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OPA627和OPA603组合放大器提供传统和电流反馈两种运

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  • 上传时间:2021-11-29
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  • 标      签: OPA627 OPA

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Classical op amps such as the OPA627 have excellentperformance in applications where the required gain bandwidthis low compared to the gain-bandwidth product of theop amp. However, increasing closed-loop gain decreases theerror-reducing loop gain. Furthermore, starting at relativelylow frequencies, the loop gain rolls-off at 20dB/decade ofsignal frequency increase. In combination these effects canproduce significant errors, especially at higher frequencieswhere the loop gain can be very low.
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