ASB1200E

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Barometric pressure transducer for SMT Series/Type: ASB 1200 E Ordering code: Date: 2009-08-03 Version: 2  EPCOS AG 2009. Reproduction, publication and dissemination of this publication, enclosures hereto and the information contained therein without EPCOS' prior express consent is prohibited Content of header bars 1 and 2 of data sheet will be automatically entered in headers and footers! Please fill in the table and then change the color to "white". This ensures that the table disappears (invisible) for the customer PDF. Don't change formatting when entering or pasting text in the table and don't add any cell or line in and to it! Identification/Classification 1 (header 1 + top left bar): Pressure sensors Identification/Classification 2 (header 2 + bottom left header bar): Barometric pressure transducer for SMT Ordering code: (top right header bar) Series/Type: (top right header bar) ASB 1200 E Preliminary data (optional): (if necessary) Preliminary data Department: AS SEN PD Date: 2009-08-03 Version: 2

Barometric pressure transducer for SMT ASB 1200 E Preliminary data AS SEN PD 2009-08-03 Please read Cautions and warnings and Page 2 of 8 Important notes at the end of this document .

Applications

/square6 Medical devices /square6 Weather stations /square6 Handheld devices (Mobile, navigation, …)

Features

/square6 Piezoresistive MEMS technology /square6 Measured media: Air, non-aggressive gases (gas humidity Suitable for IP54 applications (gel protected). Unsuitable for substances, which react with glass, silicon, stainless steel, ceramics, aluminum, silicone glue or silicone gel. /square6 Whetstone bridge with mV output, ratiometric to supply voltage /square6 RoHS-compatible, halogen-free /square6 SMT ceramic package for PCB mounting /square6 Outstanding long-term stability Delivery mode /square6 Tray Dimensional drawings 0.5 Ø2.5 Material: PtAg electrical diagram: 4 3 1 2 1.7 0.7 0.8 2.2 1: Vout+ 2: VDD– 3: Vout– 4: VDD+ All dimensions in mm

Barometric pressure transducer for SMT ASB 1200 E Preliminary data AS SEN PD 2009-08-03 Please read Cautions and warnings and Page 3 of 8 Important notes at the end of this document . Technical data Absolute maximum ratings Parameter Symbol Conditions Min. Typ. Max. Unit Supply voltage Maximum supply voltage V DD Without damage 1) 10 V Temperature ranges 2) –40 85 ° C Operating temperature range T a For t <15 min tbd ° C Storage temperature range T st 3) –40 125 ° C Pressure ranges Operating pressure ranges p r Absolute pressure 4) 0 1.2 bar Over pressure pov Absolute pressure 5) 3 p r Burst pressure pberst Absolute pressure 6) 5 p r Electrical specifications Parameter Symbol Conditions Min. Typ. Max. Unit Supply voltage / bridge resistance Operating supply voltage V DD 7) 1.0 3.0 6.0 V Total bridge resistance R S @ 25 ° C 8) 2.6 3.3 4.0 kΩ α Rs 2.1 2.4 2.7 10 –3 /K Temperature coefficient of total bridge resistance β Rs @ 25 ° C 9) 4 6 8 10 –6 /K 2 Output signal @ V DD = 5 V Offset V 0 @ 25 ° C 10) –30 0 +30 mV Sensitivity S @ 25 ° C 13) See next table mV/bar α S –2.5 –2.2 –1.9 10 –3 /K Temperature coefficient of the sensitivity β S @ 25 ° C 15) 3 5 8 10 –6 /K 2 Pressure hysteresis pHys 16) –0.1 0.1 % FS Long-term stability (Full scale normal output FSON = 120 mV) Temperature hysteresis of offset THV 0 17) tbd % FSON Temperature cycle drift of offset TCDV 0 17) tbd % FSON High temperature drift of offset HTDV 0 17) tbd % FSON Long term stability of offset LTSV 0 17) tbd % FSON

Barometric pressure transducer for SMT ASB 1200 E Preliminary data AS SEN PD 2009-08-03 Please read Cautions and warnings and Page 4 of 8 Important notes at the end of this document . Operating pressures and ordering codes Parameter @ 25 ° C, V DD = 5 V Symbol Typ. Units Operating pressure 4) pr 1.2 bar TCV 0 – -8 µV/VK Temperature coefficient of offset voltage 11) [typ] TCV 0 + -6 µV/VK Nonlinearity 14) [typ] L ±0.3 % FS Sensitivity 13) [typ] S 100 mV/bar Product type ASB 1200 E Ordering code B58610A0000A001

Barometric pressure transducer for SMT ASB 1200 E Preliminary data AS SEN PD 2009-08-03 Please read Cautions and warnings and Page 5 of 8 Important notes at the end of this document . Symbols and Terms 1) Maximum power supply V DD This is the maximal allowed voltage, which may be applied to the piezoresistive bridge circuit without damage. 2) Operating temperature range T a This is the operating Temperature range T a,min to T a,max . Because most of the sensor parameters depend on assembling conditions like gluing, wire bonding etc, the die has to be tested over the operating temperature range by the customer fully assembled. For design verification and process control samples are tested over a reduced measuring temperature range of T meas,min to T meas,max . 3) Storage temperature range T st If the pressure sensor dies are stored in the temperature range T st,min to T st,max without applied voltage power supply, this will not affect the performance of the pressure sensor dies. 4) Operating pressure range p r In the operating pressure range 0 to p r,max the pressure sensor die output characteristic is as defined in this specification. 5) Over pressure p OV Pressure cycles in the pressure range 0 to p ov do not affect the performance of the pressure sensor dies. 6) Burst pressure p berst Up to the burst pressure p berst the diaphragm of the sensor die will not be destroyed mechanically. This parameter is tested at room temperature on samples by increasing the applied pressure until the diaphragm is destroyed. 7) Operating power supply V DD The pressure sensor parameters are defined for a power supply voltage of V DD = 5 V. In the operating power supply voltage range V DD,min to V DD,max the ratiometric parameters r(V DD ) like sensitivity, offset voltage and the temperature coefficient of the offset voltage are defined by: ( ) ]V[ 5 V]) V[ 5 ( rVr DD DD = 8) Total bridge resistance R S The total bridge resistance is defined between pad X5 and X2 (see the dimensional drawing in this data sheet) of the closed piezoresistive bridge circuit. The total bridge resistance is in a good approximation the output impedance of the piezoresistive bridge circuit. This parameter is tested completely on a wafer (wafer level test measurement). 9) Temperature coefficients of resistance αα αα Rs and ββ ββ Rs : The temperature coefficients of resistance are tested for design verification on samples over a reduced temperature range T meas ,min = –20 ° C to T meas ,max = 80 ° C with T R = 25 ° C. The temperature coefficients of first and second order are defined with the polynomial: ( ) ( )  °−β+°−α+°== Rs Rs SS C25 TC25 T1)C25 T (R) T (R The coefficients α Rs and β Rs are calculated using the three measurement points of R s(T) at T meas,min , TR and Tmeas,max . 10) Offset voltage V 0 The offset voltage V 0 is the output voltage V out (p = 0 bar abs) at zero absolute pressure and for a bridge voltage power supply V DD = 5 V. For design verification V 0 is measured on samples by extrapolating the output characteristic to zero bar. It should be noted that this parameter may be influenced by the assembly. 11) Temperature coefficient of offset voltage TCV 0 The temperature coefficients of offset voltage are defined for a bridge voltage power supply V DD = 5 V. These parameters strongly depend on assembly conditions like gluing, wire bonding etc. The temperature coefficients of offset voltage are tested for design verification on samples over a reduce temperature range, using the temperature T meas ,min = –20 ° C, T meas ,max = 80 ° C and T R = 25 ° C. Assuming the offset voltage is mainly due to induce stress TCV 0 may be calculated by extrapolating using: ( ) ( )2 21o ss0 )C25 T (v)C25 T (v)C25 (V)C25 T ()C25 T (1)T (V °−+°−+°°−β+°−α+=

