Datasheet Linear Technology LT1809 — Даташит

Datasheets

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Экологический статус

Другие варианты исполнения

LT1810 LT1810

Design Notes

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  Fast Op Amps Operate Rail-to-Rail on 2.7V &mdash DN241
  PDF, 77 Кб, Файл опубликован: 1 окт 2001
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  Fast Op Amps Operate Rail-to-Rail on 2.7V
  Design Note 241
  Glen Brisebois
  The new LTВ®1806 and LT1809 are fast operational
  amplifiers with rail-to-rail inputs and outputs. The
  LT1806 is optimized for low noise (3.5nV/в€љHz) and
  offset (100ОјV typical, 550ОјV max) and has a 325MHz
  gain bandwidth product. The LT1809 is optimized for
  low distortion (–90dBc to 5MHz) and has a 180MHz
  gain bandwidth product. Both amplifiers have 85mA
  output drive capability and are fully specified over
  commercial and industrial temperature ranges on 3V,
  5V and В±5V supplies.
  Parallel Composite Amplifier Achieves
  Low Distortion into Heavy Loads
  Achieving low distortion is difficult enough and driving
  heavy loads only makes the undertaking more difficult.
  Figure 1 shows a parallel composite topology where
  each amplifier is given a different responsibility. Amplifier U1 is configured in a standard gain of 2 to account
  for the eventual attenuation caused by the 50О© output
  divider. Amplifier U1 alone can drive the load, but its
  distortion figures would suffer. Therefore, amplifier
  U2 is added in a slightly higher gain and its output is …

Статьи

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  Low Distortion Rail-to-Rail Amplifiers Drive ADCs and Cables &mdash LT Journal
  PDF, 174 Кб, Файл опубликован: 1 ноя 2000
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  DESIGN FEATURES Low Distortion Rail-to-Rail Amplifiers
  Drive ADCs and Cables
  by William Jett, Danh Tran and Glen Brisebois
  tion –90dBc at fC = 5MHz (VS = 5V, VO
  = 2VP-P). Both parts are fully specified
  for 3V, 5V and В±5V operation and are
  available in 8-lead SO and 6-lead
  SOT-23 packages. A shutdown function is included that disables the
  amplifier and reduces the supply current to less than 1mA. Performance
  Table 1 summarizes the performance
  of the LT1806 and LT1809. Note that
  input offset voltage is specified at
  both the positive and negative supply
  rails, in contrast to most competitive
  parts, which are only specified at midsupply. Table 1. LT1806/LT1809 key performance specifications LT1806 LT1809 Gain-Bandwidth Product 325MHz 180MHz Slew Rate 140V/Вµs 350V/Вµs Input Voltage Noise 3.5nV/в€љHz 16nV/в€љHz Harmonic Distortion, RL = 1k
  fC = 5MHz, VS = 5V, AV = 1, VO = 2VP-P –80dBc –90dBc Settling Time 0.01%
  VSTEP = 2V, VS = 5V, AV = 1 60ns LT1809
  AV = 1
  VIN = 2VP-P
  VS = ±5V –50
  –60
  –70 RL = 100Ω, 2ND –80 RL = 100Ω, 3RD
  –90 …

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Классификация производителя

• Signal Conditioning > Amplifiers > Operational Amplifiers (Op Amps) > High Speed Amplifiers (GBW > 50MHz) | High Voltage Amplifiers (>12V) | Rail-to-Rail Amplifiers