The World Leader in High Performance Signal Processing Solutions Operational and Instrumentation...

The World Leader in High Performance Signal Processing Solutions Operational and Instrumentation Amplifiers Analog Dialogue Milano - Bologna November 15 th -17 th, 2011 Matteo Crosio - FAE

Agenda Some topology issue Rail-to-Rail definitions High Speed Amplifiers CFB vs VFB ADC Drivers Precision Op-Amps Zero-Drift OVP Specialty Amplifiers Instrumentation Amps Difference Amps Current Shunt Amps Thermocouple I/Fs 2

Some topology issue Rail-to-Rail Amplifiers What is the problem? 3

Classic Op Amp Input stage MOSFET Good for operation that needs to include only ONE of the supply rails Vsupply + Vsupply Vin,low = Vcurrent_src + Vgs Vin+ Vin- nMOS Vcurrent_src Vgs + Vsupply + - Vcurrent_src 4

Classic R-2-R input: dual input pairs - MOSFET Low input voltage p1 High input voltage p2 n1 n2 + Vsupply Input can span the entire supply voltage range - Vsupply Issue: crossover distortion when the signal level moves through the range where one input stage turns off and the other one turns on. 5

Zero Crossover Input: How Does It Work? Built in charge pump Input Stage Vsupply > Vin Charge Pump +Vsupply 6

Rail-to-Rail Output Stage Op-Amp output voltage can swing very close to the power rails. Voltage gain depends on load. This is an Almost Rail-to- Rail output stage (when it is lightly loaded). Generating higher voltage power rail can help overcoming the problem. 7

The World Leader in High Performance Signal Processing Solutions High Speed Op Amps (>50 MHz)

How Do We Classify High Speed Amplifiers? High Speed Amplifiers Have Bandwidths > 50MHz AC specification driven Wide Bandwidths: 50MHz 2.1GHz High Slew Rate: 30V/s 5500V/s Fast Settling Time: 1s 4ns Precision Amplifiers Bandwidths < 50MHz Offset Voltage < 1mV Low Drift 9

Voltage Feedback (VFB) Op-Amp Model For large value of A(s), the gain is simply 1 + R2/R1 GBWP costant (as the gain increase, the BW decreases) 10

Current Feedback (CFB) Op-Amp Model BW depends only on feedback resistor. Then, considering R2 constant, gain can be changed modifying R1. BW independent on the gain. 11

Voltage Feedback vs Current Feedback 12

AD8000 - 1.5GHz Ultrahigh Speed Op-Amp 13

ADA4960-1 Ultra-high Speed ADC Driver KEY FEATURES Ultra-low Distortion 70 dBc H2/H3 @ 250 MHz 66 dBc H2/H3 @ 500 MHz 55 dBc H2/H3 @ 1 GHz Low input voltage noise: 3.6 nV/Hz High Speed 3 dB bandwidth of 5000 MHz, G = 1 Slew rate: 8000 V/s Fast overdrive recovery of 1 ns Low quiescent power: 60mA/channel Externally adjustable gain with fixed input impedance. Single-ended or Differential Input Differential Output Adjustable output CM voltage 5V to +/- 2.5 V Supply Voltage Small 3 mm x 3 mm LFCSP package Key Benefit Excellent distortion performance out to 1GHz bandwidth. Price @ 1kTemp $6.95-40C +105C ReleaseSamples March, 2010 Now 14

Target Applications Low Power, Low Distortion ADC Driver Ideally Suited for Driving Giga-Sample/Sec ADCs Industrial & Instrumentation High end digital storage oscilloscopes Satellite Communications Terrestrial Receivers Electronic Surveillance and Countermeasures Data Acquisition Subsystems 15

ADA4930-1/-2 Very low noise ADC driver for 1.8V ADCs KEY FEATURES Ultra-Low input voltage noise: 1.3nV/Hz Ultra-low Distortion 104/-100dBc H2/H3 @ 10 MHz 79/-82 dBc H2/H3 @ 70 MHz 72/-75 dBc H2/H3 @ 100 MHz High Speed 3 dB bandwidth of 2200 MHz, G = 1 Slew rate: 2300 V/s (25% to 75%) 0.1% Settling time of 4ns 1ns overdrive recovery time Externally adjustable gain Single-ended or Differential Input Differential Output Adjustable output CM voltage from 0.9V to 2.2V 3.3V or 5V Supply Voltage Single - 3 mm x 3 mm LFCSP package Dual - 4 mm x 4 mm LFCSP package Enhanced Product (NiPdAu finish) version coming soon! Key Benefit Capable of driving 0.9V Vcm, 1.8V ADCs, off of a single 3.3V or 5V supply Price @ 1kTemp $3.79/6.59 -40C +105C ReleaseSamples September 2010Now RGRG RGRG RFRF RFRF V IN V OUT+ V OUT- V OCM + _ + _ + _ 16

