Operational Amplifier

Introduction

An operational amplifier (OP-AMP) is a very stable amplifier that can be used for a large number of linear operation. image credits - monolothic power system

Basic Operational Amplifier

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(1) Single Ended Operation of OP-AMP

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(2) Double Ended Operation of OP-AMP

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[{"selector":"#anim-1dc5003c-0bc1-4233-a783-db2952e64d22","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-4a09ead5-3591-4cfc-8f39-c3b6a407a360","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-58f99e23-5937-4283-80eb-74c4af92b7a4","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-9c536f86-2ac0-4a6c-b0a7-c7b7f1dfc516","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-0a05a3d8-1afa-49cd-95ad-f668d6432beb","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-030f40dd-af78-4046-928e-2423b1be9a12","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-d2cdcdeb-2756-4295-9560-599577dced36 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-31.520172798527952%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] An operational amplifier, or op-amp for short, is an electronic device that can amplify weak electric signals. image credits - ABLIC Inc.

Input offset voltage

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OP-AMP as an integrator

[{"selector":"#anim-db64166d-67e9-47d4-bb6f-77f4cff7a158","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-b0a98da6-72fe-4375-806c-342b6f752909","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-9e448007-cd0e-45ea-9d17-886aa9309dd7","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-b1680560-4554-4f87-a644-a700b5d00228","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-c5f0de4d-c8c8-4585-802c-1e831985f77d","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-3c8108ba-c547-4cef-8169-8c64370363b8","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-e89d5746-5cc9-4694-b20c-fb1ae4325773 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-28.132812367310756%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] When the output of OP-AMP is proportional to the integral of the input voltage, then such an amplifier is known as the OP-AMP integrator. image credits - Digikey

OP-AMP as a differentiator

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Applications

[{"selector":"#anim-cd8b096c-5ecc-41fb-b356-ddb80a262e14","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-065275cf-5eb3-4ef6-b94b-4d35128ca5ac","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-99dcf0d0-2e58-4f54-ba33-6fdd5ceb94ee","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-29148b72-7109-4fff-8c5d-b17188727545","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-51e97bf7-b9f2-43ce-8c7e-643d009bdd5d","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-03537ac0-1118-44c2-88f2-2a572a7e39eb","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-acb270f1-2d81-42a1-bd6a-f5cb67c1dbb5 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(24.963872680451693%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] The OP-AMP provides voltage changes, oscillations, filtration, etc. in many types of electronics and communication circuits. image credits - Rathy electrocic

[{"selector":"#anim-c4ec6e9e-9f21-43d3-9c49-33577aeca840 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(19.497213632994715%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] Read more

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