Datasheet Linear Technology LT1397 — Даташит

Datasheets

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Корпус / Упаковка / Маркировка

Параметры

Экологический статус

Другие варианты исполнения

LT1395 LT1395 LT1396 LT1396

Design Notes

• Скачать
  Tiny Amplifiers Drive Heavy Capacitive Loads at Speed &mdash DN429
  PDF, 95 Кб, Файл опубликован: 30 окт 2007
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  Tiny Amplifiers Drive Heavy Capacitive Loads at Speed
  Design Note 429
  Keegan Leary and Brian Hamilton
  Introduction
  Parasitic capacitance lurks behind every corner of an
  electronic circuit. FET gates, cabling, ground and power
  planes all add to the Farad bottom line. When the capacitive load gets heavy in high speed circuits, careful op amp
  selection is paramount for optimizing slew rate, current
  output capability, power dissipation, and feedback loop
  stability.
  Demanding Circuit Requirements
  For example, consider a 100MHz, 2VP-P sine wave signal
  driving a 350pF capacitive load. The minimum required
  slew rate without distortion for this scenario is: SRMIN = 2ПЂfVPK
  SRMIN = 2ПЂ(100MHz)(1V)
  V
  ≈ 630
  Вµs
  The slew rate sets the maximum output current—the
  amplifiers are charging a capacitor, so the maximum
  output current occurs at maximum slew. I= C dV
  dt вЋ›
  VвЋћ …

Статьи

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  400MHz Current Feedback Amps Offer High Slew Rate without the Gain Bandwidth Product Limitations of Voltage Feedback Amps &mdash LT Journal
  PDF, 173 Кб, Файл опубликован: 1 фев 2000
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  DESIGN FEATURES 400MHz Current Feedback Amps
  Offer High Slew Rate without the Gain
  Bandwidth Product Limitations of
  by Brian Hamilton
  Voltage Feedback Amps
  Introduction
  The LT1395, LT1396 and LT1397 are
  400MHz current feedback amplifiers
  with a high slew rate and a –3dB
  bandwidth that remains relatively
  constant over a wide range of closedloop gains. The current feedback
  topology of the LT1395/LT1396/
  LT1397 family can provide improved
  performance in many new and existing designs that have historically used
  voltage feedback op amps. Because of
  its current feedback topology, the
  LT1395/LT1396/LT1397 family
  boasts a slew rate of 800V/Вµs on a
  supply current of only 4.6mA per
  amplifier, resulting in a much higher
  full-power bandwidth than comparable voltage feedback op amps. The
  current feedback topology of the
  LT1395/LT1396/LT1397 also results …

Модельный ряд

Классификация производителя

• Signal Conditioning > Amplifiers > Operational Amplifiers (Op Amps) > Current Feedback Amplifiers | High Output Current Amplifiers (>100mA) | High Voltage Amplifiers (>12V) | High Speed Amplifiers (GBW > 50MHz) | Low Noise Amplifiers (
• Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) Amplifiers