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LT6012 LT6012

Notas de Diseño

• Descargar
  Dual 25ВµV Micropower Op Amp Fits in 3mm x 3mm Package &mdash DN331
  PDF, 82 Kb, Archivo publicado: feb 2, 2004
  Extracto del documento

  Dual 25ВµV Micropower Op Amp Fits in 3mm Г— 3mm Package
  Design Note 331
  Glen Brisebois
  Introduction
  Conventional monolithic micropower op amps with a
  wide supply voltage range require a large die area and
  therefore, a large package and footprint. The unconventional LTВ®6011 dual op amp п¬Ѓts 25ОјV input precision
  micropower operation and wide 2.7V to 36V supply range
  in a tiny new package—its 3mm × 3mm DFN package
  is so small it doesn’t even have leads. The LT6011 also
  provides rail-to-rail output swing and utilizes superbeta
  input transistors to achieve picoampere input currents.
  Hall Sensor Amplifier
  Figure 1 shows the LT6011 applied as a low power Hall
  sensor amplifier. The magnetic sensitivity of a Hall sensor is proportional to the DC excitation voltage applied
  across it. With a 1V bias voltage, the sensitivity of this
  Hall sensor is specified as 4mV/mTesla of magnetic
  п¬Ѓeld. At that level of DC bias, however, the 400О© bridge
  consumes 2.5mA. Reducing the excitation voltage would
  reduce the power consumption, but it would also reduce
  the sensitivity. This is where the beauty of precision
  micropower amplification becomes especially apparent.
  The LT1790-1.25 micropower reference provides a …

• Descargar
  Precision Op Amp Enables Fast Multiplexing at Low Power &mdash DN536
  PDF, 314 Kb, Archivo publicado: enero 23, 2015
  Extracto del documento

  Precision Op Amp Enables Fast Multiplexing at Low Power
  Design Note 536
  Kris Lokere
  Introduction
  If you are designing a system that measures a number
  of analog voltages, but not all at the same time, you
  can reduce downstream circuitry by multiplexing the
  measurements into a single output signal, then serially
  process and digitize the original voltage levels using
  shared components. The benefit is that the number
  and size of signal chain components is a fraction of
  that required by a per-channel design. Properly implementing a multiplexing solution requires attention to
  a few details, especially if you want to quickly switch
  between channels, measure accurately and maintain
  low power consumption.
  Respond Quickly
  Multiplexing increases the frequency content of the
  combined signal, since every time the multiplexer
  switches channels, the multiplexed signal changes
  value. Even if the input signals do not change quickly,
  the multiplexed signal does, so any circuitry after the
  multiplexer must respond quickly to these transitions.
  For instance, if the output signal does not fully settle …

Artículos

• Descargar
  Versatile Hot Swap Controller with Open Circuit Detect, Foldback Current Limiting and Much More &mdash LT Journal
  PDF, 200 Kb, Archivo publicado: sept 1, 2003
  Extracto del documento

  DESIGN FEATURES Versatile Hot Swap Controller with
  Open Circuit Detect, Foldback
  Current Limiting and Much More
  by Mark Belch Introduction
  When a circuit board is inserted into
  a live backplane, the input capacitors
  on the board can draw high inrush
  currents from the backplane power
  bus as they charge. The inrush current
  can permanently damage the connector pins and board components as well
  as glitch the system supply, causing
  other boards in the system to reset.
  The new LT4254 provides a compact
  and robust solution to eliminate these
  hot plugging issues.
  The LT4254 is designed to turn
  on a board’s supply voltage in a controlled manner, allowing the board to
  be safely inserted or removed from a
  live backplane having a supply voltage
  from 10.8V to 36V. The device features
  programmable inrush current control,
  current foldback, programmable 1%
  tolerance on the undervoltage and …

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Clasificación del fabricante

• Signal Conditioning > Amplifiers > Operational Amplifiers (Op Amps) > Precision Amplifiers (Vos | Low Power Amplifiers (Is < 1mA/amp) | Low Bias Current Amplifiers (Ib < 100pA) | High Voltage Amplifiers (>12V) | Rail-to-Rail Amplifiers

Otros nombres:

LT6011CMS8TRPBF, LT6011CMS8 TRPBF