1907 Westlands Centre, 20 Westlands Road, Quarry Bay, Hong Kong Tel : (+852) 2565 6979 Fax : (+852) 2565 0319 Email : [email protected] Website : www.jlworld.com Page 1 of 5 060105-A3 MPS-150A Uncompensated, Absolute Pressure Sensor Uncompensated, Absolute Pressure Sensor The MPS series of surface mount pressure sensors provides a cost effective method of measuring absolute and or gauge pressure in a fully packaged format. The packaging formats of COB and surface mount cavity packages, provides the product with an application specific footprint that is particularly useful in various sensor applications. The Memstech piezoresistive silicon pressure sensors can be used in most general applications within a variety of industry uses: Data recording, on board and Remote Diagnostics A soft gel coating provides some measure of environmental protection, none the less, it is not recommended to expose this sensor to conditions of high moisture or corrosive chemicals. The sensor is housed in a surface mount package, and uses materials that are compliant with United States of America and European Union standards on hazardous material content. FEATURES The MPS series sensors are uncompensated, and can be used with clean dry gases such as air, nitrogen and other like gases. The product offers a 5 pin open bridge configuration for electrical connection to facilitate analogue calibration of offset and span, if required. A 4 pin closed bridge configuration is also available. 4 choices of footprint facilitate compatibility with existing component layouts. Applications use with voltage sourcing is recommended to give the maximum sensor performance in accuracy with the conservation of battery power in portable applications. A ratiometric signal processing and acquisition system should be used if possible. THE MAIN FIELD OF APPLICATIONS • Competitive Cost ü Mobile altimeter/barometer • Small size ü Weather forecast • Absolute and Gauge Pressure Measurement ü Wristwatch • High Impedance Bridge ü Air balloon • Low power consumption ü Non-Invasive Blood pressure monitoring ü PC board mountable ü 100 mV output (@5V supply) ü Variable package combinations: SMT/COB Document #: DS-SUPS-MPS150A Rev C 1907 Westlands Centre, 20 Westlands Road, Quarry Bay, Hong Kong Tel : (+852) 2565 6979 Fax : (+852) 2565 0319 Email : [email protected] Website : www.jlworld.com Page 2 of 5 060105-A3 MPS-150A Uncompensated, Absolute Pressure Sensor TECHNICAL DATA Maximum ratings Specification Operating Temperature Storage Temperature Supply Voltage Maximum Drive Current Min. -20 -30 +1 - Typ. 3.0 - Max. 85 105 + 12 3 Unit ºC ºC V mA Data Temperature=25±5°C, Relative humidity=45±5% Specification Typical Operating Voltage Operating Pressure Range (Span) Max Over Pressure (3x Span) Zero Pressure Offset @ 3V Temperature coefficient of offset, TCO Temperature coefficient of sensitivity, TCS (see note 6) Bridge Resistance (see note 4) Full Scale Span @3V over 125kPa Sensitivity Non-Linearity Pressure Response Time (to 90% of registration) Warm Up Time (to 90% of span) Offset Stability over 4 hours (after an initial period of 180s stabilization) Thermal Hysteresis Pressure Hysteresis Min. 1.5 0 0 0 0 0 0 0 0 -15 -100 -2500 -6 Typ. 3 8 - Max. 5.5 18 940 125 1.25 55 2800 375 3.75 +15 100 2500 -24 Unit V psiA mmHg kpa bar psiA mmHg kpa bar mV µV/V/ºC ppmFS/ºC %FS/100ºC 4500 60 17 0.92 0.13 40 -0.5 5000 +0.2 5500 85 30 1.57 0.23 68 +0.5 O mV µV/V/mmHg mV//V/psi mV/V/kpa mV/bar %FS - - 20 ms - - 20 ms - 0.25 - %FS -0.3 -0.3 - +0.3 +0.3 %FS %FS 1. Supply voltage DC and AC up to 5kHz, 2. Total error at half span is based on the difference between half span measurement and a straight line projection over the span of the device where NL% = O ( S2 ) − O ( 0 )+2O ( S ) O ( S2 ) x100 3. Top side pressure application 4. Resistance is measured by sourcing a constant current of 0.7mA 5. TCO, TCR & TCS are product tested from 25ºC to 45ºC using constant voltage. 