HMI Series Amplified pressure sensors FEATURES · 100 mbar to 10 bar, 1 to 150 psi gage or differential pressure · Increased media compatibility1 · Digital I²C bus output · Precision ASIC signal conditioning · Calibrated and temperature compensated2 · SIL and DIP housings · RoHS compliant · Quality Management System according to ISO 13485:2003 and ISO 9001:2008 MEDIA COMPATIBILITY1,2 High pressure port: To be used with gases and liquids which are compatible with the wetted materials (high temperature polyamide, ceramic AL2O3, epoxy, fluorosilicone, glass, silicon). Low pressure port: To be used with non-corrosive, non-ionic working fluids such as clean dry air, dry gases and the like. ELECTRICAL CONNECTION DIP versions +Vs SPECIFICATIONS Maximum ratings Supply voltage VS HMI...3 HMI...5 Output current Sink Source Environmental Temperature ranges Compensated Operating Storage3 Humidity limits (non-condensing) 1 2.7 ... 4.2 VDC 4.2 ... 5.5 VDC max. 6.5 VDC 3 HMI 8 -20 ... +85 °C -20 ... +85 °C -40 ... +125 °C ...95 %RH10 max. 10 g, 10...2000 Hz, random (EN 60068-2-64) Mechanical shock max. 50 g, 11 ms (EN 60068-2-27) Lead solder temperature max. 270 °C (JESD22-B106D) E / 11802 / B SCL SDA 2 1 mA 1 mA GND SIL versions 100 nF 100 nF +Vs 1 3 (100 % condensing or direct liquid media on high pressure port1) Vibration 5 C SCL HMI 4 SDA 2 GND 100 nF 1/16 www.first-sensor.com www.sensortechnics.com HMI Series Amplified pressure sensors PRESSURE SENSOR CHARACTERISTICS (TA=25 °C, RH=50 %) Part no. Proof pressure4 Operating pressure HMIM100U... HMIM100B... HMIM250U... HMIM250B... HMIB001U... HMIB001B... HMIB2x5U... HMIB005U... HMIB010U... HMIP001U... HMIP001B... HMIP100U... 0...100 mbar 0...±100 mbar 0...250 mbar 0...±250 mbar 0...1 bar 0...±1 bar 0...2.5 bar 0...5 bar 0...10 bar 0...1 psi 0...±1 psi 0...100 psi 2 bar 2 bar 2 bar 2 bar 5 bar 5 bar 10 bar 14 bar 14 bar 3 0 p si 3 0 p si 2 0 0 p si Other pressure ranges (e.g. 500 mbar, 5 psi, 150 psi) are available on request. Please contact First Sensor. PERFORMANCE CHARACTERISTICS2 (TA=25 °C, RH=50 %, for HMI...3 devices (VS=3.0 VDC) digital output signal is non-ratiometric to VS in the range of VS =2.7...4.2 V, for HMI...5 devices (VS=5.0 VDC) digital output signal is non-ratiometric to VS in the range of VS =4.2...5.5 V) Characteristics Non-linearity (-20...85 °C)6 Accuracy7 Total accuracy (-20...85 °C)8 Response delay9 A/D resolution Current consumption Min. Typ. Max. ±0.25 ±0.25 ±1.5 0.5 12 4.5 5.3 HMI...3 HMI...5 Units %FSS ms bi t mA All HMI...U... (unidirectional devices) Characteristics Zero pressure offset Full scale span (FSS)5 Full scale output Min. 2595 29595 Typ. 3000 27000 30000 Max. 3405 Units counts 30405 All HMI...B... (bidirectional devices) Characteristics Zero pressure offset Full scale span (FSS)5 Output at max. specified pressure at min. specified pressure E / 11802 / B Min. 16095 29595 2595 Typ. 16500 27000 30000 3000 Max. 16905 30405 3405 Units counts 2/16 www.first-sensor.com www.sensortechnics.com HMI Series Amplified pressure sensors I²C BUS Introduction DATA valid (D): State of data line represents valid data when, after START condition, data line is stable for duration of HIGH period of clock signal. Data on line must be changed during LOW period of clock signal. There is one clock pulse per bit of data. The HMI is capable to generate a digital output signal. The device runs a cyclic program, which will store a corrected pressure value with 12 bit resolution about every 250 µs within the output registers