Advanced Linear Products Industrial, Instrumentation and Automotive Products (IIA)
CORE TECHNOLOGY HCMV IA 00, 01 Focus 02 Focus Strategy - Leverage Broad Product Portfolio and Customer Base into Higher Growth Markets with Value Added Solutions VGA TEMP SENSOR MAG SENSOR RMS-DC/MULT IIA Core Technology and Markets with Growth Rate IA Comms 22% Power Supply Monitor Laser Diode Control Base Station (IF Receive) Automotive 39% Powertrain HVAC Safety Systems Transmission Control Wheel Speed Industrial 10% Process Control Process Control Process Control Proximity Sense Medical 9% Power Monitor Patient Monitor Ultrasound Patient Monitor Instrumentation 5% High Voltage Data Acq. Data Acquisition Over Heat Detect Power Measurement
Instrumentation Amplifier Facts What is an In-Amp? Has differential input Very high CMRR Very high R in Ultra-low input bias currents Provides gain Has single-ended output with respect to a reference terminal -V S -V IN - Differential Input R G Gain V O V IN V S V REF reference terminal
Signal Chain We are here IN- AMP ADC DSP Interface logic To analog output
Benefits of Monolithic In-Amps Discrete Monolithic V IN Op-Amp -V S _ R5 R1 R2 V IN - R G _ Op-Amp V OUT R G Gain V O V IN _ Op-Amp R6 R3 2-3 op amps 7-9 resistors Too much board space High costs bill of materials manufacturing R4 Reference -V IN V S V REF 1 in amp 1 resistor Less board space Less cost Better performance Less components equals better reliability
Selecting Instrumentation Amplifiers 10 AD524 AD624 High Accuracy [$/Qty 1000] 4 3 2 Not Recommended for New Designs AD620 Industry Leaders AD621 AD626 AD622 Low Cost AD627 AD629 AD8225 AD628 1 Low Power AD623 AD8200 1983 1984 1991 1992 1996 1997 1999 2002
AD620 - Industry Standard In Vs Rg AD620 Vout In- - Vs- Vref Bandwidth (G=1): RTI Voltage Noise, 1kHz: 800kHz 13 nv/ Hz (max) Input Offset Drift: 1 µv/ C
AD623 Low Cost In Amp V IN Op-Amp _ R5 R1 R2 CMRR G=1 (min) 70 db Min @ 60Hz R G _ Op-Amp V OUT Offset Drift (max) 2mV/ C Max _ Op-Amp R6 R3 R4 Reference Gain Drift (max) 10 ppm/ C V IN Available in micro SOIC package Single Supply 5 V Rail-to-Rail Output Swing
AD627 Low Power In Amp Supply Current (max): 85mA Wide Supply Voltage Range: 2.2V to 36V In Vs Rg AD627 Vout In- - Vs- Vref /-5V Vs; G = 5;
AD8225 Precision G=5 In-Amp Performance VS. AD620 in Gain of 5 V S -IN G=1 5R Check the specs yourself! AD8225 has. _ R G=5 Lower Gain Drift _ - OUT Lower Offset and Drift Faster Slew Rate IN -V S R REF 5R Better Common Mode Voltage Range No Need for Gain Set Resistor Samples: Now Intro: 1Q02
AD8225 CMRR vs. Frequency 120 100 Perfect for Patient Monitoring (ECG) CMRR (db) 80 60 40 20 AD8225 CMRR (db) AD620 CMRR (db) G=5 0 0.1 1 10 100 1000 10000 100000 1E06 Frequency (Hz)
AD629 Difference Amplifier Power Supply Output Current Monitor ±270V max _ AD629 15V V O =(I L )(R S ) CMRR G=1 (min) 77dB min @ 60Hz Offset Drift (max) Output POWER SUPPLY R S (mw s) I L LOAD -15V 20mV/ C Gain Drift (max) 10 ppm/ C Poor Man s Isolation Amplifier 270V Common Mode Voltage Operating Range 500V Input Protection
AD628 - High Common Mode Voltage Difference Amplifier Where does it fit in the Signal Chain? Sensor Attenuation Level Shift Filter Gain A/D AD628 integrates these blocks
AD628 - High Common Mode Voltage Difference Amplifier 10:1 Attenuation at Input ± 100V Input Common Mode Voltage Range V 7 R G Ext 2 R G Ext 1 6 V G Programmable Gain Range: 0.1 to 1000 Input 5V, ±5V 10V, ±10V 4 20mA V - IN V IN 8 1 100K 100K 10K 10K 100K Filter 5 V O Output 1V to 4V ±4V ±13V V OSI V OSI TC CMRR 2 V - 3 4 V REF V COMP 1mV 10mV/ C 80dB Platforms/Applications PLCs Analog Front End Isolation Motor Control High Voltage Current Sensing
