Explanation: To avoid saturation problems, the feedback capacitor is shunted by a feedback resistance(RF). The parallel combination of RF and CF behave like a practical capacitor which dissipates power. For this reason, practical integrator is called as a lossy integrator. 8. Determine the lower frequency limit of integration for the circuit given below.
A. 43.43kHz
B. 4.82kHz
C. 429.9kHz
D. 4.6MHz
Answer:A
Explanation: To avoid saturation problems, the feedback capacitor is shunted by a feedback resistance(RF). The parallel combination of RF and CF behave like a practical capacitor which dissipates power. For this reason, practical integrator is called as a lossy integrator. 8. Determine the lower frequency limit of integration for the circuit given below.
A. 43.43kHz B. 4.82kHz C. 429.9kHz D. 4.6MHz
Explanation: The lower frequency limit of integration, f= 1/(2πRFCF) = 1/(2π×1kΩ×33nF) = 4.82kHz. Sanfoundry Global Education & Learning Series – Linear Integrated Circuit.