Target Markets Direct Conversion Radio transceivers Basestation (multi-standard) Point to Point MRI (Magnetic Resonance Imaging) systems Electronic test equipment Electronic countermeasures 17

ADA4898-1/-2: High Voltage, Low Noise, Low Distortion, Unity Gain Stable, High Speed Op Amps FEATURES Ultralow noise 0.9 nV/Hz 2.4 pA/Hz 1.2 nV/Hz @10 Hz Ultralow distortion: 93 dBc at 500 kHz Wide supply voltage range: 5 V to 16 V High speed 3 dB bandwidth: 65 MHz (G = +1) Slew rate: 55 V/s Unity gain stable Low input offset voltage: 150 V max Low input offset voltage drift: 1 V/C Low input bias current: 0.1 A Low input bias current drift: 2 nA/C Supply current: 8 mA Power-down feature Key Benefit Low noise, low distortion for 16-bit and 18-bit systems TempPrice @ 1k -40C 105C$1.91/$3.21 SamplingFinal Release ADA4898-1 Now ADA4898-2 Now ADA4898-1 Oct 08 ADA4898-2 Spring10 18

ADA4898 Target Applications -High Supply, Low Noise, Low Distortion OpAmp ATE and Instruments General high dynamic range signal processing Data Acquisition Single-ended ADC/DAC Buffers Active Filters Receiver Front ends Medical Instrumentation Ultrasound drive side circuitry PLL Loop filter Enables low jitter and wide frequency range Automotive Radar For ACC (Adaptive Cruise Control) and airbag early warning 19

ADA4940-1/-2 Ultra Low Power, Low Distortion ADC Driver KEY FEATURES Extremely low harmonic distortion: 90dB THD @ 2 MHz Low input voltage noise: 4 nV/Hz Very low power consumption: 6.5 mW (5 V supply) 1 mV typical offset voltage Externally adjustable gain Differential-to-differential or Single-to- differential operation Balanced outputs 16-bit settling time: 85 ns Output voltage swing from V S + 0.1 V to +V S 0.1 V Adjustable output common-mode voltage Flexible power supplies: 3 V to 10 V Pb-free, 8-lead SOIC Pb-free, 3 mm 3 mm, 16-lead LFCSP Pb-free, 4 mm 4 mm, 24-lead LFCSP Key Benefit Capable of driving low power, high resolution, high performance ADCs with resolutions up to 18 bits from dc to 2 MHz on just 1.25 mA of quiescent current Temp $1.89 (single) -40C +105C Price @ 1k ReleaseSamples Q2 2011Now 20

ADA4896/4897 Product Concept 1 nV/Hz, Low Power, R-R Output, and High Speed Op Amps FEATURES Low Wideband noise 1 nV/Hz 3 pA/Hz Low 1/f Noise 2 nV/Hz @10 Hz 9 pA/Hz @10 Hz Supply current: 3 mA/amplifier Low distortion: 110dBc @ 100 kHz Wide supply voltage range: 2.7V to 10V Rail-Rail Output High speed 3 dB bandwidth: >200 MHz (G = +1) Slew rate: 100 V/s High output current: 100mA ADA4896-2 (Dual): 8-LFCSP, 8-MSOP ADA4897-1 (Single): SO-8, SOT23-6 ADA4897-2 (Dual): MSOP-10 Key Benefit Low noise, low power for 16-bit and 18-bit systems TempPrice @ 1k -40C 105C$1.89/$3.21 SamplingFinal Release NowSummer 2011 21

Gain and Level Shifting Circuits Single-Ended Configuration 22

Single-Ended Level Shifter with Gain Requires Rail-to-Rail Op Amp +V S + BIPOLAR INPUT R2 R1 ADC RTRT V1 = +0.3V V CM = V1 1 + R2 R1 A1 = +3V 499 2k 0.25V = +1.5V 56.2 +1.5V /+ 1V INPUT RANGE = +0.5V TO +2.5V NOISE GAIN = 1 + R2 R1 SIGNAL GAIN = R2 R1 INPUT COMMON-MODE VOLTAGE = +0.3V OUTPUT SWING RAIL-TO-RAIL OUTPUT REQUIRED = 5 = 4 23

