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LT1806 LT1806

Notas de Diseño

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  Precision LVDT Signal Conditioning Using Direct RMS to DC Conversion &mdash DN362
  PDF, 75 Kb, Archivo publicado: marzo 23, 2005
  Extracto del documento

  Precision LVDT Signal Conditioning Using Direct RMS to DC
  Conversion – Design Note 362
  Cheng-Wei Pei
  lowpass filtering of the rectified sine wave. However,
  the precision of the demodulation method depends on
  the accuracy of the phase adjustment. In addition, there
  are losses associated with demodulation, which usually
  involve switches and the associated charge injection
  and timing jitter. It is difficult to achieve 12-bit precision
  under these circumstances. Introduction
  Linear variable differential transformers (LVDTs) are
  theoretically infinite-resolution displacement measurement devices. An LVDT operates by comparing the
  magnetic flux coupled into two transformer secondary
  windings to determine the displacement of a moving
  transformer core. A low distortion sine wave acts as
  the input. The amplitude and phase of the output signal across the two secondary windings determine the
  distance and polarity of the LVDT core with respect to
  the center.
  Proper signal conditioning circuitry allows extremely
  precise measurements in demanding applications,
  such as in production manufacturing, fluid level measurements and structural/strain testing. One common
  application is to use an LVDT at the end of a Bourdon
  tube to measure minute changes in system or barometric pressure. A better approach to LVDT signal conditioning is shown …

Artículos

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  LTC1668 DAC and LT1807 Op Amp Achieve 90ns Settling to 16 Bits and 83dB SFDR in a Small Footprint &mdash LT Journal
  PDF, 169 Kb, Archivo publicado: sept 1, 2001
  Extracto del documento

  DESIGN IDEAS LTC1668 DAC and LT1807 Op Amp
  Achieve 90ns Settling to 16 Bits and
  83dB SFDR in a Small Footprint
  by Glen Brisebois, Ken Haastrup and Derek Redmayne
  The LTC1668 is a new 16-bit,
  50Msps differential, current output
  DAC in a small SSOP package. It has
  a 10mA full-scale output and a 1V
  output compliance and it achieves
  20ns settling to 0.1% into 50Ω loads.
  The LT1807 is a 325MHz, 140V/Вµs
  precision, low noise dual op amp available in a small MSOP package. Its
  combination of precision, low noise,
  high bandwidth and fast slew rate
  make it ideal for high performance
  signal conditioning and acquisition
  systems. Together, these components
  create a fast, precise, versatile, low
  distortion VOUT DAC with minimal
  PCB space requirements.
  The circuit in Figure 1 shows the
  LT1807 applied as a dual I/V converter to extend the LTC1668’s
  effective output compliance. With …

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Clasificación del fabricante

• 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

Otros nombres:

LT1807IS8PBF, LT1807IS8 PBF