ND060D

ND Series Differential Middle Pressure Sensors Industrial Applications                 Highly integrated sensor with ADC and DSP Up to 7 Selectable Pressure Ranges per Device Pressure ranges 0.5 psi (34.5 mbar) to 150 psi (10.3 bar) 16-bit resolution (each selected range) Exceptional Zero Stability Integrated 50/60Hz Notch Filter Selectable Bandwidth Filter from 1.0Hz to 200Hz Output Data Rate at 444Hz Total Error Band less than 0.1% FSS Very High Accuracy +/- 0.05% of Selected Range Long Term Stability +/- 0.05% FSS Silicone gel protection on all models Temperature Compensated -20°C to 85°C Supply Voltage Compensation Fully Integrated Compensation Math Standard I2C and SPI Interface Product Summary Based on Superior’s NimbleSense™ architecture, the ND Middle Pressure Series family supports operating temperature down to -20°C and up to 85°C, while increasing pressures up to 150 psi (10.3 Bar). Additionally, the ND utilizes the company’s proprietary Multi-RangeTM technology to create the industry’s widest dynamic range. This wider dynamic range offers multiple pressure ranges in a single package thus minimizing the number of sensor variants required to support the demanding functional requirements of the various industrial market segments. For example, one Multi-Range enabled ND Sensor replaces up to 7 competing products greatly simplifying installation requirements and significantly lowering inventory costs. which is typically 0.05% FSS. The ND Middle Pressure Series has a selectable bandwidth filter from 1Hz to 200Hz, and 16-bit resolution. For added performance, the ND Series has incorporated a 50/60Hz notch filter to minimize the impact of power noise spikes. Finally, the ND Series is an excellent choice for applications requiring the utmost reliability. The ND Series provides a new level of integration combining an advanced piezoresistive sensing element with integrated amplification, ADC, DSP and a digital interface which greatly simplifies customer integration efforts. Advanced digital processing enables new functionality thus simplifying system development, adding manufacturing ease and increasing reliability. Supporting pressure ranges as low as 5 psi to as high as 150 psi, the ND Middle Pressure Series is ideal for a wide variety of industrial applications from air curtains to aeronautics, from environmental chambers to eye surgery equipment, and from UAVs to 3D Printing. Constructed with a high reliability plastic enclosure, the ND Series family provides the ideal combination of very high performance and reliability at extended temperature ranges while ensuring customers have a high volume, cost effective solution optimized for a wide array of industrial requirements. The ND Middle Pressure Series measures dry air and nonaggressive gas pressure with very high accuracy and a stable zero point. Non-linearity is also industry leading www.SuperiorSensors.com 1 ND Series Industrial Middle Pressure Sensors Table of Contents 8 9 10 11 12 13 14 15 Maximum Ratings ................................................................ 2 Suggested Operating Conditions ......................................... 2 Environmental ..................................................................... 2 Equivalent Circuit................................................................. 2 Feature List .......................................................................... 3 Performance Characteristics ............................................... 4 Electrical Characteristics ...................................................... 4 7.1 Supply Characteristics................................................. 4 7.2 Reset Characteristics .................................................. 5 7.3 DAV Characteristics .................................................... 5 7.4 I2C Characteristics ....................................................... 