LPS22HBTR Pressure Sensor: Specs, Design Guide, and Drop-In Alternatives

Admin · Aug 25, 2026 · 3 min read AI-Assisted · Updated: Aug 25, 2026 · Fact-Checked
LPS22HBTR Pressure Sensor: Specs, Design Guide, and Drop-In Alternatives
LPS22HBTR is a MEMS absolute pressure sensor from STMicroelectronics, measuring 260-1260 hPa with ±0.1 hPa accuracy, 0.01 hPa resolution, and 12 µA current draw. Available now at $1.9091 (1000+).
LPS22HBTR

Quick Answers: What Is the LPS22HBTR and What Are Its Key Verified Specs?

The LPS22HBTR is a MEMS capacitive absolute pressure sensor from STMicroelectronics, measuring 260 to 1260 hPa with a resolution of 0.01 hPa (8 Pa) and accuracy of ±0.1 hPa (typical) at 25°C. It operates from 1.7V to 3.6V, draws only 12 µA at 1 Hz ODR, and supports I2C (up to 400 kHz) and SPI (up to 10 MHz). It is available now from XAIPART at $1.9091 per unit at 1000+ quantities (as of 2026-08-25).

Technical Guide: How to Select, Design In, and Use the LPS22HBTR

The LPS22HBTR is a digital output pressure sensor with an integrated 24-bit ADC and a 128-level FIFO, making it easy to interface with microcontrollers. Its small HLGA package (2.0 x 2.0 x 0.7 mm) suits space-constrained designs.

Selection Criteria

When selecting a pressure sensor, verify the pressure range, accuracy, resolution, supply voltage, current consumption, interface, and package. The LPS22HBTR covers 260-1260 hPa, which suits most barometric applications. Its ±0.1 hPa accuracy and 0.01 hPa resolution enable precise altitude measurements. The wide supply range (1.7-3.6V) allows direct battery operation.

Design-In Steps

1. Connect power (VDD, VDD_IO, GND) with decoupling capacitors. 2. Choose I2C or SPI interface and connect SCL/SPC, SDA/SDI, SA0/SDO, and CS accordingly. 3. Route the INT_DRDY pin to an MCU interrupt for data-ready or threshold events. 4. Provide a small pressure port opening to the environment, avoiding solder mask or conformal coating over the sensing element. 5. Configure ODR (1 Hz to 75 Hz) and FIFO via registers.

Power Consumption Optimization

At 1 Hz ODR, the LPS22HBTR draws only 12 µA. In power-down mode, it draws 1 µA. Use the FIFO to store data and wake the host less frequently, reducing overall system power.

PCB Layout Considerations

Ensure the pressure port is not blocked. Keep the sensing element exposed. Avoid placing components that generate heat nearby to minimize temperature-induced errors.

Alternatives & Comparison: Drop-In Replacements for LPS22HBTR

For a true drop-in replacement, the LPS22HHTR (same die and package) is the best choice. Cross-brand alternatives like BMP388 and MPL3115A2 are not pin-compatible and require PCB changes.

ParameterLPS22HBTRLPS22HHTRBMP388MPL3115A2
Pressure Range260-1260 hPa260-1260 hPa300-1250 hPa20-110 kPa
Accuracy±0.1 hPa (typ)±0.1 hPa (typ)±0.1 hPa (typ)±0.1 hPa (typ)
Resolution0.01 hPa0.01 hPa0.016 hPa0.05 kPa
Supply Voltage1.7-3.6V1.7-3.6V1.71-3.6V1.95-3.6V
Current Consumption (1 Hz)12 µA12 µA3.4 µA40 µA
InterfaceI2C/SPII2C/SPII2C/SPII2C
PackageHLGA 2x2x0.7mmHLGA 2x2x0.7mmLGA-10 2x2x0.8mmLGA-8 3x3x1.1mm
Pin-Compatible-YesNoNo

Summary: The LPS22HHTR is the only pin-compatible drop-in replacement. BMP388 offers lower power but requires PCB rework. MPL3115A2 has a larger package and higher power.

Industry Insight: Market Position, Lifecycle, and Supply Situation

The LPS22HBTR has an active lifecycle status, indicating it is in production and available. XAIPART currently stocks 99,999 units, with a base price of $1.9091 at 1000+ quantities (as of 2026-08-25). Its wide adoption in drones, wearables, and IoT devices suggests strong market demand.

Trends & Outlook: What Buyers Should Watch

As IoT and wearable devices continue to demand lower power and smaller footprints, the LPS22HBTR's 12 µA consumption and 2x2x0.7mm package remain competitive. The trend toward higher accuracy and lower noise may drive adoption of the newer LPS22HH, but the LPS22HBTR remains a cost-effective choice. Buyers should monitor supply availability and consider the LPS22HHTR as a direct replacement.

Frequently Asked Questions

The LPS22HBTR measures absolute pressure from 260 to 1260 hPa. According to the ST datasheet, this range covers typical barometric applications from high-altitude drones to sea-level weather stations.
The LPS22HBTR has an accuracy of ±0.1 hPa (typical) at 25°C. This high accuracy makes it suitable for altimetry and weather monitoring applications where precise pressure readings are critical.
The LPS22HBTR operates from 1.7V to 3.6V. This wide range allows it to be powered directly from a 1.8V or 3.3V rail in portable devices, as stated in the ST datasheet.
The LPS22HBTR consumes only 12 µA at 1 Hz output data rate and 1 µA in power-down mode. This low power consumption is ideal for battery-powered IoT devices, as per the ST datasheet.
The LPS22HBTR supports both I2C (up to 400 kHz) and SPI (up to 10 MHz) interfaces. This flexibility allows easy integration with microcontrollers, as detailed in the ST datasheet.
The LPS22HBTR comes in a compact HLGA package measuring 2.0 x 2.0 x 0.7 mm. This small footprint is ideal for space-constrained designs like wearables and smartphones.
The LPS22HBTR has a resolution of 0.01 hPa (8 Pa). This fine resolution enables detection of very small pressure changes, which is useful for altitude change detection in drones.
The LPS22HBTR operates from -40°C to +85°C. This wide temperature range makes it suitable for outdoor and industrial applications, as per the ST datasheet.
Yes, the LPS22HBTR includes a 128-level FIFO. This FIFO allows the sensor to store pressure data, reducing host processor wake-up frequency and saving power, as described in the ST datasheet.
The LPS22HBTR supports programmable output data rates from 1 Hz to 75 Hz. This allows designers to trade off power consumption and measurement speed, as per the ST datasheet.
LPS22HBTR is available from major distributors such as DigiKey and Mouser. As of 2026-08-06, the price is approximately $2.50 for single-unit quantities, with volume discounts available.
As of 2026-08-06, the LPS22HBTR is priced at $2.50 for 1 unit, $2.25 for 10 units, $2.00 for 100 units, $1.80 for 500 units, and $1.60 for 1000 units, based on distributor data.
The lead time for LPS22HBTR is typically 2-4 weeks from major distributors like DigiKey and Mouser, depending on stock levels. Check the distributor website for real-time availability.
Stock availability for LPS22HBTR varies by distributor. As of 2026-08-06, DigiKey and Mouser typically have stock, but it is recommended to check their websites for current inventory.
For altimetry, the LPS22HBTR offers a resolution of 0.01 hPa and accuracy of ±0.1 hPa, while the BMP388 offers similar accuracy but a wider range (300-1250 hPa). The LPS22HBTR has a smaller package (2x2x0.7mm) and lower power consumption (12 µA vs 3.4 µA for BMP388 at 1 Hz). Choose LPS22HBTR for compact, low-power designs; choose BMP388 if you need a wider pressure range.
The LPS22HH is a newer version with higher accuracy (±0.1 hPa vs ±0.1 hPa) and lower noise, but the LPS22HBTR has a wider pressure range (260-1260 hPa vs 260-1260 hPa). Both are pin-compatible in the same HLGA package, but the LPS22HH has a different I2C address (0x5D vs 0x5C).
Choose LPS22HBTR when you need a smaller package (2x2x0.7mm vs 2x2x0.8mm for BMP388) and lower power consumption (12 µA vs 3.4 µA at 1 Hz). The LPS22HBTR also has a wider pressure range (260-1260 hPa vs 300-1250 hPa). However, if you need a higher maximum output data rate (200 Hz vs 75 Hz), the BMP388 may be better.
The best drop-in replacement for LPS22HBTR is the LPS22HH from STMicroelectronics, which shares the same HLGA package and pinout. The LPS22HH offers improved accuracy and lower noise, making it a direct upgrade. Cross-brand alternatives include the Bosch BMP388 and the NXP MPL3115A2, but verify pin compatibility before use.
The BMP388 can functionally replace LPS22HBTR in many applications, but it is not a pin-compatible drop-in replacement. The BMP388 uses a different package (LGA-10) and pinout, so PCB rework is required. For a true drop-in replacement, use the LPS22HH.
The LPS22HBTR datasheet PDF can be downloaded from the STMicroelectronics website at https://www.st.com/resource/en/datasheet/lps22hb.pdf. It contains full specifications, pinout, and application notes.
The LPS22HBTR pinout is detailed in the datasheet available at https://www.st.com/resource/en/datasheet/lps22hb.pdf. The HLGA package has 10 pins, including VDD, GND, SCL/SPC, SDA/SDI, SA0/SDO, and CS.
The LPS22HBTR can be replaced by the ST LPS22HH, which is a pin-compatible drop-in replacement with improved accuracy. Cross-brand alternatives include the Bosch BMP388 and NXP MPL3115A2, but these are not pin-compatible and require PCB changes.
No, the LPS22HBTR and LPS22HH are different sensors, but they are pin-compatible and share the same HLGA package. The LPS22HH offers higher accuracy (±0.1 hPa vs ±0.1 hPa) and lower noise, but has a different I2C address (0x5D vs 0x5C).
The LPS22HBTR is a MEMS pressure sensor with a range of 260-1260 hPa, accuracy of ±0.1 hPa, resolution of 0.01 hPa, supply voltage of 1.7-3.6V, current consumption of 12 µA at 1 Hz, I2C/SPI interfaces, 24-bit ADC, 128-level FIFO, and operating temperature of -40°C to +85°C. It comes in a 2x2x0.7mm HLGA package.
The best Bosch equivalent for LPS22HBTR is the BMP388, which offers similar pressure range (300-1250 hPa) and accuracy (±0.1 hPa). However, it is not pin-compatible, so PCB rework is required. For a drop-in replacement, use the ST LPS22HH.

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