Volume MEMS and Analog Division (VMA) Health and Wellness Mobility Cloud computing June 2015 Where VMA products can bring added value for HEALTH AND WELLNESS? Battery monitoring Gas Gauge STC3115AIJT ppt - www Heart rate monitoring by light reflection Op Amp TSV711ICT ppt - www Gesture recognition by electromyography Op Amp TSZ124IQ4T ppt - www STMicroelectronics - Anthony Boimond 2 CONTEXT Gesture recognition by electromyography O2 level translated into current by Theis measurement of muscles electrical activity appears as a fascinating new electrochemical sensor. Current converted to way tothen interface machines. Simple analog processing allows gesture voltage and amplifiedwith by trans-impedance recognition by wearable devices. op amp. ST OFFER HOW DOES IT WORK? Feature Surface EMG signals are amplified by op amp in instrumentation configuration, then rectified and filtered to provide feedback to digital system. Benefit Input offset voltage Vio < 5 µV @25°C Vio < 8 µV -40 to 125°C Excellent measurement without trimming Input offset voltage drift Vio/T 30nV/°C max Stability of measurement versus temperature change Input bias current Iib < 200 pA Compatible with high impedance sensor Op Amp – Zero Drift TSZ124IQ4T STMicroelectronics - Anthony Boimond 3 CONTEXT Heart rate monitor by light reflection O2 level is translated into current by The heartsensor. rate monitoring is one electrochemical Current converted to of voltage and then amplified by first trans-impedance monitoring devices application op amp. the first physiological parameter for health of the quantified self movement. Feature 10pF Benefit Input bias current Iib < 10 pA @ 25°C Iib < 300pA @ 125°C Maintains excellent accuracy by not affecting diode current Supply voltage range 1.5 to 5.5V Compatible with wide choice of supplies SC70-5 2mm x 2mm Micro package with leads for optimized form factor and soldering on flex PCB 200k ADC 200k The LED emits light into the skin of the user. The reflected light - synchronized with heart pulses - is measured by op amp in trans impedance configuration. ST OFFER HOW DOES IT WORK? AN4451 Op Amp – Micro Power TSV711ICT STMicroelectronics - Anthony Boimond 4 CONTEXT Battery monitoring O2 level is translated into Lithium-polymer current by Lithium-ion and are the leading technologies for portable electrochemical sensor. Current converted to energy storage, and they require dedicated monitoring circuit to operate safely voltage and then amplified by trans-impedance and to provide accurate estimation of remaining use time. op amp. IO voltage STC3115 SCL VCC Benefit Voltage mode only configuration 3% accuracy of battery state of charge no need for shunt resistor Initial open circuit voltage (OCV) measurement Accurate estimation of battery state of charge at power up 1.4 x 2.0 mm 10-bump Flip Chip Minimum form factor VIN SDA BATD/CD ALM RSTIO/BATD CG GND AN4324 The OptimGaugeTM algorithm combines battery physical measurements to provide an accurate State of Charge indication. ST OFFER HOW DOES IT WORK? Feature Gas Gauge STC3115AIJT STMicroelectronics - Anthony Boimond 5 Where VMA products can bring added value for MOBILITY? Infrared emitter receiver for remote control Op Amp TSV991AIQ2T Battery monitoring Gas Gauge STC3115AIQT ppt - www ppt - www Active Noise Cancellation MEMS Microphone MP34DT01 ppt - www Screen of death recovery Smart Reset STM6519 ppt - www STMicroelectronics - Anthony Boimond 6 O2 level is translated is intothe current by Smartphone electronic counterpart of the Swiss Army Knife: why not to electrochemical sensor. Current converted to useand it then as Infrared Remote Controls at home for TV sets or air conditioning? voltage amplified by trans-impedance Op amps enable easy implementation of this feature. op amp. HOW DOES IT WORK? AN4451 Feature 10pF 200k ADC 200k The photodiode generates a reverse current proportional to the amount of light. This current is converted into voltage and amplified by op amp. ST OFFER CONTEXT Infrared emitter receiver Benefit Input bias current Iib < 10 pA @ 25°C Iib < 100pA @ 125°C Maintains excellent accuracy by not affecting diode current Slew rate 10 V/µs Compatible transmission frequency DFN8 2mm*2mm (0.6mm thickness) Shrinks device form factor Op Amp TSV991AIQ2T STMicroelectronics - Anthony Boimond 7 O2 level is translated into current by Silicon membrane microphones enable the multiplication of sound sensors and electrochemical sensor. Current converted to new applications as stereo recording, ambient noise reduction and active noise voltage and then amplified by trans-impedance cancellation. op amp. HOW DOES IT WORK? AN4041 AN4426 Feature CODEC AOP: 120dBSPL SNR: 63dB Sensitivity: -26 dBFS Vdd 100nF 1µF Vdd 1.8V 2 3 2 3 LR CLK LR CLK 1 4 1 4 Vdd DOUT Vdd DOUT 5 GND 5 GND An array of microphones are working together to provide omnidirectional sound recording. ST OFFER CONTEXT Active Noise Cancellation Stability of performances after soldering and drop test SMD package 3.0 x 4.0 x 1.0 mm Benefit Outstanding audio performances Easy manufacturing and customer satisfaction during product lifetime Enables application minimum form factor MEMS Microphone MP34DT01 STMicroelectronics - Anthony Boimond 8 CONTEXT Battery monitoring O2 level is translated into Lithium-polymer current by Lithium-ion