5 7.5 SPI Characteristics ...................................................... 6 Materials.............................................................................. 6 8.1 Wetted Materials........................................................ 6 8.2 Material Compliance .................................................. 6 System Overview ................................................................. 7 Interface .............................................................................. 8 10.1 Reset ........................................................................... 8 10.2 Communication Interface Selection ........................... 8 10.3 SPI Interface................................................................ 8 10.4 I2C Interface ................................................................ 9 10.4.1 I2C Address ....................................................... 9 10.4.2 I2C Communications Model ............................. 9 10.4.3 I2C Clock Stretching ........................................ 10 10.4.4 I2C Bus Compatibility ...................................... 10 10.5 Extended Data Acquisition ....................................... 10 10.5.1 Available Extended Data ................................ 10 10.5.2 SPI Extended Data Read ................................. 10 10.5.3 I2C Extended Data Read ................................. 10 10.6 Control Registers ...................................................... 11 10.6.1 Mode Control Register ................................... 11 10.6.2 Rate Control Register ..................................... 12 10.7 Computing Pressure ................................................. 12 Mechanical and Manufacturing......................................... 13 11.1 Package Dimensions ................................................. 13 11.2 Suggested Pad Layout ............................................... 13 11.3 Pinout ....................................................................... 14 11.4 Reflow Soldering and Handling Conditions .............. 14 11.5 Pick and Place Pick-up Zone ..................................... 14 11.6 Packaging Options .................................................... 15 11.6.1 Tray Packaging ............................................... 15 11.6.2 Tape and Reel ................................................ 16 11.7 Part Identification ..................................................... 16 Packaging Labeling............................................................. 17 Ordering Information ........................................................ 17 Revisions ............................................................................ 18 Warranty............................................................................ 18 www.SuperiorSensors.com Sym Min Max Units Supply Voltage VDDM Gnd-0.3 4.0 V Voltage on I/O Pins VDD > 3.3V VDD ≤ 3.3V VIOML VIOMH Gnd-0.3 Gnd-0.3 5.8 VDD+2.5 V V IIOM -25 25 mA Parameter I/O Current 2 Suggested Operating Conditions Sym Min Max Units VDDOP 2.8 3.5 V TA -20 85 °C Parameter Supply Voltage Temperature 3 Environmental Parameter Sym Min Max Units Temperature Range Compensated Operating Storage TCMP TOP TSTG -20 -20 -40 85 85 85 °C °C °C Humidity (Non-condensing) RHOP 0 95 % RH Vibration (10Hz-2kHz) GVIBE - 15 g Shock (6 ms) GSHOCK - 100 g Life CYLIFE 10M - Pressure Cycles 4 Equivalent Circuit PLOW PHIGH Port A Port B DAV DAV nRST nRST MISO/SDA Sensor (SPI) MOSI/SCL SCK nSS 2 PLOW Port A PHIGH Port B MISO/SDA Sensor (I2C) MOSI/SCL SCK nSS VDD VDD Gnd Gnd VI2C Address FIG-0026C 1 2 3 4 5 6 7 1 Maximum Ratings ND Series Industrial Middle Pressure Sensors 5 Feature List Middle Pressure (psi Ranges) Parameter Sym ND005D ND015D ND030D Units Number of FS Pressure Ranges PNUM 6 6 6 Each Specified FS Range Extents PEXT ±0.5 to ±5 ±1.0 to ±15 ±5.0 to ±30 psi Number of BW Filter Corners BWNUM 8 Each BW Corner Frequency Extents fBWEXT 1.0 to 200 Hz Common Mode Pressure Notes PCM 25 25 25 psi 1 Proof Pressure PPROOF 15 35 100 psi 2 Burst Pressure PBURST 17 40 125 psi 3 Sym ND060D ND100D ND150D Units Notes Number of FS Pressure Ranges PNUM 7 7 6 Each Specified FS Range Extents PEXT ±10 to ±60 ±40 to ±100 ±50 to ±150 psi Middle Pressure Cont'd (psi Ranges) Parameter Number of BW Filter Corners BWNUM 8 Each BW Corner Frequency Extents fBWEXT 1.0 to 200 Hz Common Mode Pressure PCM 25 25 25 psi 1 Proof Pressure PPROOF 150 200 250 psi 2 Burst Pressure PBURST 175 250 300 psi 3 1) Pressure applied to both ports simultaneously without incurring part damage. 2) Pressure at which the sensor will not suffer permanent damage. 3) Pressure if exceeded could cause permanent damage to the sensor. 3 ND Series Industrial Middle Pressure Sensors 6 Performance Characteristics Note: Unless otherwise specified, characteristics specified with VDD = 3.3V, TA = 25C All Series Devices Parameter Sym Units Min Typ Max Notes Accuracy PACC - 0.05 0.2 % RNG 1, 2 Total Error Band TEB - 0.1 0.5 % FSS 3 TEBAZ - 0.05 0.3 % FSS 7 Long Term Stability LTS - 0.05 0.15 % FSS/YR1 8 Thermal Hysteresis THYS - 0.05 - % FSS Pressure Hysteresis PHYS - 0.05 - % RNG Supply Rejection PSR - 0.0002 - % FSS/mV Resolution RES - 16 - bit 4 System ENOB ENOB - 17 - BitRMS 5 Data Update Rate fUPDATE 432 444 456 Hz 6 TEB After AZ 1 1) Percentage of selected range. 2) Uncertainty limited by system noise for ranges of 0.5 inH2O and below. 3) Includes errors of offset, span, hysteresis and thermal effects. 4) Each selected range has the specified resolution 5) ENOB stated for fBW set to 1.0 Hz. 6) The internal update rate is fixed and does not change with range or filter settings. Sampling at lower data rates are possible provided the Nyquist frequency is observed. It is suggested to sample at least 3x the set fBW frequency. 7) Total error band within 24 hours of a sensor auto-zero. Includes all error components of TEB. 8) YR1 is the first year. The most significant drift occurs during the first year and is lessened for each subsequent year. For each subsequent year, use 25% of the prior years' drift figure to estimate the drift for that specific year. 7 Electrical Characteristics 7.1 Supply Characteristics Parameter Sym All Series Devices Min Typ Max Units Supply Current IDD - 5.0 5.5 mA Supply Capacitance CDD - 10 - uF Notes 1 1) Supply capacitance is provided within the part however it is recommended to include a 0.1 uF decoupling cap near the supply pads. www.SuperiorSensors.com 4 ND Series Industrial Middle Pressure Sensors 7.2 Reset Characteristics Min All Series Devices Typ Max Rising Voltage on VDD Falling Voltage on VDD 0.75 1.4 - 1.36 V V tIOD From POR or External Reset - - 40 ms First Response Settling Time tFRD From POR or External Reset - - 80 ms External Reset Low tRSTL 15 - - us Input High Voltage VIH VDD-0.6 - - 2 Input Low Voltage VIL - - 0.6 2 Internal Pull-Up Current IPU - -20 -30 uA 2 Input Capacitance CIN - 7 - pF 2 Min All Series Devices Typ Max Units Notes Parameter Sym Power-On Reset Threshold VPORR VPORF Interface Detect Delay Condition VIN = 0V Units Notes 1 1) The filter settling time to ensure the first reading is completely settled. 2) Input nRST 7.3 DAV Characteristics Parameter Sym Condition Output High Voltage VOH IO = -3 mA VDD-0.7 - - V Output Low Voltage VOL IO = 8 mA - - 0.6 V Min All Series Devices Typ Max 7.4 I2C Characteristics Parameter Sym SCL Clock Frequency fSCL 100 - 250 kHz Clock Stretch Time tCKSTR - 15 100 us Input High Voltage VIH VDD-0.6 - - Input Low Voltage VIL - - 0.6 Output Low Voltage VOL - - 0.6 V Input Capacitance CIO - 7 - pF www.SuperiorSensors.com Condition IO = 8 mA 5 Units Notes ND Series Industrial Middle Pressure Sensors 7.5 SPI Characteristics Min All Series Devices Typ Max IO = -3 mA VDD-0.7 - IO = 8 mA - VIH Input Low Voltage VIL Internal Pull-Up Current IPU Time nSS to First SCK Edge Parameter Sym Output High Voltage VOH Output Low Voltage VOL Input High Voltage Condition Units Notes - V 1 - 0.6 V 1 VDD-0.6 - - 2, 3 - - 0.6 2, 3 - -10 -30 uA tSC 100 - - us Clock Cycle Time tCC 6 - - us Byte to Byte Cycle Time tBC 100 - - us Time Last Clock to nSS High tCN 20 - - us Cycle Time nSS tCS 6 - - us Input Capacitance CIN - 7 - pF VIN = 0V 1) Output MOSI 2) Inputs MISO, SCK, nSS 3) Inputs are 5V compliant. 8 Materials 8.1 Wetted Materials Parameter Wetted Materials All Series Devices PA PB Sym MATWET Epoxy Nylon RTV Silicon Units Notes Units Notes Epoxy Nylon RTV Silicon Gold Sil-Gel 8.2 Material Compliance Sym All Series Devices RoHS REGRoHS RoHS Compliant REACH REGREAC REACH Compliant Parameter www.SuperiorSensors.com 6 2, 3 2 ND Series Industrial Middle Pressure Sensors 9 System Overview The ND Series pressure sensor is a fully integrated pressure acquisition system in a sensor module. The acquisition system includes anti-alias filters, data acquisition, 50/60Hz notch filter, sensor compensation, bandwidth limiting and I/O functions. Refer to the figure below for the ND Series block diagram. User Control Registers Pressure Sensor Anti-Alias Filter Mode Control Δ-Sigma Modulator 1b Va Anti-Alias Filter 3b Range Control 3b BW Control HW Interface Rate Controller Δ-Sigma Modulator Decimation To Enable Rate Control 4 50/60Hz Notch (Sinc1) 4 Compensation FPU with Linearization 4 BW Limit IIR (2nd Order) 2 SPI/I C Interface DAV nRST MISO/SDA MOSI/SCL SCK nSS SAR ADC 26 Term Compensation Coefficients SAR ADC FIG-0011B Vs MCU There are also two user controlled registers that tune the sensor to the specific user requirements. The first register is the Mode Control register that determines the output pressure range, the corner frequency of the bandwidth limiting filter and enables or disables the 50/60Hz notch filter. www.SuperiorSensors.com Rate Control Register Reload Value Internal Update (fUPDATE) Down Counter Zero Data Read 7 S R Q DAV FIG-0012B The second register is the Rate Control register which controls the rate at which the Data Available (DAV) pin is asserted. The internal sensor data update rate of 444 Hz is often much faster than industrial requirements so the Rate Control register can throttle down the rate at which the Data Available pin (DAV) is asserted. The DAV is reset upon each read of the pressure sensor. An internal model of the Rate Controller is illustrated in the figure to the right. ND Series Industrial Middle Pressure Sensors 10 Interface 10.1 Reset Reset timing is shown in the diagram below. The communications method (SPI or I2C) is established during the time just after reset. During this time (tIOD), no communications should take place. Also, the internal filters are settling during the time tFRD and data acquired during this time may not be fully settled. Reset Timing Diagram VPORR VDD VPORF Internal Reset tRSTL _RST tIOD Communications Available tIOD tFRD tFRD FIG-0021A Filters Settled 10.2 Communication Interface Selection The communications interface is selected by interrogating the nSS pin after the internal power on reset delay. If nSS is high, the SPI interface will be selected otherwise (if low) the I2C interface will be selected. Grounding the nSS pin is an acceptable method for selecting the I2C interface. NOTE: The I2C interface supports 10 interface addresses. Refer to section 10.4.1 for the details on I2C address selection. 