1 General description

The MPL115A1S is an absolute pressure sensor with a digital SPI output targeting low-cost applications. A

miniature 5 x 3 x 1.2 mm LGA package is ideally suited for the space constrained requirements of portable

electronic devices. Low current consumptions of 5 μA during Active mode and 1 μA during Shutdown (Sleep)

mode are essential when focusing on low-power applications. The wide operating temperature range spans

from –40 °C to +105 °C to fit demanding environment conditions.

The MPL115A1S employs a MEMS pressure sensor with a conditioning IC to provide accurate pressure

measurements from 50 kPa to 115 kPa. An integrated ADC converts pressure and temperature sensor readings

to digitized outputs via a SPI port. Factory calibration data is stored internally in an onboard ROM. Utilizing the

raw sensor output and calibration data, the host microcontroller executes a compensation algorithm to render

Compensated Absolute Pressure with ±1 kPa accuracy.

The MPL115A1S pressure sensor’s small form factor, low-power capability, precision, and digital output

optimize it for barometric measurement applications.

2 Features

? Digitized pressure and temperature information together with programmed calibration coefficients for host

micro use.

? Factory calibrated

? 50 kPa to 115 kPa absolute pressure

? ±1 kPa accuracy

? 2.375 V to 5.5 V supply

? Integrated ADC

? SPI Interface

? Monotonic pressure and temperature data outputs

? Surface mount RoHS compliant package

3 Applications

? Barometry (portable and desktop)

? Altimeters

? Weather stations

? Hard-disk drives (HDD)

? Industrial equipment

? Health monitoring

? Air control systems