Example of Differential and Common-Mode Signals Balanced Signal 1Vpp Vp Vn Vcm = 1VDC + - 0V Reference 1.5V 1V 0.5V Vp Vn Vcm 1V 0.5V 0V -0.5 V -1V Vcm Vcm = (Vp + Vn)/2 Vx(t) = Vpk*sin(wt)+Vcm Vp(t) = 0.5*sin(wt)+1V, Vn(t) = -0.5*sin(wt)+1V Vdm(t) = Vp(t)-Vn(t) = 0.5*sin(wt)+1V-(-0.5*sin(wt)+1V) =1*sin(wt) Or = 1*sin(wt) @ 90deg = +1V =1*sin(wt) @ 270deg = -1V =2Vpp 2Vpp Vdmn 1Vpp 0 90 180 270 360 deg Vdmp 24

AD813x Differential ADC Driver Functional Diagram and Equivalent Circuit ~ RFRF RFRF RGRG RGRG V OUT V OUT+ + GAIN = RFRGRFRG V IN+ V IN EQUIVALENT CIRCUIT: V OCM (A) (B) 25

DC Coupled AD8138 Driving AD9235 12-Bit, 20/40/65MSPS CMOS ADC, Baseband Signal + AD9235 12-BIT ADC A IN A IN+ V IN 0.5V 49.9 499 523 10k 49.9 +1.5V V OCM AD8138 0.1F 100pF 0.1F 100pF +0.75V + / 0.125V +1.5V / + 0.25V +1.5V + / 0.25V Set for 1V p-p Differential Input Span +3V FROM 50 SOURCE f s = 20/40/65MSPS 26

AD8475 Funnel Amp + ADC Driver Interface 10V or 5V signal on single-supply amplifier Integrates 4 steps into 1: Attenuation Single-Ended-to- Differential Conversion Level-Shift Drive differential 18-bit SAR ADC up to 4MSPS with few external components 27

AD8475 Funnel Amp + ADC Driver 2 Pin-selectable precision attenuating gains 0.4X and 0.8X Level-translating VOCM pin sets output common mode Single-ended to differential conversion Differential rail-to-rail output Input range beyond the rail 150 MHz bandwidth 10 nV/Hz output noise 50 V/S slew rate -112dB THD+N 1 ppm/C gain drift 500 V max output offset 3 mA supply current Key FeaturesKey Specifications Applications Industrial control modules Data acquisition systems Medical monitoring devices ADC driver 28

Signal Routing Op Amp Packaging and Pinout Packaging plays a large role in high-speed applications Smaller packages Better at high speeds/high frequency Compact layout Less parasitics Analog Devices Low Distortion (dedicated feedback) Pinout Compact layout Streamline signal flow Lower distortion 29

Op Amp SOIC Packaging Traditional SOIC-8 layout Feedback routed around or underneath amplifier 30

Op Amp SOIC Packaging Traditional SOIC-8 layout Feedback routed around or underneath amplifier 31

Analog Devices Low Distortion Dedicated Feedback Pinout Pinout enables compact layout Lower distortion Improved thermal performance LFCSP AD8099, AD8045, AD8000, ADA4899, ADA4857, ADA4817 Also used on Differential Amplifiers Disable FBFB 1 2 3 4 8 7 6 5 IN VSVS +IN +V S V OUT NC + - Original Pin-Out NC 32

Low distortion (dedicated feedback) pinout enables compact and streamline layout 33

The World Leader in High Performance Signal Processing Solutions Precision Op Amps (

How Do We Classify Precision Amplifiers? High Speed Amplifiers Have Bandwidths > 50MHz AC specification driven Wide Bandwidths: 50MHz 2.1GHz High Slew Rate: 30V/s 5500V/s Fast Settling Time: 1s 4ns Precision Amplifiers Bandwidths < 50MHz Offset Voltage < 1mV Low input bias current < 100pA Low Drift 35

Auto-zero Op-Amps Concept A1: main amplifier A2: nulling amplifier In sample mode S, A2 monitors the input offset voltage of A1 and drives its output to zero by applying a correcting voltage to A1s null pin. In auto-zero mode Z, A2 correct its own offset. C1 and C2 holds the correction to A1 and A2 respectively. In order to reduce intermodulation distortion introduced by switching, a pseudo-random sampling frequency is used. 36

Auto-zero Op-Amps Noise If sampling frequency is considerably higher than 1/f corner frequnecy of the input noise, the autozero amplifier coninuosly nulls out the 1/f noise on a sample-by-sample basis. Theoretically no 1/f noise, but wideband noise is worse. Much filtering required. Low offset and drift. 37

