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Корпус / Упаковка / Маркировка

Параметры

Экологический статус

Другие варианты исполнения

LT1807 LT1807

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 …

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  LT1806: 325MHz Low Noise Rail-to-Rail SOT-23 Op Amp Saves Board Space &mdash DN254
  PDF, 76 Кб, Файл опубликован: 1 апр 2001
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  325MHz Low Noise Rail-to-Rail SOT-23 Op Amp
  Saves Board Space – Design Note 254
  Glen Brisebois
  The new tiny LTВ®1806 combines 325MHz gain bandwidth, 3.5nV/в€љHz voltage noise, 100ОјV input offset
  voltage and rail-to-rail inputs and outputs in a SOT-23
  package. The device is fully specified on 3V, 5V and
  В±5V supplies with a guaranteed maximum input offset
  voltage of 850ОјV at either rail over temperature. It is
  available in commercial and industrial temperature
  grades.
  1MΩ Transimpedance Amplifier Achieves Near
  Theoretical Noise Performance with Large-Area
  Photodiodes
  The circuit of Figure 1 shows the LT1806 in an ultralow
  noise transimpedance amplifier applied to a large-area
  high capacitance photodiode. The LT1806 is used for its
  high gain bandwidth and low noise. The IFN147 ultralow
  noise JFET1 operates at its IDSS (VGS = 0V) with a typical
  transconductance of 40mS. With its source grounded,
  the JFET and its drain resistor, R52, set a voltage gain
  of about 8. The combination of the ultralow noise JFET
  gain stage and the LT1806 low noise amplifier achieves
  the ultralow input noise performance. The circuit’s input …

Статьи

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  1MW Transimpedance Amplifier Achieves Near-Theoretical Noise Performance, 2.4GHz Gain Bandwidth, with Large-Area Photodiodes &mdash LT Journal
  PDF, 153 Кб, Файл опубликован: 1 май 2001
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  DESIGN IDEAS 1MΩ Transimpedance Amplifier
  Achieves Near-Theoretical Noise
  Performance, 2.4GHz Gain Bandwidth,
  with Large-Area Photodiodes by Glen Brisebois
  transimpedance circuit’s noise gain,
  which applies to voltage noise but not
  to current noise or resistor noise,
  rises drastically with frequency (noise
  gain = 1+ ZF/XC). As a sample calculation, a 500pF photodiode has an
  impedance of 3.2k at 100kHz, giving
  a 1MΩ transimpedance circuit a noise
  gain of 314 at that frequency. The
  theoretical noise floor of the 1M
  resistor is 130nV/в€љHz (at room temperature), so any input voltage noise
  above 0.41nV/в€љHz (130nV/в€љHz/314)
  will overtake the resistor noise at
  100kHz. Discrete JFETs are available
  with ultralow voltage noise but they
  have high input capacitance (75pF
  max for the IFN147). Serendipitously,
  the input capacitance of the JFET is
  relatively insignificant compared to
  the 500pF of the example large-area …

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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 …

Модельный ряд

Классификация производителя

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

Варианты написания:

LT1806IS6TRMPBF, LT1806IS6 TRMPBF