Explanation: The gain of the differentiator circuit (RF / XC1) increases with increase in frequency at a rate of 20dB/decade. This makes the circuit unstable. 5. The increase in the input frequency of the differentiation amplifier to input impedance creates
A. Component noise
B. External noise
C. Low frequency noise
D. High frequency noise
Answer:A
Explanation: The gain of the differentiator circuit (RF / XC1) increases with increase in frequency at a rate of 20dB/decade. This makes the circuit unstable. 5. The increase in the input frequency of the differentiation amplifier to input impedance creates
A. Component noise B. External noise C. Low frequency noise D. High frequency noise
Explanation: The input impedance of the amplifier decreases with increase in frequency and make the circuit susceptible to high frequency noise such that noise can completely over ride differential output. 6. Calculate the gain limiting frequency for the circuit