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LT1818 LT1818

Notas de Diseño

• Descargar
  High Frequency Active Antialiasing Filters &mdash DN313
  PDF, 161 Kb, Archivo publicado: jun 1, 2003
  Extracto del documento

  High Frequency Active Antialiasing Filters – Design Note 313
  Philip Karantzalis
  Introduction
  High frequency (1MHz or higher) active lowpass filters
  are now practical alternatives to passive LC filters mainly
  due to the availability of very high bandwidth (100MHz or
  higher) integrated amplifiers. Analog signal filtering applications with bandwidths in the megahertz region can
  be implemented by a discrete active filter circuit using
  resistors, capacitors and a 400MHz operational amplifier
  such as the LTВ®1819 or the LT6600-10, a fully integrated
  lowpass filter. The LT6600-10 has a fixed 10MHz frequency
  response equivalent to a fourth order flat passband Chebyshev function. An LT1819-based active RC lowpass
  filter can be designed to have a Chebyshev, Butterworth,
  Bessel or custom frequency response (up to 20MHz).
  The LT6600-10 Lowpass Filter
  The LT6600-10 is a fully integrated, differential, fourth
  order lowpass filter in a surface mount SO-8 package
  (Figure 1). Two external resistors ranging from 1600О© to
  100Ω set the differential gain in the filter’s passband from
  –12dB to 12dB, respectively. The LT6600-10 passband
  gain ripple is a maximum of 0.7dB to –0.3dB up to 10MHz
  and attenuation is typically 28dB at 30MHz and 44dB at
  50MHz. The signal to noise ratio (SNR) at the filter’s output …

Artículos

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  2500V/µs Slew Rate Op Amps Process Large Signals with Low Distortion at High Frequencies &mdash LT Journal
  PDF, 388 Kb, Archivo publicado: dic 1, 2002
  Extracto del documento

  DESIGN FEATURES 2500V/Вµs Slew Rate Op Amps Process
  Large Signals with Low Distortion at
  High Frequencies
  by Kris Lokere and Glen Brisebois
  Introduction
  The LT1818 and LT1819 are low distortion single and dual operational
  amplifiers that offer 400MHz gain
  bandwidth product and 2500V/Вµs
  slew rate. The parts operate with supplies from В±2V to В±6V and draw a
  typical supply current of only 9mA
  per amplifier.
  The amplifiers can drive 100Ω loads
  with a low distortion of –85dBc relative to a 5MHz, 2VP–P signal. In single
  5V supply applications, the output
  swings to 0.8V from either supply rail
  with a 500Ω load (to 2.5V), and to
  1.0V with a 100Ω load. The output
  current drive capability is typically
  70mA. The low distortion and good
  output drive capability, combined with
  the 6nV/в€љHz input voltage noise,
  make the LT1818/LT1819 an ideal
  choice for a wide variety of applications. …

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Clasificación del fabricante

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

Otros nombres:

LT1819CS8TRPBF, LT1819CS8 TRPBF