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Process Control New Product Update

Process Control New Product Update. DFAE Training Barcelona, June 2012 Paul Crook, I&I Segment Regional Marketing Manager Bernd Kraetzig, Field Application Engineer, Germany. Agenda. Introduction – Collateral and Process Control market trends Industrial analogue inputs Sensors

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Process Control New Product Update

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  1. Process ControlNew Product Update DFAE Training Barcelona, June 2012 Paul Crook, I&I Segment Regional Marketing Manager Bernd Kraetzig, Field Application Engineer, Germany

  2. Agenda • Introduction – Collateral and Process Control market trends • Industrial analogue inputs • Sensors • Sensor interfacing • Analog to digital conversion • Review of a related CftL • Industrial analogue outputs • Digital to analogue conversion • HART • Review of a related CftL • Close

  3. Agenda • Introduction – Collateral and Process Control market trends • Industrial analogue inputs • Sensors • Sensor interfacing • Analog to digital conversion • Review of a related CftL • Industrial analogue outputs • Digital to analogue conversion • HART • Review of a related CftL • Close

  4. Sales and design collateral related to Process Control • All inclusive sales presentation. • Available in Content on Distribution Portal • Sites of Interest • ADI Process Control Homepage http://processcontrol.analog.com/en/segment/pcia.html • Process Control Newsletter Subscription http://www.analog.com/en/content/adi_newsletters/fca.html • ADI Cross-reference and obsolete part search http://www.analog.com/dynamic/cross-reference/competitor_search.asp# • Online Webcasts • Design Considerations for Industrial Instrumentation and Process Control Systems http://www.analog.com/en/content/WC_DESIGN_INST_AND_PROCESS_CONTROL/webcast.html • Designing Programmable Logic Controller 4-20mA and Voltage I/O Modules http://www.analog.com/en/content/WC_PROG_LOGIC_CONTROLLER_4-20MA/webcast.html • Data Conversion Applications and Solutions for Precision Process Control http://www.analog.com/en/digital-to-analog-converters/da-converters/products/webcasts/CU_semweb_Data_Conversion_Apps_and_Solutions/resources/fca.html • System-level Analog Architectures for Process Control I/O Modules http://seminar2.techonline.com/registration/wcIndex.cgi?sessionID=adi_jun2410

  5. Sales and design collateral related to Process Control (cont.) • Solutions Bulletins • Industrial ICs Solutions Bulletin, Volume 10, Issue 8 editionhttp://www.analog.com/v10Industrial • Industrial ICs Solutions Bulletin, Volume 11, Issue 4 editionhttp://www.analog.com/en/analog-to-digital-converters/ad-converters/products/sb_industrial_solutions_bulletin_vol11_issue4/fca.html • Videos • ADM3052/3 Fully Isolated CAN Video http://videos.analog.com/?fr_story=4a510810c72585c14ad6c08fa1fcddf8569dc2d4&rf=bm • AD5421 16-bit 4-20mA loop powered DAC http://videos.analog.com/?fr_story=01fb39a76711ebba75a106e775ee9c162400c9ee&rf=bm • Circuits from the Lab • Homepage http://www.analog.com/en/circuits-from-the-lab/index.htm

  6. PROCESS CONTROL LEVELS OF OPERATION

  7. Process Control Sub-segments Focus Applications • Programmable Logic Controllers (PLCs) • A digitally operating apparatus that controls, actuates and monitors complex machine variables. • Distributed Control Systems (DCS) • Automation of a large facility or process often with multiple input systems that are controlled by a central host and complete software solutions. • Field Instruments/Temperature Controllers • Devices for sensing, transducing, monitoring, recording and controlling physical variables e.g. flow, temperature, pressure etc • Semiconductor Manufacturing • Equipment associated with the manufacture of semiconductors including implanters, beam probers, deposition systems, etching equipment, photolithography. Analog Devices Confidential Information

  8. PLC/DCS Architecture isoPower Technology RS232 Bus ASIC µP Signal Isolation RS485/ 422/ 232 DSP Solutions Reference Digital Isolation iCoupler Technology Bus Transformer Isolation Power Mgt Reference Analog Inputs Temp Pressure Motor Level Vibration +/-20mA Signal Condition Amp + MUX ADC SAR / SD Analog Outputs Valves Vents Control Actuators +/-20mA DAC Bipolar/LVSS V/I Amplifiers Systems can be partitioned as: Input Module Output Module I/O Module

  9. Field Instrument Example uC Physical Layer Protocol (uC) Sensor Sensor “INTERFACE” “SENSOR” Wireless Digital Interface RS485 = Signal Conditioning Processor Linearization Calibration Diagnostics Sensor Data Isolation HART Cable Analog Interface 0-10V 4-20mA Power Isolation Loop Power PowerSupply ( Conditioning )

