AGS1 1-AXIS ACCELERATION SENSOR Ultra-small devices [ p i m i t eI s ] GS1 SENSOR FEATURES APPLICATIONS 1. High precision and high sensitivity 5% FS overall accuracy and 1 V/g detection sensitivity. 2. High reliability Detection errors due to temperature fluctuation reduced to a minimum. 3. Compact size 6.2 (L) mm x 8.5 (W) mm x 1.6 mm (H) (typ.) 1. Car navigation system Distinguish between regular roads and highways (inclination sensor) 2. Automotive control Skid prevention system, 4 WD-ABS, Rollover prevention system (inclination and acceleration detection) 3. Other applications LCD projectors (trapezoidal compensation), Elevators, Medical caregiving devices (inclination detection) RoHS Directive compatibility information http://www.nais-e.com/ ORDERING INFORMATION AGS 1 1 1 5 1 Number of detectable axis (Method) 1: 1-axis Acceleration Sensor (Electrostatic capacitance method) Package type/Size 1: Ceramic package/6.2 x 8.5 mm Detection sensitivity 1: 1 V/g Operation power supply voltage/Output type 5: 5 V DC/Analog output Type 1: Built-in ASIC PRODUCT TYPES Product name 1-axis Acceleration sensor GS1 Operation power supply voltage 5 V DC Acceleration detection range 2g Detection sensitivity Part number 1 V/g AGS11151 MAXIMUM RATING Item Maximum allowable voltage Storage temperature range Operation temperature range Anti-shock characteristic Unit V C C g min. -0.3 -40 -40 5,000 Standard value typ. -- -- -- -- All Rights Reserved (c) COPYRIGHT Matsushita Electric Works, Ltd. max. 7 85 85 Remarks Ta=25C AGS1 ELECTRICAL CHARACTERISTICS g V mA V/g V/g V V % %FS min. -2 4.75 -- 0.97 -0.05 2.4 -0.125 -5 -1 Standard value typ. -- 5 5 1 -- 2.5 -- -- -- max. 2 5.25 7 1.03 0.05 2.6 0.125 5 1 ms -- -- 10 Hz DC 60 -- Item Unit Acceleration detection range Operation power supply voltage Current consumption Sensitivity Temperature sensitivity characteristic Offset voltage (0 g) Offset voltage temperature characteristic Other axis sensitivity Non-linearity Note 3) Turn-on time Note 4) Frequency response Note 5) Remarks -40 to 85C 0g, Ta=25C Ta=25C -40 to 85C Ta=25C -40 to 85C Ta=25C Ta=25C 0g, Ta=25C C1=220nF, C2=27nF -3dB point, C2=27nF Notes: 1. The acceleration unit "g" means 9.8 m/s . 2. VDD=5 V when there is no indication. 3. Maximum error from linear output that connects +2 g and -2 g output. 4. "C1" is a ceramic capacitor installed between the VDD and GND terminals. "C2" is a ceramic capacitor installed between the Vout and Ext-Cap terminals. 5. The frequency characteristics can by changed depending on the C2 capacitance value. Please refer to "Recommended circuit diagram" on the following page. Note that the maximum frequency response is 200 Hz. 2 REFERENCE DATA 2. Inclination angle - Output voltage characteristics 3.5 3.0 2.5 2.0 1.5 1.0 -1.0 -0.5 0.0 0.5 Acceleration, G 1.0 4. Sensitivity temperature characteristics (Typical value) 0.150 4.0 3.5 3.0 2.5 2.0 0.100 0.050 0.000 -0.050 1.5 -0.100 1.0 -100 -80 -60 -40 -20 0 20 40 60 80 100 Inclination angle, -0.150 -60 -40 5. Frequency characteristics (Typical value) 0.00 0.060 (C2=27nF) -1.00 0.040 Gain, dB Sensitivity range, V/g 3. Offset voltage temperature characteristics (Typical value) Offset voltage range, V 4.0 Output voltage (measured value), V Output voltage (measured value), V 1. Output characteristics 0.020 0.000 -2.00 -3.00 -4.00 -0.020 -5.00 -0.040 -0.060 -60 -40 -20 -6.00 0 20 40 60 Temperature, C 80 100 -7.00 1 10 Frequency, Hz 60 100 Note: The frequency characteristics can by changed depending on the C2 capacitance value. Please refer to "Recommended circuit diagram" on the following page. All Rights Reserved (c) COPYRIGHT Matsushita Electric Works, Ltd. -20 0 20 40 60 Temperature, C 80 100 AGS1 DIMENSIONS 14 6.2 .244 mm inch Terminal No. 8 AGS11151 050907 1 7 8.5 .335 1.6 .063 1 NC GND NC Vout Ext-Cap GND NC Terminal No. Recommended PC board pad Abbreviation NC VDD NC NC NC NC NC 0.8 .031 7 10-.020 4.2 .165 1.6 .063 14 8 P1.27x4 P.500x4 Tolerance: 0.2 .008 RECOMMENDED CIRCUIT DIAGRAM DC5V Sensor Output C1: 220nF Min. VDD Vout GND Ext -Cap C2: 27nF 0.7 .028 1.4 .055 Leave terminal "NC (No. 1, 3, 7, 8 and 10 to 14)" unconnected. The No. 2 and No. 6 terminals are connected internally. 10-0.5 4-0.5 4-.020 Abbreviation The frequency characteristics value can by changed depending on the C2 capacitance value. -3dB bandwidth is expressed in the formula below. 