10.3 SPI Interface The SPI interface uses a 16 bit transfer for all communications. Data is MSB first for both MOSI and MISO data transfers. Refer to the figure below for specific timing requirements. SPI Timing Diagram ts c tcc tbc tcn tcs SCK MOSI Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 MISO Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 FIG-0013A nSS The data communications has been reduced to a simple 16 bit transfer model for reading the pressure output. Each communication cycle consists of master sending the Mode and Rate data to be placed into the sensor Mode Register and Rate Registers respectively. Simultaneously, the sensor sends the pressure data for the master to receive. Refer to the figure below for the data communication model of the ND Series sensor. www.SuperiorSensors.com 8 ND Series Industrial Middle Pressure Sensors The requirement to send the Mode and Rate bytes on each data read cycle is intentional. The purpose is to force the master to send specific data for each communication and prevent inadvertent data from being sent to the sensor. Since a SPI interface will generally re-circulate data through its shift register, the intention is to prevent the pressure output from the sensor from being re-circulated back to the sensor and potentially causing unintended corruption of the intended mode register. SPI Data Diagram SCK MOSI User Mode Byte User Rate Byte MISO Pressure Output High Byte Pressure Output Low Byte FIG-0014A nSS 10.4 I2C Interface The ND Series is compatible with the I2C protocol. For detailed information regarding the I2C protocol, please refer to the Philips I2C Bus Specification, Version 2. 10.4.1 I2C Address I2C Address Selection Table Address Address (decimal) (hex) 5.6 49 0x31 12 48 0x30 27 47 0x2F 51 46 0x2E 100 45 0x2D 100 44 0x2C 100 43 0x2B 100 42 0x2A 100 41 0x29 NoPop 40 0x28 R1 (kΩ) R2 (kΩ) 120 120 120 120 120 56 30 15 5.6 0 The I2C address is set to 0x28 by grounding the SCK line. Other I2C addresses can be established by applying a voltage to the SCK line by use of a resistor divider across the sensor supply voltage. The suggested resistor values and the respective I2C address are shown in the table to the left. Note: R1 is the lower resister of the divider where R2 is the upper resistor of the divider. 10.4.2 I2C Communications Model The sensor is configured as a slave device and as such, the communicating host must be configured as a master. There are two types of possible data transfers, data transfers from the master transmitter to an addressed sensor (WRITE), and data transfers from an addressed sensor to a master receiver (READ). The master device initiates both types of data transfers and provides the serial clock pulses on SCL. The communications model for I2C is similar to that of SPI however, since I2C is a half-duplex protocol, the transfer of information to and from the sensor is separated into two separate communications. This is in contrast to the SPI interface where the transmitted and received data occurs simultaneously to and from the host. Refer to the figure to the right for the data communication model for the ND Series sensors. www.SuperiorSensors.com 9 ND Series Industrial Middle Pressure Sensors 10.4.3 I2C Clock Stretching The figure to the right illustrates the I2C clock stretching by the sensor. At times, the sensor requires additional time to respond to the host and utilizes the clock stretching feature of the I2C protocol. This is accomplished by holding the SCL low after the ACK cycle of a data transfer. Refer to Section 7.4 for the clock stretching timing. Note, the maximum clock stretch time will generally only occur once during the three ACK cycles of a two byte transfer. That is, the balance of ACK's during a multi-byte transfer will generally include the typical clock stretching time. 10.4.4 I2C Bus Compatibility The I2C specification allows any recessive voltage between 3.0 and 5.0 V. Different devices on the bus may operate at different voltage levels. However, the maximum voltage on any port pin must conform to the electrical characteristics specifications (See section 1). The bi-directional SCL (serial clock) and SDA (serial data) lines must be connected to a positive power supply voltage through a pull-up resistor or similar circuit. Every device connected to