MS5535C (RoHS
*
)
•
•
•
•
•
•
•
•
•
DESCRIPTION
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*
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° to +125° operation temperature
C
C
•
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
VDD
MCLK
Input MUX
SENSOR
+IN
dig.
Filter
Digital
Interface
ADC
DIN
DOUT
SCLK
-IN
Sensor
Interface IC
SGND
Memory
(PROM)
64 bits
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
000055351195 ECN1118
June 16th, 2008
1
INTERSEMA [ INTERSEMA SENSORIC SA ]