  10. Industrial I/O Challenge Intelligent Integration Smaller form factor More channels in same area More Robust Intelligent Power Mgmt Smaller housing = heat Integrated power control More Robust Channel 1 Channel 1 Channel 2 Channel 2 Channel 3 Channel 3 Channel 4 Channel 4 Analog O/P Analog I/P Analog O/P Analog I/P Channel 1 Channel 1 Channel 2 Channel 2 Channel 3 Channel 3 Channel 4 Channel 4

  11. Communications – market trends • Direct Analog Signal from Sensor • Temperature sensor interface directly on PLC / DCS module • Temperature the most frequent quantity measured • RTD (Resistive sensors) and TC (Thermocouple) sensors well standardized • Analog Communication • 4-20mA • 0-20mA • 0-10V • 0-5V, ±10V • Digital Communications • HART • Profibus • Modbus • Interbus • DeviceNet • Profinet • EtherCat • CAN bus • Various physical (HW) layers • FSK (Frequency Shift Key) modulation • RS485 • Ethernet • CAN • Wireless communication • Emerging

  12. Functional Safety • Increasing interest in equipment qualified for certain Safety Integrity Level (SIL) • Relevant standard IEC61508 - http://www.iec.ch/functionalsafety/explained/ • This is a system level requirement which places constraints on electronic components in terms of: • Diagnostic features • Redundancy • Reliability • Certain of the newer industrial communications protocols such as EtherCAT, IO-Link, PROFIsafe include profiles to support functional safety

  13. Agenda • Introduction – Collateral and Process Control market trends • Industrial analogue inputs • Sensors • Sensor interfacing • Analog to digital conversion • Review of a related CftL • Industrial analogue outputs • Digital to analogue conversion • HART • Review of a related CftL • Close

  14. Types of Analogue Input • Voltage • 0 – 10V, ± 10V • Current (20mA) • Industrial Standard • 4 – 20mA loop • 0 – 20mA loop • RTD • Resistive Temperature Device • Pt100, Ni1000, Cu10, etc • Thermocouple • Two metals connected together • Low differential voltage (mV) • Second temperature sensor for Cold Junction Compensation (CJC)

  15. Sensor InterfacingNew amp and mux products aimed at industrial applications

  16. Amplifiers ? • What is Important in Process Control ? • >30V Capability • Robustness – Overvoltage Protection • Rail to Rail Inputs/Outputs • Integrated AMPS -> High Voltage Signal Conditioning and scaling. • Common Mode Rejection over wide range..

  17. ADA4084-x Next Generation OPx8436V, Low Noise, Low Power, Precision, RRIO Op Amp Key Features • Low Power: 650µA / amp • Low Noise: 3.9nV/√Hz • Low Offset: 100µV max • Low Drift: 1 V/C • Wide BW: 8.3 MHz • Fast Slew Rate: 4.0 V/µs • Low Input Bias Current: 80 nA Applications • Battery-powered Instrumentation • Power Supply Control and Protection • DAC Output Buffer • ADC Driver Low Noise Instrumentation Op Amp ADI Advantages Offering power consumption that is ~1/3 that of its closest competition with competitive GBP, Vos, and Vn specs and Ib that is consistent over the full common mode range the ADA4084 provides a truly RRIO Op Amp over the full operating range

  18. Funnel Amplifiers ADI introduces the industry's first fully differential attenuating precision amplifier. Our expert explains how AD8475 effectively drives low-voltage, high-precision differential input SAR ADCs in high-voltage applications. Learn more ...

  19. AD8475 : Funnel Amplifier + ADC Driver • Interface ±10V or ±5V signal on a single-supply amplifier • Integrate 4 Steps in 1 • Attenuate • Single-Ended-to-Differential Conversion • Level-Shift • Drive ADC • Drive differential 18-bit SAR ADC up to 4MSPS or the equavalent ∑-∆ ADC with few external components 19

  20. AD8475: Differential Funnel Amp & ADC Driver BENEFITS • Connect industrial sensors to high precision differential ADC’s • Simplify design • Enable quick development • Reduce PCB size • Reduce cost APPLICATIONS • Process control modules • Data acquisition systems • Medical monitoring devices • ADC driver Large Input Signal Low Voltage ADC Inputs Funnel KEY FEATURES • Active precision attenuation • (0.4x or 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 KEY SPECIFICATIONS • Bandwidth: 150 MHz • Noise: 10 nV/√Hz RTO • Slew rate: 50 V/μS • Distortion: -112dB THD+N • Gain drift: 3 ppm/°C max • Output offset: 500 μV max • Quiescent power supply: 3 mA 20

  21. Over Voltage Protection (OVP) Amplifiers

  22. +24v Power Power Block -15v +15v ADC Analog Inputs +/-10v Standard Input Module Connection Why Over Voltage is needed ? Power Block Floating. Say its 0V +24v Power ADC High Current Flow, Diode Switches on.. Mis-wired Module..

  23. OVP Solution Internal ESD Protection Advantage Cheap Solution Disadvantage Not robust enough • External Diode Protection • Advantage • Cheap Solution • Disadvantage • Not suitable for some applications (i.e. Precision) • Variable leakage current • Variable capacitance • Increase in non-linearity • Need external circuitry • Differential Diode Protection • Advantage • Cheap Solution • Constant leakage current and capacitance • Disadvantage • Need external circuitry • ADI OVP Solution • Advantage • Integrated OVP solution • Provides most , if not all protection needed • Saves board area • Disadvantage • Might need extra external protection ADA4091 23

  24. ADA4096-x Improved OPX9636V, RRIO, Precision, µPower Op Amp with OVP Gen 3 OVP ADI Advantages With 2X BW, ½ Vos and Vn, and ~1/10 Isy of the closest competition; the ADA4096 provides the industry’s highest level of over voltage protection for robust operation in demanding I&I applications Key Features • Internal Input Over Voltage Protection • Up to ±32V beyond the Rails • Characterized OVP Parametric Impact(compared to external OVP solutions) • Low Power: 60 µA • High GBW: 450 kHz • Low Offset Voltage: 35 µV Applications • Battery Monitoring • Sensor Conditioning • Current shunt sense • Process Control (PLC/DSC) • Portable Power Supply Control and Instrumentation • Wireless Base Stations 24

  25. Switch/Mux Protection Products

  26. ADG14xx ADG12xx Switches & Multiplexers Dual Supply Single Supply Industry Leading Ultra Low On Resistance Small Packages +3.3 to +16 V ± 3.3 to ± 8 V ADG16xx ADG6xx iCMOS Process Industry leading Industry standard Low On Resistance Low Capacitance +2.7 to +5.5 V ± 2.7 to ± 5.5 V ADG4xx, ADG5xx, ADG2x Protection Products Low On Resistance Small packages Fault protection Channel protectors Industry Leading +5V to +12 V, ±5 V to ±15 V iCMOS Process Industry leading NEW Protection Products Industry standard Low On Resistance Low Capacitance ±15V Operation Power off protection, Latch up proof, 8kV ESD Others Low capacitance Low charge injection Low leakage Small packages

  27. ADG54xx – Low On Resistance Latch up Proof Switches and Multiplexers KEY FEATURES • Robustness • Latch-up Proof • 8kV HBM ESD • High Performance • High Voltage: ±9V to ±22V or +9V - +40V • Low Ron < 10Ω • 0.1 nA leakage typ • Small packages • 16-lead TSSOP, 4mm x 4mm LFCSP package • Other advantages • 3 V logic Compatible Digital Inputs

  28. ADG52xx – Low Charge Injection Latch up Proof Switches and Multiplexers KEY FEATURES • Robustness • Latch-up Proof • 2.5kV HBM ESD (4xSPST version) • High Performance • High Voltage: Up to 22V dual supply & 40V Single Supply • Low Qinj: (0.07pC 4xSPST) – industry leading • Low leakage: (400pA max @ 125°C 4xSPST) - industry leading • Small packages • Other advantages • 3 V logic Compatible Digital Inputs

  29. ADG46xx – Low On Resistance Power Off Protection Switches KEY FEATURES • Robustness • Switch guaranteed Off with no power supplies present • Inputs are high impedance with no power • Pass negative signals with single supply voltage • ±3.3V to ±8V dual supply operation • +3.3V to +16V single supply operation • High Performance • 6.1 Ω max @ 25°C • Ultra-low flatness = 1.75 Ω • Small packages • 16-lead TSSOP, 4mm x 4mm LFCSP package

  30. CASE STUDY:Adjustable Gain Stage(or input muxing)Distortion and Errors caused by CMOS Switch

  31. Reasonsfor „handmade“ PGA • Amplifierof PGA has not theappropriatespecifications • Gainstagesof PGA do not fit application • Whatis a PGA???

