MS5535C Datasheet, PDF (1/21 Pages) Intersema Sensoric SA – PRESSURE SENSOR MODULE

MS5535C (RoHS^*) PRESSURE SENSOR MODULE
• 0 - 14 bar 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 MS5535C 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. MS5535C 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 MS5535C is fully software compatible to the previous versions (MS5535A and MS5535B). Compared to the
previous versions the ESD sensitivity 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
• 16 Bit ADC resolution pressure measurement
and control systems
APPLICATIONS
• Mobile water depth measurement systems
• Diving computers and divers watches
BLOCK DIAGRAM
SENSOR ^+IN
-IN
SGND
Input MUX
ADC
dig.
Filter
Sensor
Interface IC
Digital
Interface
Memory
(PROM)
64 bits
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).
DA5535C_003.doc
June 16th, 2008
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000055351195 ECN1118