AD628 Pricing and Availability Samples February 2002 Release July 2002
Typical High Side Current Sense Application ADI VS. Discrete Architecture - Precision DC Design for Low Drift Errors WITH Flat CMRR (80db) Out to 10kHz (Difficult to find a DC precision op amp with high frequency performance ) 5 V
AD8200 High Common-Mode Voltage Difference Amplifier CMRR 80dB Min DC to 10 khz Gain Drift 20 ppm/ C Max Offset Drift 15 mv/ C Max Common-Mode Voltage Operating Range: 2V to 24V @ 5V Supply Operating Temperature Range: Load Dump Protection 40 to 150 C 44V for 300mS
AD8200 VS. AD8201 (In Red) 4 Optional 5 CMRR 80dB Min DC to 10 khz 1 8 Common Mode Control 3 (70dB Min DC to 10 khz) Gain Drift 20 ppm/ C Max (30 ppm/ C Max) Offset Drift 2 6 7 15 mv/ C Max (20 mv/ C Max) Common-Mode Voltage Operating Range: 2V to 24V @ 5V Supply Operating Temperature Range: Load Dump Protection 40 to 150 C 44V for 300mS
Where to Find More Information on ADI s Instrumentation Amplifiers Website: www.analog.com/inamps Application Guides: A Designer s Guide to Instrumentation Amplifiers (01/00) Selection Guide August 2001 www.analog.com/support/standard_linear/selection_guides/inamp.html Amplifier Solutions Bulletin May 2001 www.analog.com/bulletins/amps Amplifier Sales Primer Technical Topics Short Form Guide ADI Faxback System Distributor Corner www.analog.com/distributor Technical Apps: 1-800-ANALOG-D Now Available: AD620/1/2/3/7 & AMP02/04 Evaluation Boards 19
Background of VGAs at ADI VGAs are a core competency of ADI ADI has been providing VGAs for ultrasound since 1991 (first products were AD600/602) Leader in high performance VGAs for frequencies below 100 MHz Next generation VGAs will extend high performance beyond 100 MHz all the way to 2.5 GHz VGAs are a strategic focus for ADI
AD8331/2/4 Key Features and Specs LNA: Ultralow Noise: 0.75 nv/rt-hz; 2.5 pa/rt-hz Active Termination Match via External Resistor VGA: 48 db Gain Range Post-Amplifier with 12 db Gain Switch Output Noise Optimized for 10/12 bit ADCs Fully Differential Selectable Output Clamping Levels LNA VGA: 150 MHz BW Single 5V Supply Low Power: 125mW per channel AD8331/2/4 (Single/Dual/Quad) have identical Channels
AD8332 - Basic Connections
AD8332 1 st Silicon Performance 50 10/18/01 Overall Frequency Response -- 50 ohms input match w/ Interim Stability Networks at input and output (untrimmed material) 40 30 Gain (db) 20 10 0-10 -20 1.00E05 1.00E06 1.00E07 1.00E08 1.00E09 Hz 0v 100mv 200mv 300mv 400mv 500mv 600mv 700mv 800mv 900mv 1.0v 1.1v 1.2v
AD8332 1 st Silicon Performance 1000 AD8332 Input Impedance vs Frequency 100 Input Impedance (W) 10 50Ω Reference Line 1 100,000 1,000,000 10,000,000 100,000,000 1,000,000,000 Frequency (Hz)
AD8332 1 st Silicon Performance 1000 Preliminary output and input referred noise voltage: Vgain at 10MHz This part untrimmed; Trimmed parts should have output noise better than 50nV/rt(Hz) 100 output referred noise voltage nv/roothz 100 10 10 1 input referred noise voltage nv/roothz 1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 0.1 Vgain Volts Vn_out 10MHz Vn_in 50MHz
Typical Interface between VGA and ADC
ALP Marketing Overview Industrial, Instrumentation & Auto (IIA) Marketing Contacts: Eberhard Brunner Johan Perozo RF/IF and Linear Specialist Marketing Specialist INA & VGA (49 89) 76903-415 781-937-1994 eberhard.brunner@analog.com johan.perozo@analog.com Jim Staley Stephen P. Lee Senior IIA Applications Engineer IIA Applications Engineer 781-937-2279 781-937-1913 james.staley@analog.com stephen-p.lee@analog.com Chuck Whiting Jen Hardy IIA Automotive Applications Engineer IIA Marketing Engineer 781-937-1540 781-937-1747 charles.whiting@analog.com jennifer.hardy@analog.com