AD8657/AD8659 18V RRIO, Power, Precision CMOS Op Amp V OS I SY Noise @ 1kBandwidthSupplyI BIAS TempIOIO 350 V max.22 A max 50 nV/ Hz 200 kHz2.7V to 18V100 pA Max-40C 125C10 mA AD8657 Dual Released AD8659 Quad In Development Package: MSOP-8, LFCSP Price 1ku : $0.95 Package: TSSOP-14, LFCSP Sample Availability: now 4-20 mA Current Loop Transmitter 38

AD8546/AD8548 18V RRIO, Power, CMOS Op Amp I SY Noise @ 1kBandwidthSupplyI BIAS TempIOIO 22 A maxRRIO 50 nV/ Hz 200 kHz2.7V to 18V100 pA Max-40C 125C10 mA AD8546 Dual Released AD8548 Quad In Development Package: MSOP-8, LFCSP Price: $0.78 for 1ku Package: TSSOP-14, LFCSP Sample Availability: now ADI Advantages of the voltage noise, 2X the current drive and of the package size than any competitive amplifier at a supply current less than 22 A 39

ADA4077-x Next Generation OPx177 36V Precision, Low Power Op Amp IsyV OS TCVosNoiseIbGBWVoltagesTemp 500A max Grade A: 50V max Grade B: 25V max Grade A: 0.5V/ C max Grade B: 0.15V/ C max 7 nV/Hz 1.5nA max 3.5 MHz3V - 36V-40C - 125C ADA4077-1 Single In Development ADA4077-2 Dual In DevelopmentADA4077-4 Quad In Development Package: MSOP-8, SOT23 Package: SOIC-8, MSOP-8 Sample Availability: 3QCY11 Package: SOIC-14, TSSOP-14 ADI Advantages Compared to the competition, the ADA4077 offers 3X BW with competitive power consumption, offset, noise, input bias current, Slew Rate, CMRR, PSRR, or price. Closest Competitors 40

ADA4528-x Worlds Most Accurate Op Amp Low noise zero drift amplifier VosT C VosIsy / AmpCMRRBandwidthSlew RateTemp RangeV Supply 2.5 V max 0.015 V/C max 1.8 mA max115 dB min4 MHz 0.4 V/ s -40C - 125C2.2V to 5.5V ADA4528-1 Single Released ADA4528-2 Dual In Development Package: SOT23-5, MSOP-8 Price: $1.15 1ku Package: LFCSP-8, MSOP-8 a No 1/f Noise 5.6nV/ Hz ADI Advantages Worlds Most Accurate Op amp, Lowest voltage noise zero- drift op amp 41

V OS T C V OS Noise @ 1kBandwidthSupplyI BIAS I SY Temp 10 V max.10V max 59 nV/ Hz 2.5 MHz5 33V100 pA Max1.3 mA max -40C 125C ADA4638-1 Single In Development ADA4638-2 Dual In Developmen t Package: LFCSP-8, SOIC-8 Sample Availability: 2QCY11 ADA4638-x 30V Zero Drift, RRO Op Amp Thermopile Op Amp @ 15V ADI Advantages Lowest power/ Speed ratio 30V Zero Drift Op amp 42

Input Voltage Protection at all levels +Vs -Vs Within Input Voltage range (IVR) Linear region Outside of IVR but inside Power supply setting Rail to Rail Linearity degrades Outside of Power Supply setting 43

Applied Input Inside of IVR 44

Within Input Voltage range (IVR) Assumption: Rise/fall times of input pulse within the propagation delay of the amplifier 45

Within Input Voltage range (IVR) Op amp can not be used as comparator 46

Input Differential protection Note: AD8599 +-1V at inputNote: OP113 +-9V at input 47

Diode Protection slows Op-Amps (i.e. OP27) R f 100 Input fast and large signal pulse (>1 V) R f 500 Output can drive the current requirement (ex. 10V swing on R f =500 ohm, I L 20 mA ); op amp in active mode and a smooth transition occurs R f > 2 K Reduced phase margin due to C in (8 pF) Place a small capacitor (20 pF to 50 pF) in parallel with R f to eliminate this problem 48

Applied input outside of IVR but inside Power supply setting 49

Phase reversal V OUT -+-+ Vin Output Voltage Phase reversal occurs when the Input Common Mode voltage exceeded (typically, towards the negative range). One of the internal stages of opamp has no longer sufficient bias voltage across it and turns off. The output voltage swings to the opposite rail. Typically happens in the Unity- Gain Follower configuration. Not a problem in the Inverting configuration (both input constant and at ground or mid supply in some single-supply application). Vsupply Over-Voltage Protection will also serve to prevent Output Voltage Phase-Reversal 50

