Datasheet Texas Instruments LF298

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LF198A-N, LF398A-N
SNOSBI3B – JULY 2000 – REVISED NOVEMBER 2015 LF298, LFx98x Monolithic Sample-and-Hold Circuits
1 Features 3 Description The LF298 and LFx98x devices are monolithic
sample-and-hold circuits that use BI-FET technology
to obtain ultrahigh DC accuracy with fast acquisition
of signal and low droop rate. Operating as a unitygain follower, DC gain accuracy is 0.002% typical and
acquisition time is as low as 6 Вµs 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-N to be
included inside the feedback loop of 1-MHz
operational amplifiers without having stability
problems. Input impedance of 1010 О© allows highsource impedances to be used without degrading
accuracy. 1 Operates from В±5-V to В±18-V Supplies
Less than 10-Ојs Acquisition Time
Logic Input Compatible With TTL, PMOS, CMOS …