LF198 National Semiconductor, LF198 Datasheet
LF198
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LF198 Summary of contents
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... High supply rejection ratio in sample or hold 10 n Wide bandwidth allows high n Space qualified, JM38510 Logic inputs on the LF198 are fully differential with low input current, allowing direct connection to TTL, PMOS, and CMOS. Differential threshold is 1.4V. The LF198 will operate ± ± from 5V to 18V supplies ...
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... IN OUT = 0 80 OUT = 25˚C 0 25˚ 25˚ (typicals) JA 115˚C/W 106˚C/W = −15V 25˚ 0.01 µ LF198/LF298 LF398 Typ Max Min Typ Max 100 0.002 0.005 0.004 0.01 0.02 0.02 ...
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... Note 7: Leakage current is measured at a junction temperature of 25˚C. The effects of junction temperature rise due to power dissipation or elevated ambient can be calculated by doubling the 25˚C value for each 11˚C increase in chip temperature. Leakage is guaranteed over full input signal range. Note 8: A military RETS electrical test specification is available on request. The LF198 may also be procured to Standard Military Drawing # 5962-8760801GA or to MIL-STD-38510 part ID JM38510/12501SGA. ...
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Typical Performance Characteristics Output Droop Rate DS005692-20 Leakage Current into Hold Capacitor DS005692-23 Power Supply Rejection DS005692-26 Note 10: See Definition www.national.com (Continued) Hold Step DS005692-21 Phase and Gain (Input to Output, Small Signal) DS005692-24 Output Short Circuit Current DS005692-27 ...
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Typical Performance Characteristics Input Bias Current DS005692-29 Output Transient at Start of Sample Mode Logic Input Configurations DS005692-33 Threshold = 1.4V (Continued) Feedthrough Rejection Ratio (Hold Mode) DS005692-30 Output Transient at Start of Hold Mode DS005692-12 TTL & CMOS 3V ...
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... Threshold = 0 Amp Drive DS005692-37 Threshold = −4V reduced if the output of the LF198 is digitized quickly after the hold mode is initiated. The hysteresis relaxation time constant in polypropylene, for instance — 50 ms. If A-to-D conversion can be made within 1 ms, hysteresis error will be reduced by a factor of ten. ...
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Application Hints (Continued) logic input for signal delay, calculate the slope of the wave- form at the threshold point to ensure that least 1.0 V/µs. Sampling Dynamic Signals Sample error to moving input signals probably causes more ...
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Typical Applications X1000 Sample & Hold * For lower gains, the LM108 must be frequency compensated Ramp Generator with Variable Reset Level www.national.com V OUT DS005692-39 Integrator with Programmable Reset Level DS005692-42 8 Sample and Difference Circuit (Output Follows Input ...
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Typical Applications (Continued) Output Holds at Average of Sampled Input Reset Stabilized Amplifier (Gain of 1000) DS005692-46 Fast Acquisition, Low Droop Sample & Hold DS005692-49 9 Increased Slew Current DS005692-47 DS005692-50 www.national.com ...
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Typical Applications (Continued) Synchronous Correlator for Recovering Signals Below Noise Level DC & AC Zeroing www.national.com DS005692-52 Staircase Generator DS005692-59 * Select for step height 50k 1V Step 10 2–Channel Switch DS005692- ± ± Gain 1 0.02% 1 ...
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... Small-Outline Package DS005692-15 Order Number LF298M or LF398M See NS Package Number M14A 11 DS005692-56 Metal Can Package DS005692-14 Order Number LF198H, LF198H/883, LF298H, LF398H, LF198AH or LF398AH See NS Package Number H08C (Note 8) www.national.com ...
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... Physical Dimensions Order Number LF198H, LF298H, LF398H, LF198AH or LF398AH www.national.com inches (millimeters) unless otherwise noted Metal Can Package (H) NS Package Number H08C Molded Small-Outline Package (M) Order Number LF298M or LF398M NS Package Number M14A 12 ...
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... NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant ...