MS5561-C Datasheet, PDF (1/19 Pages) Intersema Sensoric SA – MICRO ALTIMETER

MS5561-C
MICRO ALTIMETER
• 10 - 1100 mbar / 1 – 110 kPa absolute pressure range
• High accuracy temperature measurement
• Integrated miniature pressure sensor module
4.75 mm x 4.25 mm
• Thin design of 1.6 mm
• Piezo-resistive silicon micro-machined sensor
• 6 coefficients for software compensation stored on-
chip
• 16 bit ADC, sigma delta converter
• 3-wire serial interface
• 1 system clock line (32.768 kHz)
• Low voltage and low power consumption
• RoHS-compatible & Pb-free^*
DESCRIPTION
The MS5561 is a SMD-hybrid device including a precision piezo-resistive pressure sensor and an ADC-Interface
IC. It uses a three-wire serial interface for communication. The module dimensions of 4.75 mm x 4.25 mm and a
height of only 1.6 mm allows for up-to-date SMD design. It provides a 16 bit data word from a pressure and
temperature dependent voltage. The MS5561 is a low power, low voltage device with automatic power down
(ON/OFF) switching. A 3-wire interface is used for all communications with a micro-controller.
FEATURES
APPLICATIONS
• Pressure resolution 0.1 mbar
• Operating temperature -40°C to +85°C
• Supply voltage 2.2 V to 3.6 V
• Low supply current, typ. 4 µA
Standby current < 0.1 µA
• Calibrated temperature and pressure sensor for
2^nd order compensation
• ESD protected, HBM 4 kV
• Mobile phones
• GPS receivers
• Altimeter applications
• Personal Navigation Devices (PND)
• Digital cameras with altimeter function
BLOCK DIAGRAM
SENSOR ^+IN
-IN
SGND
Input MUX
ADC
dig.
Filter
Sensor
Interface IC
Digital
Interface
Memory
(PROM)
64 bits
Fig. 1: Block diagram MS5561
VDD
MCLK
DIN
DOUT
SCLK
GND
*
The European RoHS directive 2002/95/EC (Restriction of the use of certain Hazardous Substances in electrical and electronic equipment) bans
the use of lead, mercury, cadmium, hexavalent chromium and polybrominated biphenyls (PBB) or polybrominated diphenyl ethers (PBDE).
DA5561_03
January 5, 2009
1
000055611126 – ECN1158