900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




Infineon Technologies Electronic Components Datasheet

DPS422 Datasheet

Digital barometric pressure & temp sensor

No Preview Available !

DPS422
Digital XENSIVTM barometric pressure & temp sensor for portable and IOT devices
V1.5
Description
The DPS422 is a miniaturized digital barometric air pressure sensor with high accuracy and low current
consumption, capable of measuring both pressure and temperature. Pressure sensing is carried out using a
capacitive sensor element, guaranteeing high accuracy over temperature. The small 2.0 x 2.5 x 0.73 mm
package makes the DPS422 ideal for mobile applications and wearable devices.
The pressure and temperature sensor elements are measured by a 24-bit ΣΔ ADC. Measurement results can be
accessed over I2C or SPI, with an optional configurable interrupt and a result FIFO capable of holding 32
pressure and/or temperature measurements.
Individual calibration coefficients are generated for each unit during testing, and stored in the fuse registers.
These coefficients are used in the application to convert the measurement results to high accuracy pressure
and temperature values.
Features
Operation range: Pressure: 300 –1200 hPa. Temperature: -40°C – +85 °C.
Pressure sensor precision: ± 0.005 hPa (or ±5 cm) (high precision mode).
Relative accuracy: ± 0.06 hPa (or ±50 cm)
Absolute accuracy: ± 1 hPa (or ±8 m)
Temperature accuracy: ± 0.4°C.
Pressure temperature sensitivity: < 0.5Pa/K
Measurement time: Typical: 27.6 ms for standard mode (16x). Minimum: 3.6 ms for
low precision mode.
Average current consumption: 1.7 µA for pressure measurement, 2µA for
temperature measurement @1Hz sampling rate, Standby: <1 µA.
Supply voltage: VDDIO: 1.2 – 3.6 V, VDD: 1.7 – 3.6 V.
Operating modes: Command (manual), Background (automatic), and Standby.
Calibration: Individually calibrated with coefficients for measurement correction.
FIFO: Stores up to 32 pressure or temperature measurements. Streaming or stop-on-
full mode. Optional interrupt on full or watermark interrupt.
Interface: I2C with optional interrupt, 4-wire SPI, 3-wire SPI with optional interrupt.
Package dimensions: 8-pin LGA, dimensions: 2.0 x 2.5 x 0.73 mm (typ).
Green Product (RoHS) Compliant
Typical applications
Local weather station and Thermostat ( Micro weather forecasting; room temperature control)
Air flow control (Smart filter replacement, e.g. in whitegoods; Servers CPU ventilation control)
Health and sports (Accurate elevation gain and vertical speed detection, e.g. for smart watches)
Outdoor navigation (GPS start-up time and accuracy improvement; dead-reckoning e.g. in tunnels)
Indoor navigation ( Floor detection e.g. in shopping malls and parking garages)
Smart Home ( Intruder detection and environmental monitoring of premises)
Datasheet
www.infineon.com
Please read the Important Notice and Warnings at the end of this document
2019-07-03


Infineon Technologies Electronic Components Datasheet

DPS422 Datasheet

Digital barometric pressure & temp sensor

No Preview Available !

DPS422
Digital XENSIVTM barometric pressure & temp sensor for portable and IOT
devices
Product validation
Product validation
Qualified for industrial applications according to the relevant tests of JEDEC47/20/22.
Definitions
An explanation of the terms and definitions used in this datasheet.
Table 1
DPS422 Defintions
Term
Absolute accuracy
Digital bit depth
Digital resolution
Full Scale Range (FSR)
LSB
Measurement time
MSB
Non-linearity
Output compensation
Precision (noise)
Pressure temperature coefficient
Sensor calibration
Sensor oversampling rate (OSR)
Definition/explanation
The absolute measurement accuracy over the entire measurement
range.
The total bit depth used for conversion of the sensor input to the
digital output. Measured in bits.
The pressure value represented by the LSB change in output. This
value should be much smaller than the sensor noise.
The peak-to-peak measurement range of the sensor.
Least Significant Bit
The time required to acquire one sensor output result. This value
determines the maximum measurement rate.
Most Significant Bit
The deviation of measured output from the best-fit straight line,
relative to 1000 hPa and 25 °C.
The process of applying an algorithm to the sensor output to improve
the absolute accuracy of the sensor across temperature and to
minimize unit to unit output variation. This algorithm makes use of
both the temperature sensor readings and the individual calibration
coefficients.
The smallest measurable change, expressed as rms, after sensor
oversampling.
The pressure measurement deviation, after compensation, from
expected measurement value due to temperature change from 25 °C.
Measured in Pa/K.
The process, during the production test, where the sensor's
measurement results are compared against reference values, and a set
of calibration coefficients are calculated from the deviation. The
coefficients are stored in the sensor's memory and are used in the
output compensation.
Specifies the number of sensor measurements used internally to
generate one sensor output result.
Datasheet
2
2019-07-03


Part Number DPS422
Description Digital barometric pressure & temp sensor
Maker Infineon
Total Page 30 Pages
PDF Download

DPS422 Datasheet PDF

View PDF for Mobile








Similar Datasheet

1 DPS422 Digital barometric pressure & temp sensor
Infineon





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy