ZPA2326-0311A-R

Data Sheet ZPA2326-0311A-R ZPA2326-0311A-R Barometric Pressure Sensor ZPA Series Features Applications  Very low current consumption  Mobile/Wearable device  Very stable in temperature drift  Weather forecasting  Very low noise  Indoor navigation  Small size SMD package  Z-axis detection (L2.3 x W2.6 x H0.875 mm)  Falling Detection   t Overview Our product is capacitive type MEMS pressure sensor. It consists of a MEMS element, a Capacitor-to-Digital Converter (CDC) and a digital block with the digital correction, calibration non-volatile memory bits, FIFO, SPI and I2C interfaces. A pressure value can be acquired by the product calculating using two kinds of capacitance value, Csense and Cref, outputted from the MEMS element. It can offer low current consumption, low drift for temperature change and low noise performance. Implementing full calibration function is included in ASIC. So it is very easy to use. Attention: This datasheet is downloaded from the website of Murata Manufacturing Co., Ltd. Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering. http://www.murata.com Doc..No. DM-S16-193 Rev.1 201608 1 / 31 Data Sheet ZPA2326-0311A-R TABLE OF CONTENT 1. Introduction 1 2. Specifications 3 2.1 Mechanical and electrical characteristics 2.2 Absolute maximum ratings 2.3 DC/AC characteristics for inputs and outputs 3. Measurement direction 6 3.1 Technical description 3.2 Typical application circuit 3.3 Connecting components information 3.4 Digital interfaces 3.5 I2C interface 3.6 I2C operation 3.7 SPI interface 3.8 SPI read 3.9 SPI write 3.10 SPI read in 3-wires mode 3.11 FIFO operation 3.12 Interrupt operation 3.13 Heading2 3.14 Register description 4. Dimension, Land Pattern and Pin Description 26 4.1 Package outline 4.2 Pin description 4.3 Recommended land pattern 4.4 Recommended reflow-soldering profile 5. Packing 28 5.1 External Dimensions of Career Tape 5.2 External Dimensions of Reel 6. CAUTION 30 6.1 Notice in handling 6.2 Notice in storage 6.3 Notice in application 6.4 Note Attention: This datasheet is downloaded from the website of Murata Manufacturing Co., Ltd. Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering. http://www.murata.com Doc..No. DM-S16-193 Rev.1 201608 2 / 31 Data Sheet ZPA2326-0311A-R 2. Specifications 2.1 Mechanical and electrical characteristics Table 1. Characteristics list (At the time of Shipment) Parameter Package size Area Temperature range Operating Full accuracy Condition Min. Typ. Max. 2.3x2.6 Height Units mm 0.95 mm -40 +85 degC -10 +65 degC 2.0 V 0.0 V Supply voltage (*1) VDD 1.71 Negative supply voltage VSS 0.0 1.8 Interface SPI / I2C SPI frequency 1 MHz I2C frequency 400 kHz FIFO depth Operation range 300 Pressure resolution 24x16 Bits 1100 hPa 1/64 Pa Relative accuracy T=+25degC, P range= 800 to1100hPa ΔP=100hPa +/-0.1 hPa Absolute accuracy T= -10 to 65degC, P range= 800 to1100hPa +/-0.8 hPa Temperature drift coefficient T= +10 to 65degC, P= 1000hPa Absolute value 0.8 Pa/degC ODR Capacitance conversion time (* 2) Current consumption (*3) Pressure RMS noise (*4) Power-Up time One-shot 11 23 S/s 41.5 83 166 ms Device disabled 0.4 µA Device enabled. No measurements running. 19.5 µA Conversion time=1s 31.7 µA Conversion time=1/6s 6.3 µA Conversion time=1/12s 3.8 µA Conversion time=1s 0.5 Parms Conversion time=1/6s 1.1 Parms Conversion time=1/12s 2.1 Parms Waiting time from ENABLE bit set to ‘1’ to next SPI/I2C access. 