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A certain Op-Amp has three terminal amplifier stages with the following gains
Stage I : Av1 = 40 dB
Stage I : Av2 = 32 dB
Stage I : Av3 = 20 dB
The open-loop mid range gain in decibels?
Stage I : Av1 = 40 dB
Stage I : Av2 = 32 dB
Stage I : Av3 = 20 dB
The open-loop mid range gain in decibels?
Correct answer is '92'. Can you explain this answer?
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A certain Op-Amp has three terminal amplifier stages with the followin...
The correct answer is: 92
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A certain Op-Amp has three terminal amplifier stages with the followin...
To find the open-loop mid-range gain in decibels, we need to calculate the overall gain of the three amplifier stages.
Stage I: Av1 = 40 dB
Stage II: Av2 = 32 dB
Stage III: Av3 = 20 dB
To find the overall gain, we can use the formula for cascaded amplifiers:
Overall Gain (Av) = Av1 + Av2 + Av3
Let's calculate the overall gain.
Stage I: Av1 = 40 dB
This means that the gain of Stage I is 10^(40/20) = 100.
Stage II: Av2 = 32 dB
This means that the gain of Stage II is 10^(32/20) = 40.
Stage III: Av3 = 20 dB
This means that the gain of Stage III is 10^(20/20) = 10.
Now, let's calculate the overall gain.
Overall Gain (Av) = Av1 × Av2 × Av3
= 100 × 40 × 10
= 40,000
To convert the overall gain to decibels, we use the formula:
Gain (in decibels) = 20 × log10(Av)
Gain (in decibels) = 20 × log10(40,000)
= 20 × 4.602
= 92.04 dB (approximately)
Therefore, the open-loop mid-range gain is approximately 92 dB.
Stage I: Av1 = 40 dB
Stage II: Av2 = 32 dB
Stage III: Av3 = 20 dB
To find the overall gain, we can use the formula for cascaded amplifiers:
Overall Gain (Av) = Av1 + Av2 + Av3
Let's calculate the overall gain.
Stage I: Av1 = 40 dB
This means that the gain of Stage I is 10^(40/20) = 100.
Stage II: Av2 = 32 dB
This means that the gain of Stage II is 10^(32/20) = 40.
Stage III: Av3 = 20 dB
This means that the gain of Stage III is 10^(20/20) = 10.
Now, let's calculate the overall gain.
Overall Gain (Av) = Av1 × Av2 × Av3
= 100 × 40 × 10
= 40,000
To convert the overall gain to decibels, we use the formula:
Gain (in decibels) = 20 × log10(Av)
Gain (in decibels) = 20 × log10(40,000)
= 20 × 4.602
= 92.04 dB (approximately)
Therefore, the open-loop mid-range gain is approximately 92 dB.
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A certain Op-Amp has three terminal amplifier stages with the following gainsStage I : Av1 = 40 dBStage I : Av2= 32 dBStage I : Av3= 20 dBThe open-loop mid range gain in decibels?Correct answer is '92'. Can you explain this answer?
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