the bus must have an open-drain or open-collector output for both the SCL and SDA lines, so that both are pulled high (recessive state) when the bus is free. 10.5 Extended Data Acquisition 10.5.1 Available Extended Data For either the SPI or I2C interface, additional data is available beyond the pressure. The means to access this extended data is to continue reading data (either SPI or I2C) beyond the first 16 bits of pressure information. The following table defines the order of the available data and respective format. Data Bytes Format Interpretation Example Pressure 1-2 2 byte, Signed Int See Section 10.7 See Section 10.7 Temperature 3-4 2 byte, Signed Int Fixed Decimal [8.8 bits], Upper 8 bits integer, lower 8 bits fractional. Temperature in °C 1880H (18.80H) = 24.5°C Model 5-12 8 byte, ASCII, null terminated Right reading ASCII with null termination 4EH,44H,30H,30H,35H,44H,00H,xxH = ND005D Serial Number 13-16 4 byte, Hex Unique 4 byte serial for each part 2FD627A4H Build Number 17-22 6 byte, ASCII, null terminated Right reading ASCII with null termination 30H,31H,34H,37H,41H,00H = 0147A 10.5.2 SPI Extended Data Read Reading the extended data while using the SPI interface is the same as shown in Section 10.3 with exception that the master continues to read during the same nSS sequence to read all 22 bytes of the extended data. Any portion of the 22 bytes can be read during the transfer. That is, for example, 4 bytes could be read to acquire only the pressure and temperature information. When reading the extended data, only the first two bytes sent to the sensor (User Mode and User Rate) are used to set the internal registers. The subsequent bytes (bytes 5 through 22) are ignored. Data read following the first 22 bytes is undefined. 10.5.3 I2C Extended Data Read Reading the extended data via the I2C interface is similar to using the SPI interface where the master can simply continue to reading the sensor during the pressure reading transfer. The master continues Ack'ing until the number of desired bytes are read. www.SuperiorSensors.com 10 ND Series Industrial Middle Pressure Sensors 10.6 Control Registers 10.6.1 Mode Control Register Mode Control Register Detail Default Value: 0xF3 Details of the Mode Control register are illustrated in the figure to the right. Mode Register (General) b7 b6 b5 b4 b3 b2 b1 b0 Pressure Range Select Bits 0-2 control the output pressure range. Bit 3 is the I/O Watchdog Enable bit. When set, the I/O watchdog is enabled. When enabled, the I/O watchdog will monitor the I/O activity. If I/O activity is not detected for the I/O Watchdog timeout time, the pressure sensor will reset itself. The I/O watchdog timeout time is determined by the currently active bandwidth setting. I/O Watchdog Enable BW Limit Select Notch Enable Mode Register (Detail) b7 b6 b5 b4 b3 b2 b1 b0 Bits 4-6 control the BW Limit Filter. ND005D Bit 7 is the Notch Filter Enable bit. When enabled, the 50/60Hz notch filter is active. Please note the available pressure ranges for the different sensor models are indicated in the table. For values where the pressure range is not available for the given sensor (high or low), the table is highlighted in light orange and indicates the given full scale value to use for pressure conversion. It is possible to use these values. Pressure Range Select (by Model) ND015D ND030D ND060D ND100D ND150D 0 0 0 0.5 psi 1.0 psi 5.0 psi 10.0 psi 40 psi 50 psi 0 0 1 0.5 psi 1.0 psi 5.0 psi 10.0 psi 40 psi 50 psi 0 1 0 0.5 psi 1.0 psi 5.0 psi 15.0 psi 50 psi 50 psi 0 1 1 0.8 psi 2.0 psi 10.0 psi 20.0 psi 60 psi 60 psi 1 0 0 1.0 psi 4.0 psi 15.0 psi 30.0 psi 70 psi 75 psi 1 0 1 2.0 psi 5.0 psi 20.0 psi 40.0 psi 80 psi 100 psi 1 1 0 4.0 psi 10.0 psi 25.0 psi 50.0 psi 90 psi 125 psi 1 1 1 5.0 psi 15.0 psi 30.0 psi 60.0 psi 100 psi 150 psi I/O Watchdog Enable It should also be noted that upon changing the Mode Control value, there is a one cycle latency before the new Mode Control value becomes valid. That is, the data of the communication cycle following a change to the Mode Control register will not reflect the change. It is not until the second communication cycle that the change in the Mode Control register will be reflected in the output data. 0 Disabled 1 Enabled BW Limit Select I/O Watchdog Timeout 0 0 0 1.0 Hz 1 sec 0 0 1 2.0 Hz 500 ms 0 1 0 5.0 Hz 200 ms 0 1 1 10 Hz 200 ms 1 0 0 20 Hz 200 ms 1 0 1 50 Hz 200 ms 1 1 0 100 Hz 200 ms 1 1 1 200 Hz 200 ms www.SuperiorSensors.com Notch Filter Disabled 1 Notch Filter Enabled 11 FIG-0123A Notch Enable 0 ND Series Industrial Middle Pressure Sensors 10.6.2 Rate Control Register Default Value: 0x1C Rate Control Register Detail The Rate Control Register controls the rate at which the DAV pin is asserted indicating new data is available. This register is primarily used to throttle down the actual data transfer rate (when using the DAV as the trigger to sample) since the general industrial requirement is less than the internal 444 Hz update rate. The function of this register is that it is the reload value of a data rate counter. The value of the Rate Control Register is the divisor of the 444 Hz internal data rate. Since a divisor of zero is not possible, a zero value will select the auto-select rate mode. In this mode, the rate is selected based on the selected bandwidth limit. The auto rate value is roughly 3x the corner frequency of the selected bandwidth limit in all auto selected rates (where possible). b6 b5 b4 b3 b2 b1 b0 0 0 0 0 0 0 0 0 Auto Select 0 0 0 0 0 0 0 1 444 Hz 0 0 0 0 0 0 1 0 222 Hz 0 0 0 0 0 0 1 1 148 Hz 1 1 1 1 1 1 1 0 1.75 Hz 1 1 1 1 1 1 1 1 1.74 Hz Note: Start-up time for the sensor is approximately 80ms for the first sample to be settled. Requesting data during this time will result in invalid information. However, this start-up time can be used for configuring the Mode and Rate registers by performing a transfer with the desired Mode and Rate register values and discarding the received pressure data. After waiting the required start-up time, the sensor will respond with desired data since the Mode and Rate registers have been pre-established. Selected BW Limit Auto Select Rate 1.0 Hz 3.0 Hz 2.0 Hz 6.0 Hz 5.0 Hz 15.3 Hz 10 Hz 31.7 Hz 20 Hz 63.4 Hz 50 Hz 148 Hz 100 Hz 444 Hz 200 Hz 444 Hz FIG-0084A Rate Control Register b7 10.7 Computing Pressure The pressure data is in the form of 16 bit signed integer sent in high byte then low byte order. This is a differential output by definition and the data range is ±215. There is a 10% margin in the output scaling and the selected full scale will reside in the 90% band of the total available output data range. Refer to Equation 1 (below) for the general model for computing the output pressure. As an example, if the sensor output is 3,647 counts and the selected pressure range is 1.0 inH2O, then the output pressure is 0.124 inH2O. Conversely, for a -3,647 count with the selected pressure range of 1.0 inH2O, the computed output pressure is -0.124 inH2O. Refer to Example 1 (below) for the specific example computation. 𝐸𝐸𝐸𝐸 1: 𝑃𝑃𝑖𝑖𝑖𝑖𝑖𝑖2𝑂𝑂 = 𝑂𝑂𝑂𝑂𝑂𝑂𝐷𝐷𝐷𝐷𝐷𝐷𝐷𝐷𝐷𝐷𝐷𝐷𝐷𝐷 www.SuperiorSensors.com 90% ∗ 215 ∗ 𝑅𝑅𝑅𝑅𝑅𝑅𝑅𝑅𝑅𝑅𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆 𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸 1: 𝑃𝑃𝑖𝑖𝑖𝑖𝑖𝑖2𝑂𝑂 = 12 3,647 90% ∗ 215 ∗ 1 𝑖𝑖𝑖𝑖𝑖𝑖2 𝑂𝑂 = 0.124 𝑖𝑖𝑖𝑖𝑖𝑖2 𝑂𝑂 ND Series Industrial Middle Pressure Sensors 11 Mechanical and Manufacturing 11.1 Package Dimensions 11.2 Suggested Pad Layout The suggested pad layout is shown in the figure below. An Eagle PCB symbol library is available with the shown pad dimensions. Please consult the factory to obtain the library. www.SuperiorSensors.com 13 ND Series Industrial Middle Pressure Sensors 11.3 Pinout Pin Sym 1 nSS 2 3 4 5 6 7 8 9 10 11 MOSI/SCL MISO/SDA SCK DNC DNC DNC Gnd VDD nRST DAV SPI I 