Signal Conditioning Operational Amplifiers ... - STMicroelectronics
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Signal Conditioning Operational Amplifiers ... - STMicroelectronics
Benefit. The recovery of devices freeze by long push on hardware key or combination ... State of the art hard disk drive
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.
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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.
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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.
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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.
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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.
