Differential Amplifier Design (Amplifiers #6)

[@drakejoseph513]

Thank you for making these! I've had some trouble understanding differential amplifiers for a while, but this clears things up! Keep up the good work.

[@oakspines7171]

Meaningful details analysis and systematic approach. Thanks.

[@comeflywithme1694]

Very helpful for review before my exam. Thank you.

[@paulperano9236]

Or leave the gain = 1 and and another stage immediately after to provide the gain required. This way you get a nice clean signal and at the gain you need.

[@huntma3787]

8:20 why is the more negative side of the differential voltage connected to the same gnd resistor R4? It doesn't have to be in real applications does it, you are just doing for ease of calculation

[@huntma3787]

Actually answered my own question, one can easily derive the same result using Vd = Vsig-pos - Vsig-neg and not assuming Vsig-neg is zero

[@sefalibhakat143]

Thanks..

[@manuelneuer4345]

can you send this presention as a pdf?

[@SebastianRoubertMartinez]

i don't understand the original schematic based on KVL. based on the original schematic, v_1 = v_cm and v_2 = v_cm. and since v_cm is w.r.t. ground, there's a closed loop. so v_cm - v_cm + v_transducer = 0. this intutively doens't make sense