2C Slave Select Tie to Ground (active low) MOSI SCL MISO SDA Serial Clock See Section 10.4.1 Do Not Connect Do Not Connect Do Not Connect Ground Sensor Supply Reset (active low) Data Available 11.4 Reflow Soldering and Handling Conditions Parameter Sym Val Units Soldering Specifications (Max) Preheat Ramp Rate Soak Time Time Above 217C Time Above 230C Time Above 250C Peak Temperature Cooling Ramp Rate tPHRR tSOAK tGT217 tGT230 tGT250 tPT tCRR 3 3 50 40 15 255 -4 °C/s min s s s °C °C/s Weight WPRT 3.5 gm Moisture Sensitivity MSL 3 ESD (Human Body Model) ESD 2 kV 11.5 Pick and Place Pick-up Zone www.SuperiorSensors.com 14 ND Series Industrial Middle Pressure Sensors 11.6 Packaging Options 11.6.1 Tray Packaging www.SuperiorSensors.com 15 ND Series Industrial Middle Pressure Sensors 11.6.2 Tape and Reel 11.7 Part Identification www.SuperiorSensors.com 16 ND Series Industrial Middle Pressure Sensors 12 Packaging Labeling Packaging labels are provided with barcode Code 128 symbology. The provided fields are Company Name, Part Number, Packaging ID and Quantity. The Packaging ID traces back to the Lot Number (or Lot Numbers) contained in the package. The purpose is to eliminate multiple labels (one for each included Lot Number) in the event of multiple Lot Numbers within a single package. This is for ease of customer tracking and maintenance. The Packaging ID is a 24 bit value printed in hexadecimal format. 13 Ordering Information Part Number ND005D-SM02 ND015D-SM02 ND030D-SM02 ND060D-SM02 ND100D-SM02 ND150D-SM02 www.SuperiorSensors.com Part Package SM02 SM02 SM02 SM02 SM02 SM02 Packaging Packaging Qty Order Number Tape and Reel Multi-Tray Single Tray Quarter Reel Cut Tape 256 512 64 64 1-63 ND005D-SM02-R ND005D-SM02-M ND005D-SM02-T ND005D-SM02-Q ND005D-SM02-C Tape and Reel Multi-Tray Single Tray Quarter Reel Cut Tape 256 512 64 64 1-63 ND015D-SM02-R ND015D -SM02-M ND015D -SM02-T ND015D -SM02-Q ND015D -SM02-C Tape and Reel Multi-Tray Single Tray Quarter Reel Cut Tape 256 512 64 64 1-63 ND030D-SM02-R ND030D -SM02-M ND030D -SM02-T ND030D -SM02-Q ND030D -SM02-C Tape and Reel Multi-Tray Single Tray Quarter Reel Cut Tape 256 512 64 64 1-63 ND060D-SM02-R ND060D -SM02-M ND060D -SM02-T ND060D -SM02-Q ND060D -SM02-C Tape and Reel Multi-Tray Single Tray Quarter Reel Cut Tape 256 512 64 64 1-63 ND100D-SM02-R ND100D -SM02-M ND100D -SM02-T ND100D -SM02-Q ND100D -SM02-C Tape and Reel Multi-Tray Single Tray Quarter Reel Cut Tape 256 512 64 64 1-63 ND150D-SM02-R ND150D -SM02-M ND150D -SM02-T ND150D -SM02-Q ND150D -SM02-C 17 ND Series Industrial Middle Pressure Sensors 14 Revisions Rev A Change Description(s) Initial Release Date By 12/16/21 T.S. 15 Warranty Superior Sensor Technology and its subsidiaries warrant goods of its manufacture as being free of defective materials and faulty workmanship during the applicable warranty period. In all cases, Superior Sensor Technology's standard product warranty applies; please refer to your order acknowledgement or consult your local sales office for specific warranty details. If warranted goods are returned to Superior Sensor Technology during the period of coverage, Superior Sensor Technology will repair or replace, at its option, without charge those items that Superior Sensor Technology, in its sole discretion, finds defective. The foregoing is buyer’s sole remedy and is in lieu of all other warranties, expressed or implied. In no event shall Superior Sensor Technology be liable for consequential, special, or indirect damages. While Superior Sensor Technology may provide application assistance personally, through literature or the Superior Sensor Technology web site, it is buyer's sole responsibility to determine the suitability of the product in their application. Superior Sensor Technology assumes no liability for applications assistance or customer product design. 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