Datasheet LF398AN - National Semiconductor IC, AMP SAMPLE AND HOLD, DIP8, 398

National Semiconductor LF398AN

Part Number: LF398AN

Detailed Description

Manufacturer: National Semiconductor

Description: IC, AMP SAMPLE AND HOLD, DIP8, 398

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Docket:
LF198/LF298/LF398, LF198A/LF398A Monolithic Sample-and-Hold Circuits
July 2000
LF198/LF298/LF398, LF198A/LF398A Monolithic Sample-and-Hold Circuits
General Description
The LF198/LF298/LF398 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 µs to 0.01%. A bipolar input stage is used to achieve low offset voltage and wide bandwidth. Input offset adjust is accomplished with a single pin, and does not degrade input offset drift. The wide bandwidth allows the LF198 to be included inside the feedback loop of 1 MHz op amps without having stability problems. Input impedance of 1010 allows high source impedances to be used without degrading accuracy. P-channel junction FET's are combined with bipolar devices in the output amplifier to give droop rates as low as 5 mV/min with a 1 µF

Specifications:

RoHS: Yes

Accessories: