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CBMLM358AS8 bảng dữ liệu(PDF) 8 Page - COREBAI Microelectronics (Beijing) Co., Ltd. |
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CBMLM358AS8 bảng dữ liệu(HTML) 8 Page - COREBAI Microelectronics (Beijing) Co., Ltd. |
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8 / 15 page ![]() 8 www.corebai.com CBMLM321-CBMLM358-CBMLM324 OPERATION INSTRUCTION Figure 2. Indirectly Driving a Capacitive Load Using Isolation Resistor The bigger the RISO resistor value, the more stable VOUT will be. However, if there is a resistive load RL in parallel with the capacitive load, a voltage divider (proportional to RISO/RL) is formed, this will result in a gain error. The circuit in Figure 3 is an improvement to the one in Figure 2. RF provides the DC accuracy by feed-forward the VIN to RL. CF and RISO serve to counteract the loss of phase margin by feeding the high frequency component of the output signal back to the amplifier’s inverting input, thereby preserving the phase margin in the overall feedback loop. Capacitive drive can be increased by increasing the value of CF. This in turn will slow down the pulse response. Figure 3. Indirectly Driving a Capacitive Load with DC Accuracy |
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