ZHCSSM5D May 1999 – February 2024 LM7171
PRODUCTION DATA
6.1.3 Compensation for Input Capacitance
The combination of an amplifier input capacitance with the gain setting resistors adds a pole that can cause peaking or oscillation. To solve this problem, a feedback capacitor with a value of
Equation 1. CF > (RG × CIN) /
RF
can be used to cancel that pole. For LM7171, a feedback capacitor of 2pF is recommended. Figure 6-1 illustrates the compensation circuit.
Figure 6-1 Compensating for Input Capacitance