325561000-00 TE Connectivity

MS5561C Micro Altimeter 10 - 1100 mbar / 1 110 kPa absolute pressure range High accuracy temperature measurement Integrated miniature pressure sensor 4.75 x 4.25 mm Thin design of 1.6 mm Piezoresistive silicon micromachined sensor 6 coefficients for software compensation stored on-chip 16 Bit ADC, sigma delta converter 3-wire serial interface 1 system clock line (32.768 kHz) Low voltage and low power consumption DESCRIPTION The MS5561C is a SMD-hybrid device including a precision piezo-resistive pressure sensor and an ADC- Interface IC. It uses a three-wire serial interface for communication. The module dimensions of 4.75 mm x 4.25 mm and a height of only 1.6 mm allows for up-to-date SMD design. It provides a 16 bit data word from a pressure and temperature dependent voltage. The MS5561C 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 micro-controller. FEATURES APPLICATIONS Pressure resolution 0.1 mbar Mobile phones Operating temperature -40C to +85C GPS receivers Supply voltage 2.2 V to 3.6 V Altimeter applications Low supply current, typ. 4 A Personal Navigation Devices (PND) Standby current < 0.1 A Digital cameras with altimeter function Calibrated temperature and pressure sensor for nd 2 order compensation ESD protected, HBM 4 kV BLOCK DIAGRAM VDD MCLK Input MUX +IN Digital SENSOR DIN Interface DOUT dig. ADC Filter -IN SCLK Sensor Memory (PROM) Interface IC 64 bits SGND GND Fig. 1: Block diagram MS5561C DA5561C 004 www.meas-spec.com May 21, 2012 0005561C1126 ECN1405 1/20 MS5561C Micro Altimeter PIN CONFIGURATION Fig. 2: Pin configuration of MS5561C Pin Name Pin Type Function SCLK 1 I Serial data clock GND 2 G Ground PV (1) 3 N Negative programming voltage PEN (1) 4 I Programming enable VDD 5 P Positive supply voltage MCLK 6 I Master clock (32.768 kHz) DIN 7 I Serial data input DOUT 8 O Serial data output NOTE 1) Pin 3 (PV) and Pin 4 (PEN) are only used by the manufacturer for calibration purposes and should not be connected. ABSOLUTE MAXIMUM RATINGS Parameter Symbol Conditions Min Max Unit Notes Supply voltage V Ta = 25 C -0.3 4 V DD Storage temperature T -40 +85 C 1 S Overpressure P Ta = 25 C 5 bar NOTE 1) Storage and operation in an environment of dry and non-corrosive gases. DA5561C 004 www.meas-spec.com May 21, 2012 0005561C1126 ECN1405 2/20