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应用功能：采样保持放大器 LF198/LF298/LF398, LF198A/LF398A are monolithic sample-and-hold circuits which utilize BI-FET technology to obtain ultra-high dc accuracy with fast acquisition of signal and low droop rate. Operating as a unity gain follower, dc gain accuracy is 0.002% typical and acquisition time is as low as 6 ms to 0.01%. A bipolar input stage is used to achieve low
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