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SPA06-003
Digital pressure sensor
Pb-free, halogen-free and RoHS compliant
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Restricted
1. Security warning
The information contained in this document is the exclusive property of Goermicro electronics
Inc. and should not be disclosed to any third party without the written consent of Goermicro
electronics Inc.
2. Publication history
Version
Date
Description
Ver1.0
2023.03.24
New design
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Index of Contents
1. INTRODUCTION ........................................................................................................................................................ 5
2. ABSOLUTE MAXIMUM RATINGS ........................................................................................................................... 6
3. ELECTRICAL CHARACTERISTICS ........................................................................................................................ 6
4. OPERATION ............................................................................................................................................................... 7
4.1 OPERATING MODES .................................................................................................................................................. 8
4.2 MEASUREMENT PRECISION AND RATE ........................................................................................................................ 8
4.3 SENSOR INTERFACE .......................................................................................................................................................... 9
4.3.1 I2C interface ...................................................................................................................................................... 9
4.3.2 SPI interface .................................................................................................................................................... 10
4.4 INTERRUPT ................................................................................................................................................................. 12
4.5 FIFO OPERATION ...................................................................................................................................................... 13
4.6 CALIBRATION AND MEASUREMENT COMPENSATION ................................................................................................. 13
4.6.1
How
to
Calculate
Compensated Pressure
V
alues
................................................................................. 13
4.6.2 How to Calculate Compensated Temperature Values ............................................................................... 14
4.6.3 Compensation Scale Factors ........................................................................................................................ 15
4.6.4 Pressure and Temperature calculation flow ................................................................................................ 16
5 APPLICATIONS ........................................................................................................................................................ 17
5.1 MEASUREMENT SETTINGS AND USE CASE EXAMPLES ............................................................................................ 17
5.2 APPLICATION CIRCUIT EXAMPLE ............................................................................................................................... 18
5.3 CALCULATING ABSOLUTE ALTITUDE AND CALCULATING PRESSURE AT SEA LEVEL .................................................... 20
6 REGISTER MAP ....................................................................................................................................................... 21
7 REGISTER DESCRIPTION ..................................................................................................................................... 22
7.1 PRESSURE DATA (PRS_BN) ..................................................................................................................................... 22
7.1.1 PRS_B2 ........................................................................................................................................................... 22
7.1.2 PRS_B1 ........................................................................................................................................................... 22
7.1.3 PRS_B0 ........................................................................................................................................................... 23
7.2 TEMPERATURE DATA (TMP_TN) ............................................................................................................................... 23
7.2.1 TMP_B2 ........................................................................................................................................................... 23
7.2.2 MP_B1 .............................................................................................................................................................. 24
7.2.3 TMP_B0 ........................................................................................................................................................... 24
7.3 PRESSURE CONFIGURATION (PRS_CFG) ............................................................................................................... 24
7.4 TEMPERATURE CONFIGURATION (TMP_CFG) ........................................................................................................ 26
7.5 SENSOR OPERATING MODE AND
S
TATUS
(MEAS_CFG) .................................................................................... 28
7.6 INTERRUPT AND FIFO CONFIGURATION (CFG_REG) ............................................................................................. 29
7.7 INTERRUPT STATUS (INT_STS) ............................................................................................................................... 30
7.8 FIFO STATUS (FIFO_STS) ....................................................................................................................................... 31
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7.9 SOFT RESET AND FIFO FLUSH (RESET) ................................................................................................................. 31
7.10 PRODUCT AND REVISION ID (ID) .............................................................................................................................. 32
7.11 CALIBRATION COEFFICIENTS (COEF) ...................................................................................................................... 33
8 MECHANICAL CHARACTERISTICS ..................................................................................................................... 34
8.1 PIN CONFIGURATION .................................................................................................................................................. 34
8.2 OUTLINE DIMENSIONS ................................................................................................................................................ 35
9 STORAGE AND TRANSPORTATION .................................................................................................................... 36
10 SOLDERING RECOMMENDATION ....................................................................................................................... 36
11 PACKAGE SPECIFICATIONS .............................................................................................................................. 37
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1. Introduction
The SPA06-003 is a miniaturized Digital Barometric Air Pressure Sensor with a high accuracy and a low
current consumption. The SPA06-003 is both a pressure and a temperature sensor. The pressure sensor
element is based on a capacitive sensing principle which guarantees a high precision during temperature
changes. The small package makes the SPA06-003 ideal for mobile applications and wearable devices.
The SPA06-003‘s internal signal processor converts the output from the pressure and temperature sensor
elements to 24-bit results. Each pressure sensor has been calibrated individually and contains calibration
coefficients. The coefficients are used in the application to convert the measurement results to true
pressure and temperature values.
The SPA06-003 has a FIFO that can store the latest 32 measurements. By using the FIFO, the host
processor can remain in a sleep mode for a longer period of time between readouts. This can reduce the
overall system power consumption. Sensor measurements and calibration coefficients are available
through the serial I2C or SPI interface.
Key features
Pressure range: 300 ... 1100hPa (+9000m ... -500m relating to sea level)
Temperature Range: -40…+85°C
Supply voltage: 1.7 ... 3.6V (VDD), 1.08... 3.6V (VDDIO)
Package: LGA package with metal lid
Small footprint: 2.0mm x 2.5mm; Super-flat:0.95mm
Relative accuracy: typ.±0.03hPa, equiv. to ±0.25 m
Absolute accuracy: typ. ±0.3hPa (300 … 1100hPa)
Temperature accuracy: typ. ± 1°C.
Pressure temperature sensitivity: typ. 0.5Pa/K
Measurement time: 3.6ms for low precision mode
Average current consumption: 1.7 μA for pressure measurement,1.5 μA for temperature
measurement at 1Hz sampling rate, 1x oversampling rate, Standby: 0.5 μA
I2C and SPI interface, Embedded 24-bit ADC
FIFO: Stores latest 32 pressure or temperature measurements
Pb-free, halogen-free and RoHS compliant
MSL 1
Typical applications
Enhancement of GPS navigation (dead-reckoning, slope detection, etc.)
In-door and out-door navigation
Leisure and sports
Weather forecast
Vertical velocity indication (rise/sink speed)
Specific notes
Particles can influence the performance of the pressure sensor, we strongly recommend you to introduce
special measures to avoid deposition of particles on the MEMS membrane or screen particles after
assembly as the assembly process is considered to be the main root cause for particle generation.