Applied Input Slightly above the rail issues 51

ESD protections Slightly above: Input current increase during overvoltage, causing stress and temperature increase 52

Slightly above Spec can be asymmetrical 53

Far out of the rail - issues 54

Recommended Protection Scheme R limit introduces noise D1 D2 prevent internal diodes to activate (forward voltage 300mV vs 700mV) Some diode can be very leaky, so that leakage current adds to op-amp bias current Additional pole in the signal path due to Diode junction cap and R limit 55

OVP Solution Alternatives Internal ESD Protection Advantage Included on all Op Amps Disadvantage Not design for long duration overvoltage events External Diode Protection Advantage Differential or Common Mode variations Inexpensive Disadvantage Effects on parametric performance Reduces Precision Variable leakage current and capacitance Increase in non-linearity Need external circuitry Complex External Solutions Advantage Can be designed to endure long duration OVP events Disadvantage Need external circuitry (MOV Metal Oxide Varistor, TransOrb, etc.) Expensive Takes board space Limited lifetime/events for certain components Effects parametric performance ADI Integrated OVP Solution Advantage Provides most, if not all protection needed (Gen 3 up to 32V above/below supply voltage rails) Endures infinite duration events Parametric effects included in the datasheet Saves board area Reduces cost versus complex external solutions Disadvantage ??? 56

ADA4096-x Improved OPX96 with Gen 3 OVP 36V, RRIO, Precision, Power, RRIO Op Amp with OVP IsyGBWVosVos DriftNoiseIBIB VoltageTemp Range 90 A max 450 kHz 300 V max1 V/C27 nV/ Hz 10 nA max3 V - 36 V-40C - 125C ADA4096-1 Single Concept ADA4096-2 Dual In Development ADA4096-4 Quad In Development Package: SC70-5, LFCSP-8 (3x3) Package: MSOP-8, LFCSP-8 (3x3) Samples Available: 4QCY10 Package: TSSOP-14, LFCSP-14 (3x3) Samples Available: 4QCY11 ADI Advantages With 2X BW, Vos and Vin, and ~1/10 Isy of the closest competition; the ADA4096 provides the industrys highest level of over voltage protection for robust operation in demanding I&I applications 57

The World Leader in High Performance Signal Processing Solutions Specialty Amplifiers

Integrated Amplifiers Difference Amplifier (Current Sense) Difference Amplifier (Low Gain) Instrumentation Amplifier VGA Input Impedance MM kk GG Bandwidth up to 3 MHzup to 20 MHzup to 10 MHzup to 280 MHz Gains 3 to 1000.1 to 21 to 10,000-30dB to 70dB CMV Range -2V to 500V270VMust stay within supply rails CMRR 85dB80dB120dBNA Applications Shunt resistor measurement Solenoid Current Motor control Power Supply Monitor Line Voltage measurements ADC driving Cable driving Sensor Signal Condition Transducer Interface Heart Monitors Bridge Interface Ultrasound Communications PET scanners 2k Integration of Op-Amps and Resistors produces Better Performance & frequently Lower Cost 59

Amplifier Integration Resistor Divider Input Conditions Input Voltages Larger than Supply Rails Vin = 120V. +/-Vs = 12V Level Shift, diff to single ended Single IC Solution High CMRR vs. Freq, Temp Matched Resistors 0.01% High Input Impedance Level Shift, Diff to single-ended Single resistor set the gain High CMRR vs. Freq, Temp Matched Resistors 0.01% op ampinstrumentation ampdifference amp A device that measures small, precision signals in a noisy environment 60

The World Leader in High Performance Signal Processing Solutions Instrumentation Amplifiers 61

AD8229: High Temperature, Low Noise Instrumentation Amplifier Sampling: Now Key specifications GUARANTEED for 210 o C Operation (see datasheet) Low noise: 1nV/Hz High CMR G=10: 106dB Wide supplies: +/-4V to +/-17V Slew Rate: 22V/s Bandwidth: 15MHz @ G=1 Low THD: -130dBc @ 1kHz Fast settling time: 0.001%, 900ns Gain Range: 1-1000 62

Key Features Versatile Digital Gain settings: G = 1,2,4,8,16,32,64,128 Single supply range: 3V to 5.5 V Uncommitted Op Amp Rail to rail output stage Key Specs 80dB min CMRR (G= 1) 2.7MHz bandwidth, (G =1) 32 nV/Hz, @ 1 kHz. Typ, +5V 10ppm/C gain drift 50nV/C max input offset drift -40C to +125C 1k priceProduction $1.69 Now Package 16-L LFCSP 4mm x 4mm AD8231 Programmable Gain Zero-Drift In Amp with Uncommitted Output Amplifier 63

