x full-scale
• Embedded temperature compensation
• 24-bit pressure data output
• 16-bit temperature data output
• ODR from 1 Hz to 75 Hz
• SPI and I²C interfaces
• Embedded FIFO
• Interrupt functions: Data Ready, FIFO flags, pressure thresholds
• High shock survivability: 22,000 g
• Small and thin package
• ECOPACK® lead-free compliant

Applications:

• Altimeters and barometers for portable devices
• GPS applications
• Weather station equipment
• Sport watches

Package:

• HLGA-10L (2.0 x 2.0 x 0.76 mm typ.)

• 260 to 1260 hPa absolute pressure range
• Current consumption down to 3 μ A
• High overpressure capability: 20x full-scale
• Embedded temperature compensation
• 24-bit pressure data output
• 16-bit temperature data output
• ODR from 1 Hz to 75 Hz
• SPI and I²C interfaces
• Embedded FIFO
• Interrupt functions: Data Ready, FIFO flags, pressure thresholds

• Altimeters and barometers for portable devices
• GPS applications
• Weather station equipment
• Sport watches

Figure 3. Pin connections (bottom view)

Table 2. Pin description

49

VDD = 1.8 V, T = 25 °C, unless otherwise noted.

Table 4. Electrical characteristics

Table 5. DC characteristics

Table 5. DC characteristics

49

Stress above those listed as 'Absolute maximum ratings' may cause permanent damage to the device. This is a stress rating only and functional operation of the device under these conditions is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability.

Table 8. Absolute maximum ratings

Supply voltage on any pin should never exceed 4.8 V.

Table 8. Absolute maximum ratings

This device is sensitive to mechanical shock, improper handling can cause permanent damage to the part.

This device is sensitive to electrostatic discharge (ESD), improper handling can cause permanent damage to the part.

Note:

In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK ® packages, depending on their level of environmental compliance. ECOPACK ® specifications, grade definitions and product status are available at: www.st.com . ECOPACK ® is an ST trademark.