1 ms Solder drifts -0.5 hPa Temperature resolution (*5) 0.1 degC Temperature conversion time Temperature absolute accuracy Temperature noise (*6) 3.4 3.5 3.6 ms T= -10 to 10degC -4 +4 degC T= 10 to 65degC -2.5 +2.5 degC T= -10 to 65degC 0.05 degCrms Attention: This datasheet is downloaded from the website of Murata Manufacturing Co., Ltd. Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering. http://www.murata.com Doc..No. DM-S16-193 Rev.1 201608 3 / 31 Data Sheet ZPA2326-0311A-R Note: *1. The rise time for this supply must be much more than 10μs. *2. Typical conversion time corresponds to an ODR of 11S/s, minimum conversion time corresponds to an ODR of 23S/s; and maximum conversion time corresponds to an ODR whether 5S/s and 1S/s. The output when selecting ODR=1S/s is built by averaging of 5 samples measured at 5S/s. *3. With One-shot mode (ODR=1S/s) at 1 sample/sec, T=25±2degC. *4. For P= 1000hPa. The RMS noise is related to the CSENSE measurement. *5. The measured temperature follows the equation : Temp[degC] = Tempcode・0.00649 – 176.83 where Tempcode is the digital 16b code which can be read from the registers TEMP_OUT_H and TEMP_OUT_L. *6. The outputted temperature by temperature sensor is product internal value. 2.2 Absolute maximum ratings Table 2. Absolute maximum rating Parameter Condition Storage temperature Supply voltage VDD Input/output pin voltage ESD rating HBM Min. Max. Units -40 +95 degC -0.3 +3.6 V -0.3 VDD+0.3 V -2 +2 kV 10,000 hPa Overpressure Note: 1. All voltage values are based on GND potential. 2. Do not use the sensor of deviating from the above mentioned ratings. 2.3 DC/AC characteristics for inputs and outputs Digital inputs Table 3. CMOS digital input with Schmitt-trigger (CS, SCLK/SCL, SDIN/SDA) Parameter Symbol Condition High level input voltage V_IH Low level input voltage V_IL Negative-going threshold VT_N VDD=2.0V Positive-going threshold VT_P VDD=2.0V Input leakage current I_LEAK Min. Max. 0.7*VDD Low level input voltage=0.0V Units V 0.3*VDD V 0.63 0.975 V 1.132 1.323 V -1 +1 µA Attention: This datasheet is downloaded from the website of Murata Manufacturing Co., Ltd. Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering. http://www.murata.com Doc..No. DM-S16-193 Rev.1 201608 4 / 31 Data Sheet ZPA2326-0311A-R Digital outputs Table 4. CMOS digital output (INT, SDIN/SDA) Parameter Symbol High level output voltage V_OH Low level output voltage V_OL Output drive strength I_OH Output drive strength Pull-up resistor Condition Min. Max. VDD-0.5 Units V VSS+0.4 V VDD=2.0V and min V_OH at pin 4 mA I_OL VDD=2.0V and max V_OL at pin 4 mA Rpup For SDIN/SDA Rise time Tr (2) (1) (1)Standard-mode. For 1000 SDIN/SDA;(3) ns (1)Fast-mode. For SDIN/SDA;(3) Capacitance load CL 20 300 (1)For SDIN/SDA, includes 10pF 400 pF Max. Units from the internal PAD Table 5. CMOS digital output tri-state(SDOUT/SA0) Parameter Symbol High level output voltage V_OH Low level output voltage V_OL Output drive strength I_OH Output drive strength Tri-state leakage current Condition Min. VDD-0.5 V VSS+0.4 V VDD=2.0V and min V_OH at pin 4 mA I_OL VDD=2.0V and max V_OL at pin 4 mA I_OZ To VSS 0.4 µA -0.4 Note: 1. The maximum value of the pull-up resistor is defined by the following equation: 2. The minimum value of the pull-up resistor is defined as (VDDpull-up is the voltage connected to the pull-up resistor): 3. For a selected Rp, which must to be Rpmin