Pressure Sensor - Model MS5535C0 pages

DA5535C_003.doc June 16th, 2008 1
000055351195 ECN1118
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 APPLICATIONS
• Supply voltage 2.2 V to 3.6 V
• Low supply current
• Mobile water depth measurement systems
• Diving computers and divers watches
• -40°C to +125°C operation temperature
• No external components required
• 16 Bit ADC resolution pressure measurement
and control systems
BLOCK DIAGRAM
VDD
GND
MCLK
SCLK
DOUT
DIN
Input MUX
ADC
Digital
Interface
Memory
(PROM)
64 bits
SENSOR
SGND
+IN
-IN
dig.
Filter
Sensor
Interface IC
* 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).