MS5803-14BA Series Pressure Transducer

Description

Description: The MS5803-14BA is a new generation of high resolution pressure sensors with SPI and I2C bus interface. It is optimized for depth measurement systems with a water depth resolution of 1cm and below. The sensor module includes a high linear pressure sensor and an ultra low power 24 bit ΔΣ ADC with internal factory calibrated coefficients. It provides a precise digital 24 Bit pressure and temperature value and different operation modes that allow the user to optimize for conversion speed and current consumption. A high resolution temperature output allows the implementation of a depth measurement systems and thermometer function without any additional sensor. The MS5803-14BA can be interfaced to any microcontroller. The communication protocol is simple, without the need to programming internal registers in the device. The gel protection and antimagnetic stainless steel cap protects against 30 bar overpressure waterproof. This new sensor module generation is based on leading MEMS technology and latest benefits from the Intersema’s proven experience and know-how in high volume manufacturing of pressure modules have been widely used for over a decade. This sensing principle employed leads to very low hysteresis and high stability of both pressure and temperature signal. Features: • High resolution module, 0.2 mbar • Fast conversion down to 1 ms • Low power, 1 μA (standby < 0.15 μA) • Integrated digital pressure sensor (24 bit Σ ADC) • Supply voltage 1.8 to 3.6 V • Operating range: 0 to 14 bar, -40 to 85 °C • I2C and SPI interface up to 20 MHz • No external components (Internal oscillator) • Excellent long term stability • Hermetically sealable for outdoor devices ABSOLUTE MAXIMUM RATINGS Parameter Symbol Conditions Min. Typ. Max Unit Supply voltage VDD -0.3 4.0 V Storage temperature TS -40 125 °C Overpressure Pmax ISO 6425 30 bar Maximum Soldering Tmax 40 sec max 250 °C Temperature ESD rating Human Body -4 4 kV Model Latch up JEDEC standard -100 100 mA No 78 ELECTRICAL CHARACTERISTICS Parameter Symbol Conditions Min. Typ. Max Unit Operating Supply voltage VDD 1.8 3.0 3.6 V Operating Temperature T -40 25 85 °C OSR 4096 12.5 Supply current IDD 2048 6.3 µA 1024 3.2 (1 sample per sec.) 512 1.7 256 0.9 Peak supply current during conversion 1.4 mA Standby supply current at 25°c 0.02 0.14 µA VDD Capacitor From VDD to GND 100 nF

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