MS5534C Datasheet, PDF (1/21 Pages) Intersema Sensoric SA – BAROMETER MODULE

MS5534C (RoHS^*)
BAROMETER MODULE
• 10 - 1100 mbar absolute pressure range
• 6 coefficients for software compensation stored
on-chip
• Piezoresistive silicon micromachined sensor
• Integrated miniature pressure sensor 9 x 9 mm
• 16 Bit ADC
• 3-wire serial interface
• 1 system clock line (32.768 kHz)
• Low voltage and low power consumption
• RoHS-compatible & Pb-free^*
DESCRIPTION
The MS5534C is a SMD-hybrid device including a piezoresistive pressure sensor and an ADC-Interface IC. It
provides a 16 Bit data word from a pressure and temperature dependent voltage. Additionally the module
contains 6 readable coefficients for a highly accurate software calibration of the sensor. MS5534C 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 microcontroller.
The MS5534C is fully software compatible to the previous versions (MS5534A and MS5534B). Compared to the
previous versions the ESD sensitivity level has been improved to 4kV on all pins.
FEATURES
• Supply voltage 2.2 V to 3.6 V
• Low supply current
• -40°C to +125°C operation temperature
• No external components required
APPLICATIONS
• Mobile altimeter / barometer systems
• Weather control systems
• Adventure or multi-mode watches
• GPS receivers
BLOCK DIAGRAM
SENSOR ^+IN
-IN
Input MUX
ADC
dig.
Filter
Digital
Interface
VDD
MCLK
DIN
DOUT
SCLK
SGND
Sensor
Interface IC
Memory
(PROM)
64 bits
GND
Fig. 1: Block diagram MS5534C.
* _{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).
DA5534C_003.doc
June 16th, 2008
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0005534C1175 ECN1118