of the internal ASIC. In order to use the sensor for digital signal readout, it should be connected to a bidirectional I²C-bus. Acknowledge (A): Data is transferred in pieces of 8 bits (1 byte) on serial bus, MSB first. After each byte receiving device – whether master or slave – is obliged to pull data line LOW as acknowledge for reception of data. Master must generate an extra clock pulse for this purpose. When acknowledge is missed, slave transmitter becomes inactive. It is on master either to send last command again or to generate STOP condition in that case. According to the I²C-bus specification, the bus is controlled by a master device, which generates the clock signal, controls the bus access and generates START and STOP conditions. The HMI is designed to work as a slave, hence it will only respond to requests from a master device. Digital I²C interface Slave address: The I²C-bus master-slave concept requires a unique address for each device. The HMI has a preconfigured slave address (1111000xb). By factory programming it is possible to define a secondary slave address additional to the general one. According to I²C specification 127 different addresses are available. The sensor will then listen to both slave addresses. After generating a START condition the master sends the address byte containing a 7 bit address followed by a data direction bit (R/W). A "0" indicates a transmission from master to slave (WRITE), a "1" indicates a data request (READ). The HMI complies with the following protocol (Fig. 1): Bus not busy: During idle periods both data line (SDA) and clock line (SCL) remain HIGH. START condition (S): HIGH to LOW transition of SDA line while clock (SCL) is HIGH is interpreted as START condition. START conditions are always generated by the master. Each initial request for a pressure value has to begin with a START condition. STOP condition (P): LOW to HIGH transition of SDA line while clock (SCL) is HIGH determines STOP condition. STOP conditions are always generated by the master. More than one request for the current pressure value can be transmitted without generation of intermediate STOP condition. DATA operation: The sensor starts to send 2 data bytes containing the current pressure value as a 15 bit information placed in the output registers. SCL SDA START condition Data valid 1 S Slave Address R/W A Data allowed to change Data Byte 1 A STOP condition Data Byte 2 Read out of first pressure value generated by master generated by slave A Data Byte 1 P Read out of n pressure values (optional) S = START condition Data Byte 1 = High Byte (MSB first) A = Acknowledge Data Byte 2 = Low Byte (LSB last) P = STOP condition Fig. 1: I²C bus protocol E / 11802 / B 3/16 www.first-sensor.com www.sensortechnics.com HMI Series Amplified pressure sensors I²C Interface Parameters Parameter Symbol Input high level Input low level Output low level Pull-up resistor Load capacitance @ SDA Input capacitance @ SDA/SCL SCL clock frequency Bus free time between STOP and START condition Hold time (repeated) START condition, to first clock pulse LOW period of SCL HIGH period of SCL Setup time repeated START condition Data hold time Data setup time Rise time of both SDA and SCL Fall time of both SDA and SCL Setup time for STOP condition Min. Typ. Max. 90 0 100 10 10 5 400 10 400 1 C SD A CI2C_IN FSC L tBUF tHD.STA tLOW tHIGH tSU.STA tHD.DAT tSU.DAT tR tF tSU.STO 100* 1.3 0.8 1.3 0.6 1 0 0.2 Unit % of V s kΩ pF kHz µs 0.3 0.3 0.6 * recommended Note: First Sensor recommends