AD8231: Differential Outputs interface with Differential Input ADC Forward compatible with new differential input ADCs As ADCs move to lower voltage supplies, they move towards differential inputs. Operates on same supply as todays ADCs 64

Key Features Gain set with 1 external resistor (gain range 1 to 1000) Rail to Rail Outputs Wide power supply range: 4.6V to 18 V Key Specs 80dBmin CMRR to 5 kHz ( G = 1) 1.5MHz 3 dB bandwidth (G = 1) 2 V/s slew rate 14 nV/Hz, @ 1 kHz max. Wide FET Input Voltage Range. Vs +0.2 to +Vs-2.5V 5V/C max input offset drift 10pA input bias current, max. (B-grade) AD8220 A-GradeAD8220 B-Grade $2.29 1k/yr $3.49 1k/yr Package 8-L MSOP 3mm x 3mm AD8220 FET Input In-Amp Instrumentation Amplifier AD8220 -IN 1 RG 2 3 +IN 4 5 +VS VOUT VREF -VS 8 7 6 Smallest FET Input In-Amp 65

AD8221 Instrumentation Amplifier Highest Performance and Smallest Package KEY FEATURES High AC CMRR: 80dB @ 10kHz G=1 (min) High DC CMRR: 90dB (B min), 80dB (A min) Conditions Large Signals: +/-18V Extremely High Input Impedance: 100G Low 0.1 to 10Hz Noise: 0.25 V p-p 8-L MSOP Package PackageCMRRInput NoiseVos DriftGainsTempPrice @ 1k 8-lead MSOP 8-lead SOIC 80 dB (min) 90 dB (min) 8nv/Hz 0.9 V/ C 0.3 V/ C 1-1000 -40C 125C $ 1.99 MSOP $ 2.32 SOIC MultipurposeIndustrial Data AcquisitionPrecision Medical Wide Supplies: 2.3V to 18V Easy to Use, Plug and Play Lower Cost than Any Alternative Conditions Large Signals:+/-18V Extremely High Input Impedance: 100G High DC and AC CMRR: 80dB @ 10kHz G =1 (min) Low 0.1 to 10Hz Noise: 0.25 V High DC CMRR: 90dB (B min), 80dB (A min) MSOP Package Available 66

AD8222 Dual Channel Instrumentation Amplifier Key Features Gain set with 1 external resistor (gain range 1 to 1000) Wide power supply range: 2.3 V to 18 V Key Specs AD8221 Performance in a Dual! 80dBmin CMRR to 5 kHz ( G = 1) 825kHz 3 dB bandwidth (G = 1) 2 V/s slew rate 8 nV/Hz, @ 1 kHz max. 70 V max input offset voltage 0.6 V/C max input offset drift 0.5 nA input bias current Package 16-L LFCSP 4mm x 4mm Industrys Smallest Dual In- Amp AD8222 A-GradeAD8222 B-Grade $3.59 1k/yr $6.29 1k/yr 67

Key Features Digital Gain settings: G = 1, 2, 5, 10 (AD8250) G = 1, 2, 4, 8 (AD8251) Wide power supply range: 5 V to 15 V Supplies Key Specs 80dBmin CMRR to 50 kHz ( G = 1) 10MHz 3 dB bandwidth (G =1) 20 V/s slew rate Settling Time 0.5us to 0.01% 18 nV/Hz, @ 1 kHz max. 10ppm/C gain drift 1.7V/C max input offset drift -110dB THD at 1kHz -40C to +85C 1k PriceProduction $4.95 Released Package 10-L MSOP 3mm x 3mm AD8250/51 Digital Programmable Gain Instrumentation Amplifier (PGIA) Smallest PGIA Smallest PGIA Available in 10-L MSOP 68

Key Features Digital Gain settings: 1000 G = 1, 10, 100, 1000 Wide power supply range: 5 V to 15 V Supplies Supply current: 4.5mA Key Specs 80dBmin CMRR to 50 kHz ( G = 1) 17MHz 3 dB bandwidth (G =1) 20 V/s slew rate Settling Time 0.5us to 0.01% 12 nV/Hz, @ 1 kHz max. 10pmm/C gain drift -40C to +85C 1k PriceProduction $4.95 Released Package 10-L MSOP 3mm x 3mm AD8253 Digital Programmable Gain Instrumentation Amplifier (PGIA) Smallest PGIA Smallest PGIA Available in 10-L MSOP 69

