precision semiconductor pressure sensor pf pressure sensor pf (adp1) a wide range of rated pressure, including a minute pressure there are 10 types of sensors covering a wide range of rated pressure from a minute pressure between 4.9 kpa {0.05 kgf/cm 2 }, to a maximum pressure of 980.7 kpa {10 kgf/cm 2 }. realization of highly accurate, linear characteristics this sensor employs a semiconductor strain gauge method, ensuring accurate and linear detection characteristics. it also has excellent repeatability of pres- sure characteristics. ?impressive line-up of models ? taking their place alongside the stan- dard 5k ? bridge resistance models are those with a 3.3k ? resistance which is optimally suited to 5v drive circuits. ?economy model (no glass base) gives outstanding value for consumer appli- ances 40 kpa (0.4 kgf/cm 2 ) and 49 kpa (0.5 kgf/cm 2 ) units are also available. example of pressure characteristics (when the rated pressure is between 98.1 kpa {1.0 kgf/cm 2 } drive current: 1.5 ma rated current; ambient temperature: 25? 77? 0 {0} 0 50 100 49 {0.5} 98.1 {1} output voltage, mv pressure (gauge pressure), (kpa {kgf/cm 2 }) typical applications ?medical equipment: electronic hemody- namometer ?home appliance: vacuum cleaner ?gas equipment: microprocessor gas meter, gas leakage detector ?industrial equipment: absorption device, etc. silicon piezo resistance strain gauge anode junction glass base pressure pressure high reliability die bonding technology very strong, heat resistant body highly reliable wire bonding technology 1 adp1: pf pressure sensor terminal profile and direction 1: dip terminal: dirtection opposite the pressure inlet direction 2: dip terminal: pressure inlet direction rated pressure 0: 4.9 kpa {approx. 0.05 kgf/cm 2 } 1: 14.7 kpa {approx. 0.15 kgf/cm 2 } 2: 34.3 kpa {approx. 0.35 kgf/cm 2 } 3: 49.0 kpa {approx. 0.5 kgf/cm 2 } 4: 98.1 kpa {approx. 1.0 kgf/cm 2 } 5: 196.1 kpa {approx. 2.0 kgf/cm 2 } 6: 343.2 kpa {approx. 3.5 kgf/cm 2 } 7: 490.3 kpa {approx. 5.0 kgf/cm 2 } 8: 833.6 kpa {approx. 8.5 kgf/cm 2 } 9: 980.7 kpa {approx. 10.0 kgf/cm 2 } a: 40.0 kpa {approx. 0.4 kgf/cm 2 } type 1 : standard type (with glass base) 2: economy type (without glass base) ordering information ex. adp bridge resistance nil : 5.0k ? 3 : 3.3k ? part no. bridge resistance 5.0k ? 3.3k ? packing quantity dip terminal: direction opposite the pressure inlet direction terminal pressure dip terminal: pressure inlet direction dip terminal: direction opposite the pressure inlet direction dip terminal: pressure inlet direction inner outer approx. 0.05kgf/cm 2 approx. 0.15kgf/cm 2 approx. 0.35kgf/cm 2 approx. 0.5kgf/cm 2 approx. 1.0kgf/cm 2 approx. 2.0kgf/cm 2 approx. 3.5kgf/cm 2 approx. 5.0kgf/cm 2 approx. 8.5kgf/cm 2 approx. 10.0kgf/cm 2 approx. 0.4kgf/cm 2 approx. 0.5kgf/cm 2 standard type (with glass base) economy type (without glass base) adp1101 ADP1111 adp1121 adp1131 adp1141 adp1151 adp1161 adp1171 adp1181 adp1191 adp1132 adp1201 adp1211 adp1221 adp1231 adp1241 adp1251 adp1261 adp1271 adp1281 adp1291 adp1232 adp11a23 adp12a23 100 pcs. 1,000 pcs. 4.9kpa 14.7kpa 34.3kpa 49.0kpa 98.1kpa 196.1kpa 343.2kpa 490.3kpa 833.6kpa 980.7kpa 40.0kpa 49.0kpa pf pressure sensor 04.11.10 11:32 am page 38
pf (adp1) data 1. characteristics data 1-<1> output characteristics adp1141 drive current: 1.5 ma; temperature: 25 c 77 f 1-<2> offset voltage temperature characteristics adp1141 drive current: 1.5 ma; rating 5%fs 1-<3> sensitivity temperature characteristics (%fs) adp1141 drive current: 1.5 ma; rating 2.5%fs 100 80 60 40 20 0 20 40 49 {0.5} 0 98.1 {1} kpa {kgf/cm 2 } output voltage (mv) rated pressure 4 3 2 1 0 2 1 25 47 0 32 50 122 temperature ( c f ) offset voltage temperature characteristics (%fs) 4 3 2 1 0 2 1 sensitivity temperature characteristics (%fs) 25 47 0 32 50 122 temperature ( c f ) 2. pressure cycle range (0 to rated pressure) tested sample: adp1131, temperature: 25 c 77 f 2 1 0 0 1 2 1 10 5 5 10 5 1 10 6 pressure cycle (cycle) offset voltage range (%fs) output span voltage range (%fs) 2 1 0 0 1 2 1 10 5 5 10 5 1 10 6 pressure cycle (cycle) even after testing for 1 million times, the vari- ations in the offset voltage and output span voltage are minimal. 