communication speeds of at least 100 kHz (max. 400 kHz). Please contact us for further information. tSU;DAT tHD;DAT tSU;STA tHD;STA tR tSU;STO tBUF tHD;STA tF SCL SDA tHIGH tLOW SCL SDA Fig. 2: Timing characteristics E / 11802 / B 4/16 www.first-sensor.com www.sensortechnics.com HMI Series Amplified pressure sensors PHYSICAL DIMENSIONS AND ELECTRICAL CONNECTION 1 2 3 4 HMI...U1... (SIL, axial no ports) Pin 1 2 3 4 Connection +Vs GND SC L SD A first angle projection High pressure E / 11802 / B dimensions in mm 5/16 www.first-sensor.com www.sensortechnics.com HMI Series Amplified pressure sensors PHYSICAL DIMENSIONS AND ELECTRICAL CONNECTION (cont.) HMI...W1... (DIP, axial no ports) 5 4 6 3 7 2 8 1 Pin Connection 1 +Vs 2 GND 3 C 4 I / C* 5 SC L 6 I / C* 7 I / C* 8 SD A * Internal connection. Do not connect for any reason first angle projection High pressure E / 11802 / B dimensions in mm 6/16 www.first-sensor.com www.sensortechnics.com HMI Series Amplified pressure sensors PHYSICAL DIMENSIONS AND ELECTRICAL CONNECTION (cont.) 1 2 3 4 HMI...U7... (SIL, 2 ports axial opposite side, barbed) Pin 1 2 3 4 Connection +Vs GND SC L SD A High pressure port first angle projection dimensions in mm E / 11802 / B 7/16 www.first-sensor.com www.sensortechnics.com HMI Series Amplified pressure sensors PHYSICAL DIMENSIONS AND ELECTRICAL CONNECTION (cont.) 1 2 3 4 HMI...X7... (SIL, 1 port axial, barbed) Pin 1 2 3 4 Connection +Vs GND SC L SD A High pressure port first angle projection dimensions in mm E / 11802 / B 8/16 www.first-sensor.com www.sensortechnics.com HMI Series Amplified pressure sensors PHYSICAL DIMENSIONS AND ELECTRICAL CONNECTION (cont.) HMI...Z7... (DIP, 1 port axial, barbed) 5 4 6 3 7 2 8 1 Pin Connection 1 +Vs 2 GND 3 C 4 I / C* 5 SC L 6 I / C* 7 I / C* 8 SD A * Internal connection. Do not connect for any reason High pressure port first angle projection dimensions in mm E / 11802 / B 9/16 www.first-sensor.com www.sensortechnics.com HMI Series Amplified pressure sensors PHYSICAL DIMENSIONS AND ELECTRICAL CONNECTION (cont.) 1 2 3 4 HMI...U6... (SIL, 2 ports axial opposite side, straight big) Pin 1 2 3 4 Connection +Vs GND SC L SD A High pressure port first angle projection dimensions in mm E / 11802 / B 10/16 www.first-sensor.com www.sensortechnics.com HMI Series Amplified pressure sensors PHYSICAL DIMENSIONS AND ELECTRICAL CONNECTION (cont.) 1 2 3 4 HMI...X6... (SIL, 1 port axial, straight big) Pin 1 2 3 4 Connection +Vs GND SC L SD A High pressure port first angle projection dimensions in mm E / 11802 / B 11/16 www.first-sensor.com www.sensortechnics.com HMI Series Amplified pressure sensors PHYSICAL DIMENSIONS AND ELECTRICAL CONNECTION (cont.) HMI...Z6... (DIP, 1 port axial, straight big) 5 4 6 3 7 2 8 1 Pin Connection 1 +Vs 2 GND 3 C 4 I / C* 5 SC L 6 I / C* 7 I / C* 8 SD A * Internal connection. Do not connect for any reason High pressure port first angle projection dimensions in mm E / 11802 / B 12/16 www.first-sensor.com www.sensortechnics.com HMI Series Amplified pressure sensors PHYSICAL DIMENSIONS AND ELECTRICAL CONNECTION (cont.) 1 2 3 4 HMI...U5... (SIL, 2 ports axial opposite side, needle big) Pin 1 2 3 4 Connection +Vs GND SC L SD A High pressure port first angle projection dimensions in mm E / 11802 / B 13/16 www.first-sensor.com www.sensortechnics.com HMI Series Amplified pressure sensors PHYSICAL DIMENSIONS AND ELECTRICAL CONNECTION (cont.) 1 2 3 4 HMI...X5... (SIL, 1 port axial, needle big) Pin 1 2 3 4 High pressure port Connection +Vs GND SC L SD A first