Analog Circuit Design Engineer Interview _Find Overall Gm of the circuit

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Analog Design Interview/Screening Test questions for Texas Instrument ,Micron Technology, ST Microelectronics, Synopsys, Steradian semiconductor, NXP Semiconductor, Analog Devices, Intel, Samsung etc.
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All important interview question-
*Analog Design Engineer Interview Question:
• Find small signal Vo f...
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Опубликовано:

21 май 2024

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Комментарии : 5

@AllenSA_Lily 2 месяца назад

Thank you sir👍

@101_avikghosh6 2 месяца назад

Sir being in full volume the sound is too low.... Please solve this issue sir .. ❤

@AmitBar-Analog_Circuits 2 месяца назад

Sure

@dushyantsinhdabhi4772 2 месяца назад

In the intuitive approach, you mentioned that Vin is applied to M1 and all of the that is appearing at source terminal of it according to source follower concept but you mentioned its a CS amplifier at the start of the intuitive analysis when we define its GM1 using source degeneration method. So, how can we consider it as a CS amplifier initially and later on as a source follower while applying the super position theorem? Could you please clarify it?

@AllenSA_Lily 2 месяца назад

Thank you Sir 😊 cs stage with current source load and use a line from s1 to connect g2 Transconductance GM=iout/vin iout+gm1vgs1+gm2vgs2=0..(1) iout+gm1(vin-vs)+gm2(vs-0)=0...(1) And then vgs1=vin-gm1vgs1*Rs...(2) vgs1=vin/(1+gm1Rs)...(2) again vin-vs=vin/(1+gm1*Rs)..(2) vs=vin(gm1*Rs)/(1+gm1*Rs)....(2) Substitute (2) into equation (1) iout+gm1vin-gm1vs+gm2vs=0...(1) iout+vs(-gm1+gm2)+gm1vin=0..(1)