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LF398N/NOPB .

采样保持放大器, 1个放大器, 1 MHz, 20 µs, 2 mV, DIP, 8 引脚

TEXAS INSTRUMENTS LF398N/NOPB .
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制造商产品编号:
LF398N/NOPB .
库存编号
2496205

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产品概述

The LF398N/NOPB is a monolithic Sample-and-Hold Circuit uses BI-FET technology to obtain ultrahigh DC accuracy with fast acquisition of signal and low droop rate. Operating as unity-gain follower, DC gain accuracy is 0.002% typical and acquisition time is as low as 6µs 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 1MHz operational amplifiers without having stability problems. Input impedance of 10¹⁰R allows high-source impedances to be used without degrading accuracy. P-channel junction FETs are combined with bipolar devices in the output amplifier to give droop rates as low as 5mV/minute with a 1µF hold capacitor. The JFETs have much lower noise than MOS devices used in previous designs and do not exhibit high temperature instabilities.
  • Low input offset
  • Low output noise in hold mode
  • Input characteristics do not change during hold mode
  • High supply rejection ratio in sample or hold
  • Wide bandwidth
  • Logic input compatible with TTL, PMOS and CMOS
  • 0.5mV Typical hold step at 0.01µF
  • 0.002% Gain accuracy
  • 500mW Power dissipation
  • ±15V Supply voltage

应用

工业

警告

该设备内置静电防护措施有限, 存放时引线应短接在一起, 或将设备放置在导电泡沫中, 以防止静电对MOS门造成损坏.

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:
1个放大器

:
1MHz

:
20µs

:
2mV

:
DIP

:
8引脚

:
± 5V 至 ± 18V

:
-

:
0°C

:
70°C

:
-

:
MSL 1 -无限制
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