LPS22HB

MEMS nano pressure sensor: 260-1260 hPa absolute digital output barometer

Manufacturer

unknown

Overview

Part: LPS22HB (manufacturer not explicitly stated)

Type: MEMS Nano Pressure Sensor / Digital Output Barometer

Key Specs:

Pressure range: 260 to 1260 hPa absolute
Current consumption: down to 3 μA
High overpressure capability: 20x full-scale
Pressure data output: 24-bit
Temperature data output: 16-bit
ODR: 1 Hz to 75 Hz
Supply voltage: 1.7 to 3.6 V
High shock survivability: 22,000 g
Operating temperature range: -40 °C to +85 °C

Features:

Embedded temperature compensation
SPI and I²C interfaces
Embedded FIFO
Interrupt functions: Data Ready, FIFO flags, pressure thresholds
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.

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
Supply voltage: 1.7 to 3.6 V
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

Pin Configuration

Figure 3. Pin connections (bottom view)

LPS22HB Pin description

Table 2. Pin description

Pin number	Name	Function
1	Vdd_IO	Power supply for I/O pins
2	SCL SPC	I ² C serial clock (SCL) SPI serial port clock (SPC)
3	Reserved	Connect to GND
4	SDA SDI SDI/SDO	I ² C serial data (SDA) 4-wire SPI serial data input (SDI) 3-wire serial data input/output (SDI/SDO)
5	SDO SA0	4-wire SPI serial data output (SDO) I ² C less significant bit of the device address (SA0)
6	CS	SPI enable I ² C/SPI mode selection (1: SPI idle mode / I ² C communication enabled; 0: SPI communication mode / I ² C disabled)
7	INT_DRDY	Interrupt or Data Ready
8	GND	0 V supply
9	GND	0 V supply
10	VDD	Power supply

Electrical Characteristics

3.1 Mechanical characteristics

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

Table 3. Pressure and temperature sensor characteristics

Symbol	Parameter	Test condition	Min.	Typ. ⁽¹⁾	Max.	Unit
Pressure se	ensor characteristics	-
PT _op	Operating temperature range		-40		+85	°C
PT _full	Full accuracy temperature range		0		+65	°C
P _op	Operating pressure range		260		1260	hPa
P _bits	Pressure output data			24		bits
P _sens	Pressure sensitivity			4096		LSB/ hPa
P _AccRel	Relative accuracy over pressure	P = 800 - 1100 hPa T = 25 °C		±0.1		hPa
D	Absolute acquire ou ouer temperature	P _op T = 0 to 65 °C After OPC ⁽²⁾		±0.1		- hPa
P _AccT	Absolute accuracy over temperature	P _op T = 0 to 65 °C no OPC ⁽²⁾		±1		- пpa
P _noise	RMS pressure sensing noise ⁽³⁾	with embedded filtering		0.0075		hPa RMS
ODR _Pres	Pressure output data rate ⁽⁴⁾			1 10 25 50 75		Hz
Temperatur	e sensor characteristics
T _op	Operating temperature range		-40		+85	°C
T _sens	Temperature sensitivity			100		LSB/°C
T _acc	Temperature absolute accuracy	T = 0 to 65 °C		±1.5		°C
ODR _T	Output temperature data rate ⁽⁴⁾			1 10 25 50 75		Hz

^1. Typical specifications are not guaranteed.

10/49 DocID027083 Rev 6

^2. OPC: One-Point Calibration, see RPDS_L (18h), RPDS_H (19h).

^3. Pressure noise RMS evaluated in a controlled environment, based on the average standard deviation of 50 measurements at highest ODR and with LC_EN bit = 0, EN_LPFP = 1, LPFP_CFG = 1.

^4. Output data rate is configured acting on ODR[2:0] in CTRL_REG1 (10h).

3.2 Electrical characteristics

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

Table 4. Electrical characteristics

Symbol	Parameter	Test condition	Min.	Typ.(1)	Max.	Unit
VDD	Supply voltage		1.7		3.6	V
Vdd_IO	IO supply voltage		1.7		Vdd+0.1	V
		@ ODR 1 Hz LC_EN bit = 0		12		μA
Idd	Supply current	@ ODR 1 Hz LC_EN bit = 1		3
IddPdn	Supply current in power-down mode			1		μA

^1. Typical specifications are not guaranteed.

Table 5. DC characteristics

Symbol	Parameter	Condition	Min.	Typ.	Max.	Unit
DC input characteristics
Vil	Low-level input voltage (Schmitt buffer)	-	-	-	0.2 * Vdd_IO	V
Vih	High-level input voltage (Schmitt buffer)	-	0.8 * Vdd_IO	-	-	V
	DC output characteristics
Vol	Low-level output voltage		-	-	0.2	V
Voh	High-level output voltage		Vdd_IO - 0.2	-	-	V

3.3 Communication interface characteristics

3.3.1 SPI - serial peripheral interface

Subject to general operating conditions for Vdd and TOP.

Table 6. SPI slave timing values

		Value(1)
Symbol	Parameter	Min
tc(SPC)	SPI clock cycle	100
fc(SPC)	SPI clock frequency
tsu(CS)	CS setup time	6
th(CS)	CS hold time	8
tsu(SI)	SDI input setup time	5
th(SI)	SDI input hold time	15
tv(SO)	SDO valid output time
th(SO)	SDO output hold time	9
tdis(SO)	SDO output disable time
^1. Values are guaranteed at 10 MHz clock frequency for SPI with both 4 and 3 wires, based on characterization results, not tested in production.

Figure 4. SPI slave timing diagram

Note: Measurement points are done at 0.2·Vdd_IO and 0.8·Vdd_IO, for both ports.

12/49 DocID027083 Rev 6

3.3.2 I2C - inter-IC control interface

Subject to general operating conditions for Vdd and TOP.

Table 7. I2C slave timing values

		I²C standard mode(1)		I²C fast mode(1)
Symbol	Parameter (1)	Min	Max	Min
f(SCL)	SCL clock frequency	0	100	0
t w(SCLL)	SCL clock low time	4.7		1.3
t w(SCLH)	SCL clock high time	4.0		0.6
t su(SDA)	SDA setup time	250		100
th(SDA)	SDA data hold time	0	3.45	0
th(ST)	START condition hold time	4		0.6
t su(SR)	Repeated START condition setup time	4.7		0.6
t su(SP)	STOP condition setup time	4		0.6
t w(SP:SR)	Bus free time between STOP and START condition	4.7		1.3
^1. Data based on standard I2C protocol requirement, not tested in production.

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Figure 5. I2C slave timing diagram

Note: Measurement points are done at 0.2·Vdd_IO and 0.8·Vdd_IO, for both ports.

3.4 Absolute maximum ratings

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

Symbol	Ratings	Maximum value	Unit
Vdd	Supply voltage	-0.3 to 4.8	V
Vdd_IO	I/O pins supply voltage	-0.3 to 4.8	V
Vin	Input voltage on any control pin	-0.3 to Vdd_IO +0.3	V
P	Overpressure	2	MPa
TSTG	Storage temperature range	-40 to +125	°C
ESD	Electrostatic discharge protection	2 (HBM)	kV

Note: Supply voltage on any pin should never exceed 4.8 V.

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

![](_page₁3_Picture₉.jpeg)

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

14/49 DocID027083 Rev 6

LPS22HB Functionality

Absolute Maximum Ratings