Expression shown in video for CMRR is incorrect. You have taken the CMRR expression for differential amplifier with Res load and applied it to 1 stage op-amp. This won't work because half-ckt load impedance for Acm vs. Adiff are different for 1 stg opamp, unlike where they are same for differential amplifier with Res load.
Thank you for posting!
For others watching:
27:22 r_ds0 is 50kohm
Ty
Expression shown in video for CMRR is incorrect. You have taken the CMRR expression for differential amplifier with Res load and applied it to 1 stage op-amp. This won't work because half-ckt load impedance for Acm vs. Adiff are different for 1 stg opamp, unlike where they are same for differential amplifier with Res load.
txs