and are the leading technologies for portable electrochemical sensor. Current converted to energy storage, and they require dedicated monitoring circuit to operate safely voltage and then amplified by trans-impedance and to provide accurate estimation of remaining use time. op amp. IO voltage STC3115 SCL VCC Benefit Coulomb counter and voltage-mode gas gauge 1% accuracy of battery state of charge Initial open circuit voltage (OCV) measurement Accurate estimation of battery state of charge at power up DFN10 2.0 x 3.0 x 0.55 mm Minimum form factor VIN SDA BATD/CD ALM RSTIO/BATD CG GND AN4324 The OptimGaugeTM algorithm combines battery physical measurements to provide an accurate State of Charge indication. ST OFFER HOW DOES IT WORK? Feature Gas Gauge STC3115AIQT STMicroelectronics - Anthony Boimond 9 CONTEXT Single push-button Smart Reset O2 level is translated into current by The recovery ofCurrent devices freezeto by long push on hardware electrochemical sensor. converted voltage and then amplified trans-impedance of several keys is by now fully integrated into users’ culture. op amp. 100k Benefit Extended Smart Reset input delay time No system reset by inadvertent short reset push-button closures Low supply current 1 μA Zero impact on application lifetime DFN6 1.00 mm x 1.45 mm Minimum form factor VCC VCC RST STM6519 SR RESET MCU INT/NMI VSS ST OFFER HOW DOES IT WORK? 100k VSS key or combination Feature Vcc 10 Smart reset STM6519 STMicroelectronics - Anthony Boimond Where VMA products can bring added value for CLOUD COMPUTING? Server Power: output current measurement Op Amp TSX711ILT ppt - www 11 Mother board voltage regulator Op Amp TSX561AICT ppt - www Hard disk drive protection Op Amp TSV631AICT ppt - www Server Power: PFC current measurement Op Amp TSX921ILT ppt - www STMicroelectronics - Anthony Boimond CONTEXT Server Power: PFC current measurement O2 level is translated current by is required by government regulation for server power Power Factorinto Correction electrochemical sensor. Current converted to supplies. the trend in power electronics is to implement digital voltage and thenAdditionally, amplified by trans-impedance controllers, which are efficiently seconded by op amps. op amp. Feature Benefit PFC controller The current of the power Mosfet is measured by a shunt resistor. The resulting voltage drop is amplified and filtered by the op amp and feedback to the controller. ST OFFER HOW DOES IT WORK? UM1737 Supply voltage range 4 to 16V Same power supply as PWM controller Gain Bandwidth Product 10 MHz Real-time current measurement SOT23-5 package Small form factor and optimal solderability Op Amp – 16V CMOS TSX921ILT STMicroelectronics - Anthony Boimond 12 CONTEXT Server Power: output current measurement O2 level translated into current by Theis electrical power required by servers is exponential. It implies fast electrochemical sensor. Current converted to protections against currents, accurate balance between redundant voltage and then amplified by abnormal trans-impedance power supplies and feedback of current value to digital. op amp. Feature Vref UM1737 The output current of the power supply is measured on low-side by a shunt resistor. The resulting voltage drop is amplified by op amp. ST OFFER HOW DOES IT WORK? 12V Benefit Supply voltage range 2.7 to 16V Direct supply by 12V output line Input offset voltage Vio < 200 µV @25°C Vio < 460 µV -40 to 85°C Minimizes shunt resistor cost SOT23-5 package Small form factor and optimal solderability Op Amp – 16V CMOS TSX711ILT STMicroelectronics - Anthony Boimond 13 CONTEXT Hard disk drive protection O2 level is translated intohard current by drives are rotating at tremendous velocity, with State of the art disk electrochemical sensor. Current converted to reading heads as by close as possible to the disk platter in order to optimize voltage and then amplified trans-impedance reading speed. Every shock needs to be detected to protect platter. op amp. Feature Benefit Input bias current Iib < 10 pA @25°C Iib < 100 pA -40 to 125°C Accurate measurement of small electric charges Input offset voltage Vio < 500 µV @25°C Vio < 2 mV -40 to 125°C Detection accuracy SOT23-5 package Small form factor and optimal solderability R1 piezo sensor The shock is detected by a piezo sensor, creating an electrical charge at its electrodes. The charge is converted into voltage and amplified by op amp. ST OFFER HOW DOES IT WORK? C1 the Op Amp – Micropower TSV631AILT STMicroelectronics - Anthony Boimond 14 O2 level is translated into current by Mother boards different electrochemical sensor. include Current converted to levels of supply voltages voltage and then amplified by trans-impedance stages. Accuracy and stability are key performances. op amp. HOW DOES IT WORK? REF 12Vsb 3V The op amp is driving the gate of a power Mosfet used as a linear regulator. with many conversion Feature 5V ST OFFER CONTEXT Mother board voltage regulator Benefit Supply voltage range 3 to 16V Direct supply by 12V output line Input offset voltage Vio < 600 µV @25°C Ensures regulation accuracy SOT23-5 package Small form factor and optimal solderability Op Amp – 16V CMOS TSX561AICT STMicroelectronics - Anthony Boimond 15 16 STMicroelectronics - Anthony Boimond 17 Click here or here STMicroelectronics - Anthony Boimond