DPS422数据手册传感器变送器的压力传感器、变送器规格书PDF

描述 Description

The DPS422 is a miniaturized digital barometric air pressure and temperature sensor with high accuracy and low current consumption. 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.

特性 Features

·Package dimensions: 8-pin LGA, 2.0 x 2.5 x 0.73 mm (typ)
·Operation range: Pressure: 300 –1200 hPa. Temperature: -40°C – +85 °C
·Pressure sensor precision: ± 0.005 hPa (or ±5 cm)
·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
·Interface: I2C with optional interrupt, 4-wire SPI, 3-wire SPI with optional interrupt

应用 Application

Local weather station and thermostat (micro weather forecasting; wind speed measurement; room temperature control)
Air flow control (smart filter replacement, e.g. in whitegoods; Servers CPU ventilation control)
Health and sports (fall detection; accurate elevation gain, 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)

简介

DPS422属于传感器变送器的压力传感器、变送器。由制造生产的DPS422压力传感器、变送器压力传感器或变送器用于检测并响应器件上作用力的存在或量变。压力类型有绝对压力、复合压力、差压、表压、密封表压、开关、真空和排气表压，工作压力为 -100 PSI (-689.48 kPa) 至 20000 PSI (137895.15 kPa)。