Question

+VCC - Rc LV. + Vet V2 RM RW -VEE

Texas Instruments asks you to build an amplifier circuit. The requested amplifier must have a

high value of CMRR, which is why it is requested that the differential stage be a differential amplifier

with power source, see figure 1. Use transistor LM3046.

  1. Calculate the value of the gain in common mode. Calculate the gain value in differential mode.
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Answer #1

→ Value of gain in common mode can be calculated by, Arm = - («Re) (let li = R2 =R) ar where, a = Ich → Value of gain in diff

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