2-<1> offset voltage range 2-<2> output span voltage range specifications gauge pressure standard type (with glass base) type of pressure type air (for other medium, please consult us.) pressure medium 4.9 rated pressure 0.05 14.7 0.15 34.3 0.35 49.0 0.5 98.1 1.0 196.1 2.0 343.2 3.5 490.3 5.0 833.6 8.5 1.5 times the rated pressure 980.7 10.0 40.0 0.4 twice the rated pressure 49.0 0.5 unit: kpa unit: kgf/cm 2 (approx.) twice the rated pressure max. applied pressure 20 to 100 c 4 to 212 f (no freezing or condensation) ambient temperature 40 to 120 c 40 to 248 f (no freezing or condensation) storage temperature 0 to 50 c 32 to 122 f 5 to 45 c 41 to 113 f 0 to 50 c 32 to 122 f temperature compensation range 1.5 ma dc drive current (constant current) 100 40 mv 43.5 22.5 mv 85 45 mv 40 20 mv output span voltage 20 mv 15 mv 25 mv offset voltage 5000 1000 ? 3300 600 ? 5000 1000 ? 5 to 50 c 7 to 122 f 20 to 100 c 4 to 212 f 20 to 70 c 4 to 158 f 40 to 120 c 70 to 248 f bridge resistance 0.7%fs 0.6%fs 15%fs 10%fs 5.0%fs 2.5%fs 10%fs 1.3%fs 8%fs 2.5%fs 0.5%fs 0.4%fs 0.3%fs 0.2%fs 0.5%fs 0.6%fs 0.3%fs 0.4%fs 0.7%fs linearity pressure hysteresis offset voltage-temperature characteristics (0 to 50 c 32 to 122 f ) sensitivity-temperature characteristics (0 to 50 c 32 to 122 f ) economy type (without glass base) notes) 1. unless otherwise specified, measurements were taken with a drive current of1.5 ma 0.01 ma at a temperature of 25 c 77 f and humidity ranging from 25% to 85%. 2. please consult us if a pressure medium other than air is to be used. 3. this is the regulation which applies within the compensation temperature range. 4. please consult us if the intended use involves a negative pressure. pf pressure sensor 2004.11.1 7:04 pm page 39
pf (adp1) dimentions 1. terminal direction: direction opposite the pressure inlet derection adp11 ( ) 2. terminal direction: pressure inlet direction adp12 ( ) general tolerance: 0.3 .012 mm inch 10.0 .394 atmospheric pressure inlet hole 0.5 dia. .020 dia. pressure inlet hole 0.8 dia. .031 dia. 0.6 .024 8.6 .339 6.0 .236 4.9 .193 3.3 .130 2.54 0.25 .100 .010 2.54 0.25 .100 .010 0.5 0.1 .020 .004 1.2 0.1 .047 .004 1.1 .043 10.16 .400 0.25 .010 0.25 .010 + 0.1 ? 0.05 + .004 ? .002 0 to 15 ? c0.5 .020 r0.5 .020 10.16 .400 2.54 .100 5.08 .200 2.54 .100 6-0.9 dia. 6-.035 dia. 3.0 dia. .118 dia. + 0 ? 0.1 + 0 ? .004 10.0 .394 atmospheric pressure inlet hole 0.5 dia. .020 dia. pressure inlet hole 0.8 dia. .031 dia. 0.6 .024 0.25 .010 8.6 .339 4.0 .157 3.3 .130 0.5 0.1 .020 .004 1.2 0.1 .047 .004 c0.5 .020 r0.5 .020 10.16 .400 2.54 .100 5.08 .200 2.54 .100 6-0.9 dia. 6-.035 dia. 6.0 .236 2.54 0.25 .100 .010 2.54 0.25 .100 .010 0 to 15 ? 10.16 .400 0.25 .010 3.0 dia. .118 dia. + 0 ? 0.1 + 0 ? .004 0.25 .010 + 0.1 ? 0.05 + .004 ? .002 6 dia. .236 dia. 3. terminal connection diagram + output ? output ? input + input r 2 r 1 r 4 r 3 terminal no. name 1 output ( ? ) 2 power supply ( + ) 3 output ( + ) 4 no connection 5 power supply ( ? ) 6 output ( ? ) note: leave terminal 4 unconnected. tolerance: 0.1 .004 tolerance: 0.1 .004 recommended pc board pattern (bottom view) recommended pc board pattern (bottom view) tested item tested condition result environmental characteristics endurance characteristics storage at high temperature left in a 120 c 248 f constant temperature bath 1,000 hrs. passed temperature: time: high temperature/high humidity operation 40 c 104 f , 90% rh 10 6 , rated voltage applied passed temperature/humidity: operation times: dropping resistance 75 cm 29.528 inch 2 times passed dropping height: times: terminal strength 9.8 n {1 kgf}, 10 sec. 4.9 n {0.5 kgf}, left and right 90 1 time passed pulling strength: bending strength: mechanical characteristics vibration resistance 1.5 mm .059 inch 10 to 55 hz x, y, z 3 directions 2 hrs each passed double amplitude: vibration: applied vibration direction: times: storage at low temperature left in a 40 c 40 f constant temperature bath 1,000 hrs. passed temperature: time: humidity left at 40 c 104 f , 90% rh 1,000 hrs. passed temperature/humidity: time: temperature cycle 40 c to 120 c 40 f to 248 f 30 min. 100 passed temperature: 1 cycle: times of cycle: soldering resistance soldered in dip soldering bath 230 c 446 f 5 sec. passed temperature: time: temperature 260 c 500 f 10 sec. passed temperature: time: 3. evaluation test note: for details other than listed above, please consult us. pf pressure sensor 2004.11.1 7:04 pm page 40
pf (adp1) notes 1. mounting use lands on the printed-circuit boards to which the sensor can be securely fixed. 2. soldering 1) due to its small size, the thermal capacity of the pressure sensor dip type is low. therefore, take steps to minimize the effects of external heat. dip soldering bath: max. 260 c 500 f , 5 sec. soldering iron: 260 to 300 c 500 to 572 f (30w) within 5 sec. 2) use a non-corrosive resin type of flux. since the pressure sensor dip type is exposed to the atmosphere, do not allow flux to enter inside. 3. cleaning 1) since the pressure sensor chip is exposed to the atmosphere, do not allow cleaning fluid to enter inside. 2) avoid ultrasonic cleaning since this may cause breaks or disconnections in the wiring. 4. environment consult with us before using or storing the pressure sensor chip in a place exposed to corrosive gases (such as the gases given off by organic solvents, sul- fites, hydrogen sulfides, etc.) which will adversely affect the performance of the pressure sensor chip. 5. quality check under actual loading conditions 1) to assure reliability, check the sensor under actual loading conditions. avoid any situation that may adversely affect its performance. 2) as for test data, please contact us. 6. other handling precautions 1) that using the wrong pressure range or mounting method may result in acci- dents. 2) air can be used directly as a pressure medium. consult with us before using a corrosive gas (such as a gas given off by an organic solvent, sulfite or hydrogen sulfide) as the pressure medium. 3) the pressure sensor chip is posi- tioned inside the pressure inlet. never poke wires or other foreign matter through the pressure inlet since they may damage the chip or block the inlet. avoid use when the atmospheric pres- sure inlet is blocked. 4) leave pin no. 4 unconnected since the pressure sensor chip may be dam- aged if a voltage is applied to this pin. 5) use an operating pressure which is within the rated pressure range. using a pressure beyond this range may cause damage. 6) since this pressure sensor chip does not have a water-proof construction, con- sult with us if it is to be used in a location where it may be sprayed with water, etc. 7) avoid using the pressure sensor chip in an environment where condensation may form. furthermore, its output may fluctuate if any moisture adhering to it freezes. 8) the pressure sensor chip is construct- ed in such a way that its output will fluc- tuate when it is exposed to light. especially when pressure is to be applied by means of a transparent tube, take steps to prevent the pressure sen- sor chip from being exposed to light. 9) avoid using the pressure sensor chip where it will be susceptible to ultrasonic or other high-frequency vibration. 10) since static charge can damage the pressure sensor chip, bear in mind the following handling precautions. when storing the pressure sensor chips, use a conductive material to short the pins or wrap the entire chip in aluminum foil. plastic containers should not be used to store or transport the chips since they readily become charged. when using the pressure sensor chips, all the charged articles on the bench surface and the work personnel should be grounded so that any ambient static will be safely discharged. 11) due to the pressures involved, give due consideration to the securing of the pressure sensor dip type and to the securing and selection of the inlet tube. consult us if you have any queries. application circuit diagram (example) the pressure sensor is designed to con- vert a voltage by means of constant cur- rent drive and then, if necessary, it amplifies the voltage for use. the circuit shown below is a typical example of a circuit in which the pressure sensor is used. op amp op amp op amp constant current circuit unit pressure sensor amplifier circuit unit mounting method the general method for transmitting air pressures differs depending on whether the pressure is low or high. checkpoints for use <1> select a pressure inlet pipe which is sturdy enough to prevent pressure leaks. <2> fix the pressure inlet pipe securely so as to prevent pressure leaks. <3> do not block the pressure inlet pipe. methods of transmitting air pressures when the pressure is low when the pressure is high (4.9 to 98.1 kpa) (196.1 to 980.7 kpa) if a tube is used as the pressure inlet pipe, it may become disengaged. therefore, use a sturdy tube and secure it using o-rings. tube printed- circuit board printed- circuit board o-ring pressure inlet pipe pf pressure sensor 2004.11.1 7:04 pm page 41
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