1 f-3dB= All Rights Reserved (c) COPYRIGHT Matsushita Electric Works, Ltd. 0.8 .031 6.9 .272 8.10.06 .319.002 P1.270.05x4=5.08 P.050.002x4=.200 AGS1 NOTES To ensure reliability, please verify quality under conditions of actual use. 1. Mounting Use lands on the printed-circuit boards to which the sensor can be securely fixed. 2. Soldering Take steps to minimize the effects of external heat. Damage and changes to characteristics may occur due to heat deformation. Use a non-corrosive resin type of flux. 1) Manual soldering * Set the soldering tip from 260 to 300C (30W), and solder for no more than 5 seconds. * Please note that output may change if the pressure is applied on the terminals when the soldering. * Thoroughly clean the soldering iron. 2) Reflow soldering * The recommended reflow temperature profile conditions are given below. * We recommend the screen solder printing method as the method for cream solder printing. * Please refer to the recommended PC board pad for the PC board foot pattern. * Self alignment may not always work as expected; therefore, please carefully adjust the position of the terminals and pattern. * The profile temperature is the value measured on the PCB near the terminals. * When doing reflow soldering on the back of the PC board after performing sensor reflow, please fix the sensor with adhesive and so on. 3) Solder reworking * Finish reworking in one operation. * For reworking of the solder bridge, use a soldering iron with a flat tip. Please do not add more flux when reworking. * Please use a soldering iron that is below the temperature given in the specifications in order to maintain the correct temperature at the tip of the soldering iron. 4) Too much temperature on the terminals will cause deformation and loss in effectiveness of the solder. Therefore, please avoid dropping and careless handling of the product. 5) When cut folding the PC board after mounting the sensor, take measures to prevent stress to the soldered parts. 6) The sensor terminals are designed to be exposed, so contact of the terminals with metal shards and the like will cause output errors. Therefore, please be careful and prevent things such as metal shards and hands from contacting the terminals. 7) To prevent degradation of the PC board insulation after soldering, please be careful not to get chemicals on the sensor when coating. T3 T2 T1 t1 t2 T1 = 150 to 180C 302 to 356F T2 = 230C 446F T3 = Max. 240C 464F t1 = 60 to 120 sec. t2 = With in 30 sec. 3. Connections * Please perform connections correctly in accordance with the terminal connection diagram. In particular, be careful not to reverse wire the power supply as this will cause damage or degrade to the product. * Do not connect terminals that are not used. This can cause malfunction of the sensor. 4. Cleaning * Avoid ultrasonic cleaning since this may cause breaks or disconnections in the wiring. 5. Environment * Please avoid using or storing the sensor in a place exposed to corrosive gases (such as the gases given off by organic solvents, sulfurous acid gas, hydrogen sulfides, etc.) which will adversely affect the performance of the sensor. * When installing the sensor, you must provide a capacitor as shown in the recommended circuit diagram. * Since the internal circuitry may be destroyed if an external surge voltages is supplied, provide an element which will absorb the surges. * Malfunctioning may occur if the product is in the vicinity of electrical noise such as that from static electricity, lightning, a broadcasting station, an amateur radio, or a mobile phone. * Please do not use the sensor in a location where it may be sprayed with water, etc. * Avoid using the sensor in an environment where condensation may form. Furthermore, its output may fluctuate if any moisture adhering to it freezes. * Avoid using the sensor where it will be susceptible to ultrasonic or other highfrequency vibration. 6. Other handling precautions To assure reliability, check the sensor under actual loading conditions. Avoid any situation that may adversely affect its performance. * Caution is required because differences in the acceleration detection range and the method of connection can lead to accidents. * The actual acceleration should be within the rated acceleration range. Damage may occur if it is outside of this range. * Static electricity can damage the sensor. Be very careful when handling. All Rights Reserved (c) COPYRIGHT Matsushita Electric Works, Ltd.