  32. ADA4001-x – Low Noise, Audio Frequency AppsLow Noise, Low Input Bias Current, 10 MHz, JFET, RRO Amp Key Features • Rail-to-Rail Output • Output swings to ≤0.2V of the rail • Maximizes dynamic range • Low Noise: • 7.2nV√Hz @ 1kHz • 0.7µVpp from 0.1 to 10Hz • Low Isy: 1.85mA typ • High CMRR and PSRR • Low Power Consumption Applications • Line Drivers and Receivers • Professional Audio and Music • Active Filters and PreOp Amps • Integrators and Crossover Networks ADI Advantages With RRO, ½ the power, 13dB better CMRR, 20% higher BW, 10% lower noise versus the closest competition the ADA4001 has leading specifications at a competitive price

  33. …morecompicatedthanitlookslike. The waytotheconverterissometimes…

  34. DC Weakness Gain Error depending on signalVoltage Noswitch in signalflow G=-1 (canbecalibrated) Switch in signalflow Vin=1V Vout =1,153V Vin=10V Vout =11,413V Error about 1%, not a goodideafor 12-16bit System.

  35. RdsonFlatnessof ADG1211

  36. RdsonFlatnessof ADG1411

  37. The exampleis extreme, but: • beawareofRDSonFlatness • uselowRDSon Switches (theyhave also lowerflatness) • usehighervalueseriesresistors (beawareofnoise, others) • use PGA like AD825x series. Max. gainerrorfor AD8250 is 0.04%

  38. AD8253 Digital ProgrammableGain Instrumentation Amplifier (PGIA) Key Features • Digital Gain settings: • 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/µs slew rate • Settling Time 0.5us to 0.01% • 12 nV/√Hz, @ 1 kHz max. • 10pmm/°C gain drift • -40°C to +85°C Package 10-L MSOP 3mm x 3mm

  39. Analog to Digital conversionRefs, low power ADC

  40. ADI Voltage Reference Portfolio Temperature Coefficient High Precision Low Cost /Low Power Low Noise ADR45xx/46xx# ADR45xx# <5 ppm/oC ADR43xB ADR46xx# ADR0xB ADR44xB ADR34xx35xx# ADR4xxA ADR34xx# 5-30 ppm/oC ADR29x ADR38x ADR35xx# ADR36xB ADR36xA ADR51x * ADR504x * >30 ppm/oC >50 ppm/oC ADR1581/2 * ADR158x ADR58x # New * Shunt References

  41. ADR34xx: Precision, µPower, Voltage References KEY Features • Max TC of 8ppm/ºC • 100µA Max quiescent current • Low initial output V error: 0.1% Max • Long term drift: 30ppm/1khr typ. • -40oC to +125oC Operation • Small SOT23-6 package • Input voltage: 2.3V to 5.5V • Output current: Source 10mA Sink 3mA • Low output noise (0.1 Hz to 10 Hz): • < 18 μVpp (typical) at 2.5 Vout Improved Second Source for TI’s REF32xx family

  42. ADR34xx Competition

  43. Differential Pressure (Main Value Measured) POWER MANAGEMENT In-AMP (PGA) ADC (24-bit) LINEAR REGULATORS LINEARREGULATOR and/or SWITCH MODE REGULATOR 12V..50V 4-20mA S-D ADC uC CALIBRATION LINEARIZATION COMPENZATION uC COMMUNICATION 4-20mA Driver DAC (16-bit) Static Pressure (Compensation) DAC MUX In-AMP (PGA) ADC (24-bit) VREF Temperature (Compensation) S-D ADC HART MODEM DIAGNOSTICS uC DISPLAY LCD WATCHDOGS Field Instrument – Example Pressure Transmitter

  44. AD7792/93/94/98/99 Family Overview KEY FEATURES • Low Power (300 μA to 450 μA) • Internal Programmable Gain Amplifier • Chopping – superior offset & drift specs • Internal Clock & Buffer • Simultaneous 50 & 60 Hz Rejection • 4sps to 500sps Output Data Rate • Supply: 2.7V to 5.25V • Temperature: -40°C to +105°C

  45. CASE STUDY:Errors in Temperature Measurement

  46. RTD Input from PLC Demo System

  47. SelfHeating: • Example: • PT1000 • 1 mA Current Source • Selfheatingcoeficient: S= 0.3K/mW • ΔT = 0.3K/mW x 1kOhm x (1mA)2 = 0.3K • Uselowercurrent (but: meanslowervoltagetomeasure)

  48. Wire Resistance: • Example: • PT100 • 10m sensorcable, 0.1mm2 (means 20m ofwire) • 3.56 Ohm • Measured resistance: 103.56 Ohms: • Approx 9°C • Use 4-wire solutionorothercable

  49. Analog Input Leakage: • Example: • PT100 • 210 μA Current Source • 250 pA (AD7793 Datasheet) • RC Input filterused in PLC Demo: 2x1K • Voltage drop across filter: 0.25 mV • Voltage at PT100 for 0°C 21 mV • Voltage of 21.25 mV means 3°C. • But leakagecurrentismoresymmetricforbothinputs

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