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ANALOG DEVICES ANALOG DEVICES Engineer weating safety goggles while working on an electronic device in a dark room with a spotlight Engineer weating safety goggles while working on an electronic device in a dark room with a spotlight Best of the Week - Op Amps Edition We love operational amplifiers. Most engineers do. They serve as essential components in effective analog signal chains and act as critical interfaces between sensors and our top-tier ADCs. Common functions of analog op amps include gain, buffering, filtering, and level-shifting. Our Top Op Amps Products, Year Over Year An image of product AD8676 from ADI AD8676 Ultra Precision, 36 V, 2.8 nV/√Hz Dual RRO Op Amp  Sample and Buy An image of ADA4870 product from ADI ADA4870 2500 V/μs Slew Rate, High Voltage, 1 A Output Drive Amp Sample and Buy An image of product AD8512 from ADI AD8512 Precision, Very Low Noise, Low Input Bias Current, Wide Bandwidth JFET Dual Op Amp Sample and Buy An image of product AD8628 from ADI AD8628 Zero-Drift, Single-Supply, Rail-to-Rail Input/Output Op Amp Sample and Buy An image of ADI chip product ADA4891-2 ADA4891-2 Low Cost CMOS, High Speed, Rail-to-Rail Amplifiers  Sample and Buy An image of product AD8656 from ADI AD8656 Low Noise, Precision CMOS Dual Amp Sample and Buy Logic Lounge: Unlock Your Inner Mindbreaker  Intuitively, we see it is a combination of a non-inverting amplifier for V2 and an inverting amplifier for V1. If we analyse the circult using superposition law (this is applicable assuming the circuit operates in linear region) we get: Vo - (L () () R1 R1 R3 + R4, With R1=R3 and R2 = R4 this simplifies to: In the circuit above, let R1=R2 = R3 = R4 = 1k} Difference Amplifier challenge Questions:  1. What is the Common Mode Rejection Ratio (CMRR) if we have perfectly matched resistors?  [Assume the amplifier’s CMRR is 120dB]  2. What is the CMRR if the resistors have a tolerance of 0.1%?  3. What is the CMRR if the resistors have a tolerance of 1%?  4. What input resistance does V2 ‘see’?  5. What input resistance does V1 ‘see’?  6. If the difference amplifier was AC-coupled, what impact would this inequality in input impedance have? Good luck! How did I do? → Screenshot from webinar - aircraft with spotlights on phased array systems UPCOMING WEBINAR | OCT 30, 2024 RF PCB DESIGN FOR PHASED ARRAY SYSTEMS THAT MAXIMIZES ISOLATION AND RETURN LOSS Register Now  ➔      Contact Us                Linkedin Instagram Analog Devices - Facebook Analog Devices - X YouTube myAnalog - Log In or Sign Up ©2024 Analog Devices, Inc. All Rights Reserved. Trademarks and registered trademarks are the property of their respective companies. Analog Devices, Inc. One Analog Way. Wilmington, MA 01887 U.S.A.