General description
The BMP085 is a high-precision, ultra-low power barometric pressure sensor for use in advanced mobile applications.
With an absolute accuracy of2.5hPa and a noise
level of down to 0.03hPa(which is equivalent to an
altitude change of merely 0.25m) the BMP085 offers superior performance. At the same time the BMP085 features ultra low power consumption of down to
3μA. This and the very small, ultra-thin package make the BMP085 the sensor of choice for any mobile
application requiring precise barometric pressure
measurement, like for example mobile phones, PDAs, personal GPS-based navigation devices and advan-
ced outdoor equipment.
The BMP085 sensor is based on piezo-resistive
MEMS technology for EMC robustness, high accuracy and linearity as well as long term stability.
It comes in an ultra-thin, but robust8-pin ceramic
lead-less chip carrier(LCC) package. The BMP085 is designed to be connected directly to a micro-con-
troller of a mobile device via the I2C bus.
The BMP085 is the direct successor of the successful SMD500 pressure sensor, that marked a new gene- ration of high-precision digital pressure sensors for consumer applications.
Key features BMP085
f Wide barometric pressure range
f Flexible supply voltage rangef Ultra-low power consumptionf Low noise measurement
f Fullycalibrated
一般说明
BMP085是一种高精度，超低功耗大气压力传感器，用于高级移动应用。
具有2.5hPa的绝对精度和噪声
水平下降到0.03hPa（这相当于一个
高度变化只有0.25m），BMP085提供了卓越的性能。同时BMP085具有超低功耗的特点
3μA。这和非常小的，超薄的包使BMP085传感器为任何移动选择
应用需要精确的气压
测量，例如移动电话，PDA，基于个人GPS的导航设备和adv-
ced户外设备。
BMP085传感器基于压阻
MEMS技术的EMC坚固性，高精度和线性度以及长期稳定性。
它采用超薄，但坚固的8针陶瓷
无铅芯片载体（LCC）封装。 BMP085设计为直接连接到微型连接器
通过I2C总线访问移动设备的驱动程序。
BMP085是成功的SMD500压力传感器的直接继承者，标志着用于消费应用的高精度数
