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LTC1992 LTC1992 LTC1992-1 LTC1992-10 LTC1992-2

Notas de Diseño

• Descargar
  Easy-to-Use Differential Amplifiers Simplify Balanced Signal Designs &mdash DN333
  PDF, 79 Kb, Archivo publicado: marzo 2, 2004
  Extracto del documento

  Easy-to-Use Differential Amplifiers Simplify Balanced
  Signal Designs – Design Note 333
  Jon Munson Easy-to-Use Circuit Topology
  The block diagram in Figure 2 shows the general
  configuration of the differential-in/differential-out
  CMOS amplifier core, along with an output common
  mode servo. The values of the on-chip gain resistors
  depend on the dash suffix of the device as indicated. A
  convenient on-chip voltage-divider resistor network is
  also provided to support applications where a source
  of mid-supply potential (VMID) is needed.
  The LTC1992 is easy to use. Any signal difference at
  the inputs (within the input common mode range) are
  amplified and presented as a voltage difference at the output pins with a gain bandwidth product of about
  4MHz. The differential gain, A, is set by resistor values:
  A = RF/RG
  Any input common mode induced errors, primarily
  caused by small mismatches of resistor values, appear
  at the output as differential error. The common mode
  (shared offset) of the output pair is (VOUT+ + VOUT–)/2
  and independently governed to track the user-supplied
  VOCM output common mode control voltage (VOCM may
  be simply strapped to VMID if desired). The uncommitted LTC1992 (no dash sufп¬Ѓx) may be user conп¬Ѓgured …

Artículos

• Descargar
  Fully Differential Gain-Block Family Simplifies Interface Designs &mdash LT Journal
  PDF, 224 Kb, Archivo publicado: mayo 1, 2004
  Extracto del documento

  DESIGN FEATURES Fully Differential Gain-Block Family
  Simplifies Interface Designs by Jon Munson
  Introduction The LTC1992 product family provides
  simple amplification or level translation solutions for amplifying signals
  that are intrinsically differential or
  need to be made differential.
  The LTC1992 is available with uncommitted gain (base LTC1992), or in
  fixed gain versions with space-saving
  on-chip factory-trimmed resistors—
  namely, the LTC1992-1, LTC1992-2,
  LTC1992-5, and LTC1992-10, where
  the nominal gain is indicated by the
  suffix dash-number.
  Figure 1 shows a typical gain-of10 application where all gain setting
  components are included in the tiny
  MSOP-8 package. The device offers
  output common-mode control that
  operates completely independent
  from the input common-mode of the
  applied signal. The inputs and outputs can be used either differentially
  or single-ended as needed.
  The LTC1992 family operates with
  supply voltages from 2.7V single-supply to В±5V and typically consumes …

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• Signal Conditioning > Amplifiers > Operational Amplifiers (Op Amps) > Rail-to-Rail Amplifiers | Low Power Amplifiers (Is < 1mA/amp) | Low Bias Current Amplifiers (Ib < 100pA) | High Voltage Amplifiers (>12V)
• Signal Conditioning > Amplifiers > Differential Amplifiers > Fully Differential Amplifiers
• Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) Amplifiers