The World Leader in High Performance Signal Processing Solutions Difference Amplifiers 70

AD8273 Dual Channel Difference Amplifier Key Features Fixed Gain: G = 0.5, 2 Beyond Power Supplies Input Range: 3(-Vs)+4.5 to 3(+Vs)-4.5 Key Specs (G=0.5) Low Distortion 0.004% @ 1kHz, 10 Vpp, 600 CMRR: 86dB Bandwidth: 20 MHz Slew Rate: 20 V/s min Settling Time (to 0.01%): 0.8s Gain Drift: 10 ppm/C max Offset Voltage: 700 V max Supply Range: 2.5V to 18V Quiescent Current: 2.5mA / Amp max -40C to 85C 1k PriceProduction $1.67 Now Package 14-L SOIC 71

AD8273 as High Voltage Differential Line Driver High swing signals: 10V Wide power supply range: up to 18V Low distortion: THD+N 0.00025% Low power option: AD8277 72

AD8275: G=0.2 Level Translation 16-bit ADC Driver Key Features Difference Amplifier G = 0.2 Interface 10V or 5V signal to single-supply ADCs High Integration Internal built resistors for level translation Key Specs Wide Input Range (+Vs - 40V) to (-Vs+40V) Low Distortion THD+N: -106 dBc @ 1 kHz, 4 Vpp, 2K load 16 bit accuracy at 250 kSPS 1 ppm/C max gain drift 86dB min CMRR @50/60Hz, up to 50kHz 10 MHz min -3dB Bandwidth Settling time: 450nS to 0.001% Gain Accuracy: 0.024% (max) 500 V max offset voltage Rail-to-rail output Supply Range: 3.3V to 15V -40C to 85C 1k price (A Grade)1k price (B Grade) $1.60 $2.10 Package 8-L MSOP 3mm x 4.9mm 73

AD8275: Interface 10V Signals to 5V ADC Drive 16-bit SAR ADC up to 250kSPS with few external components Drive 18-bit SAR ADC up to 100kSPS Product video available in product page Evaluation board will be available soon ADR444/5 (4.096/5V) 74

AD8275 Application Examples Migrate from discrete to AD8275 #1 AD8275 is used in power metering control and measurement equipments successfully for OVP: transformers preliminary side floating, CMV up to 8V Powered by 5V and the input signals can cover -35V to 40V Drive 14/16-bit SAR ADC Small size: MSOP package Low cost #2 AD8275 used in dynamic weighscale for Integration level: attenuation, voltage shifter and ADC driver Excellent gain drift: 1ppm/C max 75

AD628: High Common Mode Voltage Programmable Gain Difference Amplifier Key Features Common Mode Voltage Range: 120V @ 15V power Gain range: 0.1 to 100 Key Specs Offset: 1.5 mV max Offset Drift: 8 V/ max Gain Drift: 5ppm/ max CMRR: 75 dB min Bandwidth: 600kHz @ G=0.1 Slew Rate: 0.3V/S Supply Range: Dual: 2.25V to 18V Single: 4.5V to 36V Quiescent Current: 1.6mA max -40 to 85 1k PriceProduction $1.76 Now Package: 8-L MSOP / SOIC G = (1 + R EXT1 /R EXT2 ) 76

AD628 Rejects High CMV High VoltageSignal Conditioning Low Voltage Single-Supply ADC +/-120V +3.3V ref Low Voltage! 77

The World Leader in High Performance Signal Processing Solutions Difference & Current Shunt Amplifiers AD8210 78

AD8205/6: 65V Single Supply Difference Amplifier Key Features Wide CMV Operating Range -2V to +65V operation -5V to +70V survival Gain of 50 (AD8205) Gain of 20 (AD8206) Sense Current in 1 or 2 Directions Operating Temperature Range: Die: -40C to +150C SOIC: -40C to +125C Platforms High Side Current Sense 42V & 14V automotive applications Motor control, solenoid control, diagnostics Commercial truck applications Motor control, solenoid control, diagnostics AD8205AD8206 1.49 1k/yr 1.35 1k/yr Key Specs Offset: 2mV Max 25C Offset: 4.5mV Max -40C to 125C CMRR: 80 dB Gain Drift: 30ppm/C 79

