MS5541C Datasheet, PDF (1/19 Pages) Intersema Sensoric SA – MINIATURE 14 bar MODULE

MS5541C (RoHS^*) MINIATURE 14 bar MODULE
DESCRIPTION
• 0 - 14 bar absolute pressure range
• 6 coefficients for a software compensation stored
on-chip
• Piezoresistive silicon micromachined sensor
• Integrated pressure sensor 6.2x6.4 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*
The MS5541C is the miniature version of MS5535C pressure sensor module. It contains a precision
piezoresistive pressure sensor and an improved version of the 16 Bit Micropower Sensor interface IC known
from the MS5535C. Compared to the previous version the ESD sensitivity has been improved to 4kV on all pins.
In addition to this the MS5541C is from its outer dimensions compatible to the MS54xx series of pressure
sensors. It uses an antimagnetic polished stainless steel ring for sealing with O-ring. The sensor provides 16 Bit
pressure and temperature data via a 3 wire serial interface that can be easily interfaced with 4 Bit low power
microcontrollers. 64 Bit of factory programmed PROM provides calibration data for a highly accurate pressure
and temperature calculation. The MS5541C is fully software compatible to the MS5535C and previous versions
of MS5541.
FEATURES
APPLICATIONS
• Resolution 1.2 mbar
• Supply voltage 2.2 V to 3.6 V
• Operating current < 5uA
• Standby current < 0.1uA
• -40°C to +85°C
• No external components required
BLOCK DIAGRAM
• Diving computers and divers watches
• Mobile water depth measurement systems
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 MS5541C
* _{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).
DA5541C_004.doc
June 16th, 2008
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0005541C1194 ECN1118