6. Binning in TCS is available as an option in bin ranges of 5%FS/100C as follows: -5… -10 (bin 1), 10… -15 (bin 2), -15… -20 (bin 3), -20… -25 (bin 4) Document #: DS-SUPS-MPS150A Rev C 1907 Westlands Centre, 20 Westlands Road, Quarry Bay, Hong Kong Tel : (+852) 2565 6979 Fax : (+852) 2565 0319 Email : [email protected] Website : www.jlworld.com Page 3 of 5 060105-A3 MPS-150A Uncompensated, Absolute Pressure Sensor ELECTRICAL & PIN LAYOUT – OPTION A Pad Symbol Description 1 Vcc- 2 Vout- 3 Vcc- 4 Vout+ Positive Output (connected to pad 5) 5 Vout+ Positive Output (connected to pad 4) 6 Vcc+ Positive Supply Negative Supply Negative Output Negative Supply *Open bridge layout – pads 1 & 3 must be shorted by the user SPECIFICATION NOTES 1. Operating and storage temperature to strictly not exceed stated values 2. Pressure unit conversion --- 1 atm=101.325 kPa=1013.25 hPa=14.6956 psi 3. Supply voltage DC and AC up to 5KHz. 4. Operating pressure and temperature. The nominal pressure under which the device can be exposed under normal operating conditions. Unless explicitly stated, other specifications are rated over the operating pressure and temperature ranges. 5. Proof pressure and temperature. The extremes of temperature and pressure that the device can withstand without performance degradation. 6. Supply Voltage is the nominal operating voltage. The device output is ratio metric (scales with the supply) within the stated range. 7. Stated Warm up time is a recommended time after power up before measurement stability is reached with the rated accuracy range. 8. Total error at half span is based on the difference between the half span measurement and a straight line projection over the span of the device where NL% = O ( S2 ) − O ( 0 )+2O ( S ) O ( S2 ) x100 9. Accuracy represents the expected deviation of the sensor value from the ideal linear behavior over temperature and pressure, on fixed mounting configurations after pressure and electrical response times and warm up periods are taken into account, and include thermal and pressure linearity and hysteresis effects over the life of the sensor. Document #: DS-SUPS-MPS150A Rev C 1907 Westlands Centre, 20 Westlands Road, Quarry Bay, Hong Kong Tel : (+852) 2565 6979 Fax : (+852) 2565 0319 Email : [email protected] Website : www.jlworld.com Page 4 of 5 060105-A3 MPS-150A Uncompensated, Absolute Pressure Sensor 9. Accuracy represents the expected deviation of the sensor value from the ideal linear behavior over temperature and pressure, on fixed mounting configurations after pressure and electrical response times and warm up periods are taken into account, and include thermal and pressure linearity and hysteresis effects over the life of the sensor. 10 Offset stability represents the proportion of the deviation in offset (zero pressure output) at fixed temperature T=25+-5C, over the life of the sensor, and includes the effects of thermal and pressure hysteresis as well as other sources of drift. 11. Top side pressure application. 12. Resistance is measured by sourcing a constant current of 0.7mA, which represent the typical operating conditions. 13. TCO, TCR & TCS are tested from 0 Deg C to 50 Deg C, based on a linear approximation. 14. Terminology a) OFFSET VOLTAGE (@ 25 °C) Output voltage under no-load / no-pressure (vacuum) conditions. b) OUTPUT SPAN VOLTAGE (@ 25 °C) Difference between rated output voltage at the maximum operating pressure applied and offset voltage. The range of output change expected over the full range of pressure changes that can be applied to the device. c) ZIN (@ 25 °C) Input impedance at no load and ambient pressure conditions d) ZOUT (@ 25 °C) Output impedance at no load and ambient pressure conditions e) LINEARITY (@ 25 °C) Linearity is expressed in terms of the deviation from the straight line connecting the nopressure (vacuum) condition and rated voltage when the pressure is varied from the no-pressure condition to the span pressure. It is expressed as deviation (D1) found when the rated voltage is halved as a ratio to full scale (FS) f) PRESSURE HYSTERESIS (@25°C) Pressure hysteresis is expressed as difference (D2) between the response to an increasing pressure in no-load condition and a reducing pressure as a ratio to full scale (FS) when the pressure is reduced in the no-load condition after the pressure has been increased form the no-load condition to the rated pressure. In other wards the difference in output voltage before the sensor is subjected to rated pressure and immediately after reducing from the rated pressure as a ratio to full scale (FS). g) OFFSET VOLTAGE – TEMPERATURE CHARACTERISTICS. This is the variation in the offset voltage in response to the change in the ambient temperature. It is expressed as the absolute difference (? 1 or ? 2) between the offset voltage at 0°C or at 50 °C and offset voltage at 25 °C, which ever is higher, as a ratio to full scale (FS) |? 1|/FS x 100 or |? 2|/FS x 100, which ever is higher. h) SENSITIVITY – TEMPERATURE CHARACTERISTICS i) This is the variation (full scale <FS> variation) in the sensitivity in response to the change in the ambient temperature. It is expressed as the absolute difference (between FS1 and FS or FS2 and FS) between full scale (FS1,FS2) at 50 °C and full scale at 0°C (FS) , whichever is higher, as a ratio to full scale(FS) at 25°C |FS1-FS/FS x 100 or |FS2-FS|/FS x 100, which ever is higher. Measurements on product for binning purposes are performed at ambient and warm conditions. Document #: DS-SUPS-MPS150A Rev C 1907 Westlands Centre, 20 Westlands Road, Quarry Bay, Hong Kong Tel : (+852) 2565 6979 Fax : (+852) 2565 0319 Email : [email protected] Website : www.jlworld.com Page 5 of 5 060105-A3 MPS-150A Uncompensated, Absolute Pressure Sensor PRODUCT OPTIONS Product Option Interconnect Option Mechanical Option (nominal footprint) Electrical Specifications MPS-150A Open bridge 6x6.7 Standard Packaging Options available TR – Tray MECHANICAL DIMENSIONS A A1 R1 D D1 R3 E1 E E2 b e L TOP VIEW TOP VIEW SYMBOLS A A1 A2 b D D1 E E1 E2 L R1 R2 R3 A2 R2 SIDE VIEW BOTTOM VIEW MILLIMETER e=1.27 BASIC MINIMUM NOMINAL MAXIMUM 2.985 2.350 0.635 0.750 6.650 5.750 5.950 5.750 --1.550 1.750 1.150 --- 3.035 2.400 0.635 0.800 6.700 5.800 6.000 5.800 3.810 1.600 1.800 1.200 0.350 3.100 2.450 0.650 0.850 6.750 5.850 6.050 5.850 --1.650 1.850 1.250 --- MINIMUM INCHES e= 0.050 BASIC NOMINAL MAXIMUM 0.1175 0.0925 0.0250 0.0295 0.2618 0.2263 0.1195 0.0945 0.0250 0.0315 0.2638 0.2283 0.1220 0.0965 0.0256 0.0335 0.2658 0.2303 0.2343 0.2263 --0.0610 0.0689 0.0453 --- 0.2362 0.2283 0.1500 0.0630 0.0709 0.0472 0.0138 0.2382 0.2303 --0.0650 0.0729 0.0492 --- Document #: DS-SUPS-MPS150A Rev C