AD8205/6 H-Bridge Motor Control Application H-Bridge AD8205 Shunt Motor 80

AD8210: Current Sense Amplifier Key Features Wide CMV Operating Range -2V to +65V (70V survival) Fixed Gain of 20 Sense Current In 1 or 2 Directions Voltage Out 500kHz Frequency Range 5M Input Impedance Operating Temperature Range: SOIC: -40C to +125C Platforms Industrial and Automotive Battery Charging Motor Control Industrial solenoid control Switching Power Converter Control Diagnostics Key Specs Offset: 1mV Max Offset Drift: 8V/C Max DC CMRR: 120 dB typ AC CMRR: 80dB Min up to 40kHz Gain Drift: 20ppm/C PriceProduction 1.79 1k/yr Now V Out G=20 Vs AD8210 V Ref 2 V Ref 1 - IN+ IN GND 81

AD8210 Application Examples 14V To control circuitry DC Motor Control DC/DC Converter V Out 42V Shunt ECU V Out G=20 Vs AD8210 V Ref 2 V Ref 1 - IN+ IN GND Reference Motor Control Applications Industrial DC Motor Control Medical Imaging Machine Motor Control Automotive DC Motor and Solenoid Control DC/DC Converter Applications Power Supply Base Station Battery Charging Automotive Battery Charging 82

Definition of Low Side and High Side (Load Referenced) CLAMP DIODE Solenoid Shunt Switch CLAMP DIODE Solenoid SHUNT Switch Shunt CLAMP DIODE Solenoid Switch Shunt High Side Sense Low Side Sense High Side Drive Low Side Drive CLAMP DIODE Solenoid Switch Shunt 83

Key Features Wide CMV Operating Range +6V to +65V Continuous -0.3V to 70V Survival Adjustable Output Range Integrated Shunt Regulator Operating Temperature Range: MSOP: -40C to +125C Operates from the High Side Rail Platforms Industrial and Automotive Battery Charging DC/DC Converters Electronic / Smart Fuse Diagnostics Key Specs 100nS Maximum Propagation Delay 3mV Input Offset 3% Shunt Regulator Accuracy 10mV Hysteresis PriceProduction 0.75 1k/yr Now AD8214: Current Sense Threshold Detector 84

AD8210 AD8214 FET Driver Controller Unique AD8214 Application: Over Current Protection Application (Hardware Shutdown) Response time: 200nS with AD8214 Greater than 5S without AD8214 Over Current Condition FET Driver Shut off in 200nS Load, Power FET, Shunt, and Current Sense Amp Protected Load 85

86 Thermocouple Amplifiers Thermocouple = Robust (rugged, tough, strong, sturdy) 86

Iso- Thermal Block Amplifier Front Ends for Thermocouples AMP ADC DSP Human Interface Computer Interface/ Isolation AMP + Cold Junction Compensation Voltage Reference PowerMUX Amplifier Front Ends ADIsimThermocouple TM Safety/ Monitoring AD59x/AD849x 87

Thermocouple Solutions (Amplifier Front Ends) Key Considerations Very small signals (40V/ o C) 1/f noise also an issue Low offset and offset drift Autozero architectures attractive Technical Trade-offs Noise vs. power dissipation How to select a part Accuracy dominates consideration, then go with a uController solution Linearization algorithms can be customized If Time To Market is chief concern, use system solution with integrated InAmps optimized for temperature range 88

AD849x Thermocouple Amplifier Next Generation Monolithic Thermocouple Amplifiers Factory trimmed for type J and K thermocouples Calibrated for high accuracy Cold Junction Compensation (CJC) IC temps of 25C and 60C Output voltage of 5mV/C Active pull down Rail to Rail output swing Larger output temperature range with smaller supply voltage Can measure negative temperatures in single supply operation with REF pin Use REF pin to calibrate out initial errors Wide Power supply range +2.7V to +/-15V Low Power < 1mW typical Improved Common Mode Sensitivity (Rejection) of 0.3C/V Operation to 125C for automotive Package - Space saving MSOP-8, Lead Free Low Cost < $1 in Volume 89

Thermocouple Amplifier Concept 90

Thermocouple Front End Amplifiers Integrated Thermocouple Front End Amplifiers Part NumberThermocouple TypeOptimized Application AD8494JRoom Temperature AD8495KRoom Temperature AD8496JOven AD8497KOven 91

Thermocouples Competitive Advantages Easy to use No software needed Plug & Play Integration into existing data acquisition system straightforward Simply add to unused channel Amps 92

Presented By: Matteo Crosio - FAE Analog Devices Parco Tecnologico ENERGY PARK Building 03 Sud Via Monza 7/a 20871 Vimercate (MB) Italy +39 039 6848931 +39 342 1743332 [email protected] 93

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