Barometric pressure transducer for SMT ASB 1200 E Preliminary data AS SEN PD 2009-08-03 Please read Cautions and warnings and Page 6 of 8 Important notes at the end of this document . α s and β s are the linear and nonlinear temperature coefficient of the sensitivity respectively (see 15) ). Therefore TCV 0 + and TCV 0 – are defined for the measurement temperature range by: C25 T )C25 (V)T (VTCVo max omax o °−=+ C25 T )C25 (V)T (VTCVo min omin o °−=− 12) Full scale value FS omax rout V)p (VFS −= 13) Sensitivity S The sensitivity is defined for a bridge voltage power supply V DD = 5 V. It can be determined by the formula: max r omax rout p V)p (VS −= This parameter is tested for process control on samples. 14) Nonlinearity L This parameter may be influenced by assembly. The nonlinearity is measured using the endpoint method. Assuming a characteristic, this can be approximated by a polynomial of second order, where the maximum is at p x = prmax /2. The nonlinearity is defined at p x = prmax /2, using the equation: max r x omax rout oxout p p V)p (V V)p (VL −− This parameter is tested for process control on samples, mounted on a TO39 base. 15) Temperature coefficient of sensitivity αα αα S and ββ ββ S: These parameters may be influenced by assembly. The temperature coefficients of sensitivity are tested for design verification on samples over a reduced temperature range T meas ,min = –20 ° C to T meas ,max = 80 ° C with T R = 25 ° C. The temperature coefficients of first and second order are defined with the polynomial: ( ) ( )  °−β+°−α+°== SS C25 TC25 T1) C25 T (S) T ( S The coefficients α S and β S are calculated using the three measurement points of S(T) at T meas,min , TR and Tmeas,max . 16) Pressure hysteresis pHys The pressure hysteresis is the difference between output voltages at constant pressure and constant temperature while applying a pressure cycle with pressure steps of p r, min , p 1, p 2, p 3, p r,max , p 3, p 2, p 1, p r, min : FS )p (V)p (VpHys k1 ,out k2 ,out −= This parameter is tested for design verification on samples. 17) Reliability data For long-term stability of offset voltage LTSV 0 please refer to the defined Aktiv Sensor’s standard AS100001 in chapter “Reliability data” on the internet.

Barometric pressure transducer for SMT ASB 1200 E Preliminary data AS SEN PD 2009-08-03 Please read Cautions and warnings and Page 7 of 8 Important notes at the end of this document . Cautions and warnings Storage (general) All pressure sensors should be stored in their orig inal packaging. They should not be placed in harmfu l environments such as corrosive gases nor exposed to heat or direct su nlight, which may cause deformations. Similar effec ts may result from extreme storage temperatures and climatic condition s. Avoid storing the sensor dies in an environment where condensation may form or in a location exposed to corrosive gase s, which will adversely affect their performance. P lastic materials should not be used for wrapping/packing when storing or tr ansporting these dies, as they may become charged. Pressure sensor dies should be used soon after opening their seal and packaging. Operation (general) Media compatibility with the pressure sensors must be ensured to prevent their failure. The use of oth er media can cause damage and malfunction. Never use pressure sensors in atmospheres containing explosive liquids or gases. Ensure pressure equalization to the environment, if gauge pressure sensors are used. Avoid operating t he pressure sensors in an environment where condensation may form or in a location exposed to corrosive gases. These environments adversely affect their performance. If the operating pressure is not within the rated p ressure range, it may change the output characteris tics. This may also happen with pressure sensor dies if an incorrect mo unting method is used. Be sure that the applicable pressure does not exceed the overpressure, as it may damage the pressure sensor. Do not exceed the maximum rated supply voltage nor the rated storage temperature range, as it may dama ge the pressure sensor. Temperature variations in both the ambient conditio ns and the media (liquid or gas) can affect the acc uracy of the output signal from the pressure sensors. Be sure to check the operating temperature range and thermal error s pecification of the pressure sensors to determine their suitability for the application. Connections must be wired in accordance with the te rminal assignment specified in the data sheets. Car e should be taken as reversed pin connections can damage the pressure transmitters or degrade their performance. Contact between the pressure sensor terminals and metals or other materials may cause errors in the output characteristics. Design notes (dies) This specification describes the mechanical, electr ical and physical requirements of a piezoresistive sensor die for measuring pressure. The specified parameters are va lid for the pressure sensor die with pressure appli cation either to the front or back side of the diaphragm as described in the data sheet. Pressure application to the other side may result in differing data. Most of the parameters are influenc ed by assembly conditions. Hence these parameters a nd the reliability have to be specified for each specific application and tested over its temperature range by the customer. Handling/Mounting (dies) Pressure sensor dies should be handled appropriatel y and not be touched with bare hands. They should o nly be picked up manually by the sides using tweezers. Their top sur face should never be touched with tweezers. Latex g loves should not be used for handling them, as this will inhibit the cu ring of the adhesive used to bond the die to the ca rrier. When handling, be careful to avoid cuts caused by the sharp-edged ter minals. The sensor die must not be contaminated dur ing manufacturing processes (gluing, soldering, silk-screen process). The package of pressure sensor dies should not to b e opened until the die is mounted and should be clo sed after use. The sensor die must not be cleaned. The sensor die must not be damaged during the assembly process (especially scratches on the diaphragm). Soldering (transducers, transmitters) The thermal capacity of pressure sensors is normall y low, so steps should be taken to minimize the eff ects of external heat. High temperatures may lead to damage or changes in characteristics. A non-corrosive type of flux resin should normally be used and complete removal of the flux is recomme nded. Avoid rapid cooling due to dipping in solvent. Note that the output signal may change if pressure is a pplied to the terminals during soldering. This listing does not claim to be complete, but merely reflects the experience of EPCOS AG.

The following applies to all products named in this publication: 1. Some parts of this publication contain statements about the suitability of our products fo r certain areas of application . These statements are based on our knowledge of ty pical requirements that are often placed on our products in the areas of application concerned. We nevertheless expressly point out that such statements cannot be regarded as binding statements about the suitability of our products fo r a particular customer application. As a rule, EPCOS is either unfamiliar with individual cu stomer applications or less familiar with them than the customers themselves. For these reasons, i t is always ultimately incumbent on the customer to check and decide whether an EPCOS produ ct with the properties described in the product specification is suitable for use in a particular customer application. 2. We also point out that in individual cases, a malfunction of electronic c omponents or failure before the end of their usual service life cannot be completely ruled out in the current state of the art, even if they are operated as specified. In customer applications requiring a very high level of operational safety and especially in custo mer applications in which the malfunction or failure of an electronic component could endanger h uman life or health (e.g. in accident prevention or life-saving systems), it must therefore be ensured by means of suitable design of the customer application or other action taken by the c ustomer (e.g. installation of protective circuitry or redundancy) that no injury or damage is sustained by third parties in the event of malfunction or failure of an electronic component. 3. The warnings, cautions and product-specific notes must be observed. 4. In order to satisfy certain technical requiremen ts, some of the products described in this publication may contain substances subject to restr ictions in certain jurisdictions (e.g. because they are classed as hazardous) . Useful information on this will be found in our Material Data Sheets on the Internet (www.epcos.com/material ). Should you have any more detailed questions, please contact our sales offices. 5. We constantly strive to improve our products. Co nsequently, the products described in this publication may change from time to time . The same is true of the corresponding product specifications. Please check therefore to what exte nt product descriptions and specifications contained in this publication are still applicable before or when you place an order. We also reserve the right to discontinue production and delivery of products . Consequently, we cannot guarantee that all products named in this publication will always be available. The aforementioned does not apply in the case of in dividual agreements deviating from the foregoing for customer-specific products. 6. Unless otherwise agreed in individual contracts, all orders are subject to the current version of the “General Terms of Delivery for Products and Ser vices in the Electrical Industry” published by the German Electrical and Electronics Industry Association (ZVEI) . 7. The trade names EPCOS, BAOKE, Alu-X, CeraDiode, CSMP, CSSP, CTVS, DSSP, MiniBlue, MiniCell, MKK, MLSC, MotorCap, PCC, PhaseCap, Phase Cube, PhaseMod, PhiCap, SIFERRIT, SIFI, SIKOREL, SilverCap, SIMDAD, SIMID, SineFormer , SIOV, SIP5D, SIP5K, ThermoFuse, WindCap are trademarks registered or pending in Europe and in other countries. Further information will be found on the Internet at www.epcos.com/trademarks.