angle projection dimensions in mm E / 11802 / B 14/16 www.first-sensor.com www.sensortechnics.com HMI Series Amplified pressure sensors PHYSICAL DIMENSIONS AND ELECTRICAL CONNECTION (cont.) HMI...Z5... (DIP, 1 port axial, needle big) 5 4 6 3 7 2 8 1 High pressure port Pin Connection 1 +Vs 2 GND 3 C 4 I / C* 5 SC L 6 I / C* 7 I / C* 8 SD A * Internal connection. Do not connect for any reason dimensions in mm E / 11802 / B 15/16 www.first-sensor.com www.sensortechnics.com HMI Series Amplified pressure sensors Specification notes: 1. All wetted materials are selected to give a high level of media compatibility. Media compatibility refers to media inside the pressure port and lid. Improved media compatibility on high pressure port (backward side of sensor chip) since media has no contact to electronic components. Nevertheless tests with the media used in the specific application are recommended. 2. Sensor is calibrated in air, changes in sensor behaviour based on physical effects caused by the specific media can occur. Weight of the media and wetting forces can influence the sensor characteristics. 3. Storage temperature of the sensor without package. 4. Proof pressure is the maximum pressure which may be applied without causing durable shifts of the electrical parameters of the sensing element. 5. Full Scale Span (FSS) is the algebraic difference between the output signal for the highest and lowest specified pressure. 6. Non-linearity is the measured deviation based on Best Fit Straight Line (BFSL). 7. Accuracy is the combined error from non-linearity and hysteresis. Hysteresis is the maximum output difference at any point within the operating pressure range for increasing and decreasing pressure. 8. Total accuracy is the combined error from offset and span calibration, non-linearity, pressure hysteresis, and temperature effects. Calibration errors include the deviation of offset and full scale from nominal values. 9. Max. delay time between pressure change at the pressure die and signal change at the output. 10. Tested 1h, up to 85 °C. Sensors are electronic components and should be handled only in ESD save environments. NOMENCLATURE Series Pressure range Options HMI Calibration M100 100 mbar B Bidirectional M250 250 mbar U Unidirectional B 001 1 bar B 2x5 2.5 bar B 005 5 bar B 010 10 bar P 001 1 p si P 100 1 0 0 p si Housing Porting U SIL, 2 ports axial opposite side (W) DIP, 2 ports axial opposite side X Z (1) no port Grade Voltage H High (3) 3 V 5 5V 7 Barbed (5) Needle big (6) Straight big SIL, 1 port axial DIP, 1 port axial ( ) available on request. Please contact First Sensor. Example: HMI M100 U U 7 H 5 LABEL INFORMATION Digit 1 2 3 4 Series C h ar M I - 5 Pressure range HMI 6 1 p si 7 100 mbar 8 250 mbar A 1 bar B 2.5 bar C 5 bar L 1 0 0 p si M 10 bar 6 7 8 Pressure unit / Housing Porting pressure mode / calibration U bar, U SIL, 1 no port gage/differential, 2 ports axial unidirectional opposite side 7 Barbed B bar, W DIP, 5 Needle big gage/differential, 2 ports axial bidirectional opposite side 6 Straight big X SIL, 1 port, axial 9 10 11 12 13 14 Grade/ voltage Production code - High, 5 V / High, 3 V Z DIP, 1 port axial First Sensor reserves the right to make changes to any products herein. First Sensor does not assume any liability arising out of the application or use of any product or circuit described herein, neither does it convey any license under its patent rights nor the rights of others. E / 11802 / B 16/16 www.first-sensor.com www.sensortechnics.com